Two points to make on this video: 1 -- I'm surprised you didn't mention that he wasn't holding the calipers "square" to the bore of the BB shell? Even assuming he had the touch of a master, there is no way to obtain even a "relatively" accurate measurement on a bore with calipers unless the internal jaws are square with the bore. 2 - Not to nitpick (but I'll do it anyways), at 9:30 in the video you talk about setting "pre-load" on a Shimano crank (or others). Technically, I believe a better term would be: "adjusting end-play". The last thing anyone should be doing on crank bearings is pre-loading them axially. Even if end-play is adjusted to zero, it is technically still not pre-load. 👍🙂
The resolution of the calipers is 0.01 mm which is more than double to the machining tolerance of the bearings. No amount of experience can fix that. Calipers were never meant for precision measurement. Telescoping gage and micrometer would be so much better but he wouldn't know how.
To even measure hundreds with a caliper is... just because it says many numbers on the display, it doesn't mean that you are able to trust that it, A) measure correct, B) YOU holding it correct... As a 25year machinist, this makes me cry :) Use calipers to get the ballpark. Then use correct tools to confirm the measurements.
@@rdt8888 the tightest i usually go on bearing tolerance is a -0.03mm interference . I agree its hard to get an truely accurate reading with calipers but not impossible
Have just watched your video 'How to change a bicycle Threadless Headset (AHeadset)'. Sorry Hambini, I appreciate it may be dated but it was shocking, As an aircraft engineer and keen home mechanic, unless your workshop practices have improved, I wouldnt let you anywhere near my bikes.
DRAAAAAAAAAAAAAAMAAAAAAAAAAA! I was expecting you to have a go at his bearing inspection video. That was hilariously incompetent. Merry Christmas, Hambini and Reginald.
16:56 Reginald, who claims to be an experienced bike mechanic cannot tell the difference between a threaded joint and corrosion!?!? and claims his severely undersized bike with a Titanium bottom bracket is really good, this highlights a growing trend amongst RUclipsrs who claim something is good when it objectively isn't. If you would like to question Reginald on his claim that his undersized bottom bracket is okay or his corrosion claims! the video is here ruclips.net/video/_Lt39NH-9Pk/видео.htmlsi=XzaHGosWmPsUWI_h&t=671 For the avoidance of doubt, I don't claim to be a good mechanic. Reaming me about how dirty I am is something I get off on!
@@theillegalimmigrant9314 It was his choice, as I said in the video, I was going to let it go but he just carried on. I personally think he has attempted to Shill for his own bike shop as he has claimed some things that are clearly crap are "good". He isn't the first - Jourdain coleman did that last week.
@Hambini as much as I like watching lions play with food, you rightly pointed out why Reginald attacks your vids- he gets major views off of them. He's a classic bottom feeder, choosing to attack a larger channel, praying for drama so he can get more views and subs. The only videos that hit big are his Hambini troll vids so he will continue since he can't gain traction on his own merit.
There was a Park Tools video where the mechanic measured the inside of a seat tube with a pair of callipers and widened the seat tube top slot (where the seat bolt is located) with an angle grinder. I pointed out that on both occasions the correct tools were not being used, i was accused of being pedantic. An open discussion between Hambini and Reginal would be worth a watch and more productive.
To be fair, a bottom bracket or a bearing shell has way stricter tolerances than a seat tube slot. No one would use a micrometer to measure it since all seat posts come in diameters with .1 mm increments at most and are somewhat standardized for many models/brands anyway. Also, as long it's steel and not carbon or high-end Al-alloy, I can see no detriment in using an angle grinder.
No idea. Do you know? When I do frame corrections, I usually go for a 45.98 on the boring machine. The tricky bit is getting both sides aligned within range. Machining the hole is easy, getting them aligned is difficult.
@@Hambini no idea either. I end up having to enlarge the hole. Still experimenting with the best method to get some kind of alignment. I have rigged up a tia from the seatpost on a frame right now. Using a frame gage to get the centreline.
@@_Zane__ I usually use Dormer but that will be a custom size. I don't know if PF30 or BB386 was originally designed to be Hole basis or shaft basis, it's not clear.
Have a look at "Shimano rim brake caliper Service, overhaul and maintenance (Dura-Ace, Ultegra, 105, Sora, Tiagra)" 12:05 by Hambini. The brake pads/carriers are mounted in the wrong direction in an educational video. That is such a massive and dangerous bodge. No further proof of Hambini's fundamental knowledge in "Engineering concepts" needed.
I have also been ridiculed by Reginald Scott when I pointed out that his bar tape was clearly rolling and the wear in one place only, could be due to his reach being a little bit too long. And how can manufacturing a cannister and filling it with CO2 to infate a single bicycle tyre, be good for the environment?
The whole environmental discussion in the bicycle industry is some real princess and the pea nonsense. I bet a couple wind turbine blades are more waste per year than the entire boutique bicycling industry, and there's piles of them discarded every year. I bet one EV catching fire ejects more crap into the atmosphere than the entire bicycle industry does in a decade.
@@trentvlak if everyone makes small changes in order to reduce their carbon footprint, we can benefit in the long term. 16g of CO2 isn't going to make any difference, but it isn't just one cartridge is it.
@@harryrowland4734 The term "carbon footprint" was invented by fossil fuel corporations to push the blame on consumers, while their industry causes the vast majority of CO2 omissions on the planet, even surpassing cars. The term has existed for decades now, giving people the chance to reduce their "footprint." It had zero effect. Even during COVID lockdowns, when people stayed home, CO2 emission only dropped by the single digit percentages. Blame the fossil fuel corporations for the pollution, not yourself! Systemic change is required. Although CO2 capsules for inflating tires is truly a wasteful idea that doesn't vibe with the image of bicycles in my opinion, its impact is negligable.
@@harryrowland4734 "if everyone makes small changes in order to reduce their carbon footprint". If 20% of polluters who contribute to 80% of pollution stopped polluting we wouldn't have to enslave the 80% who are the easy target for the virtue signalling lot.
I am really looking forward to the outcome of the stalking topic. Quite worrying that there are people out there who follow a five-year-old on his way to the kindergarden...
That headset video of yours is so cringe worthy, Id be embarrassed to highlight it further, you litterally got everything wrong in it. Sometimes its best to just say "you know what it was 6 years ago and i got some things wrong" rather than doubling down like a spoilt 5 year old and embarrasing yourself further.
Shell thickness appearance of differing thickness may be due to parallax. You get the same type of error sometimes by not viewing analog meters straight on. 5:00
@@mrnobody9821 Maybe - But how many examples of poorly manufactured tubing do you see for anything else. This is expensive titanium where I would think high standards would be maintained by the maker of such an expensive metal.
Hambini, please keep reaming! I love learning and have learned how to better service my bikes. Most bike mechanics I have dealt with are crap, regurgitating bike industry nonsense that ignores physics and engineering. And THEN, instead of learning they want to argue over it. When you take money from others you shouldn't make dickhead mistakes.
Titanium's expansion is 0.00000714 meters per meter per degree C. So, a 50mm diameter tube heated by 20C would increase diameter by less than one hundredth of a mm. I doubt that will ever matter. Titanium has about half the expansion of steel for the same temperature rise.
Hambini know best. For those who knows caliper well he can tell us that is a cheap caliper not fit to the measurement for three uncertainties. (1) +/- 0.1mm factory tolerance and (2) OD and ID jaws manufacturing offset to about +/- 0.05 to 0.1 mm. (3) Spring loaded skid pretension free play. What we have here is a press fit parts a BB shell. What else can we use? Experienced mechanics and engineers outside of a calibration lab often use two steps process. Use a good old mechanical caliper1 to contact “feel” the shell ID in step-1. Use a known good digital caliper2, set zero first then adjust it in multiple minute decrements until he gets the same frictional “feel” on ID previously reproduce that feel against the jaws in caliper2. Then record the display reading. Why not direct w/caliper2? Because we have rail to skid free play plus flex in the caliper which varies in proportion to the handling force during measurement.
When Captain Kirk sees this he may realize Scotty isn’t the engineer he thought he was! Rather a lot of humble pie should be consumed with the mince pies, me thinks!
@@Hambini Kirk asks Scotty to fit a BB into his titanium bike, yes cos he wants maximum ‘warp drive’! Thank goodness it’s not a Trek. OK, I’ll get my coat 🧥 hehe
LOL, maybe that's the bigger picture. Hambini and Reginald sitting there debating each other would be great entertainment! It'd be like Noel and Liam getting together 😀
I watch both of you. I think you both have valid opinions. But that headset bearing video was a car crash. I was actually shocked that it was something you would have posted on here. I initially thought it might have been a wind up.
Biggest issue I have with removing bearings, you NEVER re-use them so don't remove them until they are being changed. When that is happening, it doesn't matter if you use a puller or drift them out. As far as I'm aware, (plus over 50 years as a mechanic) you don't 'preload' deep row ball bearings but you do take the piss out of engineers who can't work on their own stuff because it's too difficult and only possible during assembly at the original factory (yet we manage to invent ways to fix the shit turned out without just buying new or sending it back)
Hambini, I’ve really enjoyed your videos over the last few years but I have to say that ‘how to change a headset’ video was….well, let’s just say I would do a lot of things differently to the way you did them back then. Happy New Year anyway chap.
I knew about that kind of topcap because my Cannondale has one. It seems that it's a bit tougher to set preload accurately. The manual threatens warranty will be void if another compression plug is substituted. It's known that a Cannondale warranty is worth nothing. See the videos from another U Tuber with 3 replacement frames, the last one also purchased and defective at the steer tube top bearing seat. I don't expect anything from them, so it's not even registered! With it's oversized rotors I'm on my own anyway. At least the stem bolts had been torqued to spec on the carbon steer tube. Maybe it won't kill me this year! After all, none of this has the Schwinn stamp of approval!
Hi Hambini. I have a question technical questions about measuring BB30 (or similar) bores in frames. Do you prefer to use a telescopic gauge and an outside micrometer? An inside micrometer? Or you prefer to use cylindrical blocks used as no/go gauges? Additionally... how do you check the two bearing surfaces are concentric, and/or parallel?
Yea. He's a bit on the spectrum. On another note, I made a comment on a mapdec video about grease and carbon interfaces and got shot down in the replies (not by mapdec)
17:28 threaded top cap? So bolt is threaded into the top cap? I've never heard of nor seen that. It should simply be a hole. The collar is normal, but threaded collar is not. I don't think that exists. I can't see a valid reason for threads there. The bolt is threaded of course as it goes into the compression plug. And yes using grease there is a good idea, of course no need do go cray, just a bit of grease to stop if from getting stuck. Only the bolt should move, thus no threads in the cap. Why is it threaded? I can't make sense of it.
It's plainly obvious it's threaded. Saying corrosion was holding it together was the most stupid thing I have heard for some time. I can't believe a "pro" mechanic said that.
@@HambiniI've never seen ITM on anything. I checked dit out only found pics of compression plug and a stem. Seems like the brand does not exist anymore.
@@mtbboy1993 ITM stands for Italmanubri. It is an Italian brand that makes handlebars, stems and seatposts. Most Italian bikes in the past had something from ITM on them.
Another funny and informative video Many people like me rely on mechanics as I'm likely to waste time and money diy-ing stuff but this makes me think again
I've taken my bike to a bikeshop very few times, one of the times they couldn't even cut the steerer straight, my mate also took his race bike to a big brand bike shop and in the service notes they said the chain was dry (the chain was waxed) and it looked as if they put some kind of mechanical grease on the chain meaning it had to be cleaned and waxed again. If you're actually into cycling and ride alot it will cost you far more money taking it to the bikeshop multiple times a year than it is to just buy the tools yourself and watch some youtube tutorials, and you don't have to worry about someone else messing with your bike because they have other ideas of what needs to be done or how it should be done. You can get all the tools including a bearing press and extractor for less than £100 so that'd pay for itself after a year.
The measurement of the bottom bracket with calipers is not accurate cause the caliper "fingers " are square so the actual dia would be slightly larger. ( I think you have mentioned this before ) .
They are actually sharp blades at least on good calipers, but its is near impossible to guarantee they are centred and perpendicular so calipers are at best good for a rough diam. To add to that, most cheap calipers under $250 or so do not have enough precision to measure a bearing bore though even if you did manage to pull a real number. 0.001" is about all you get form a basic mitutoyo with is not enough to accurately assess PF30 tolerance. If you have a $20 amazon type... 0.002" over 2 inches is dream land. It will tell you absolutely nothing.
Kind of agree with the last comment by TobiMc. I think it is good that channels like Hambini's point out bad quality control and poor industry practices and I'm not sure why Reginald Scott seems so anxious to try to get one over on him. None of us is perfect but there are ways of pointing out a person's errors, or what we think might be their errors, without trying to rubbing their nose in it. It's especially dangerous if you turn out not to be right or not to be perfect yourself. Personally, I would rather see a good-natured exchange based on differing points of view. The thing about grease is a case-in-point: Reginald says its fine and Hambini says that it may not be. I tend to side with Hambini in that Grease is a mixture of things and I would want to be fairly sure that none of the components, presumably the more solvent-like organic chemicals, would damage the resin of a carbon frame. One would hope that any grease marketed to the bike industry would be fairly safe on carbon but, as channels like Hambini's have shown, the bike industry is not always that good at doing things properly. A few years ago I went into a book shop and asked if they had any books about lubricants; I was told to look in the non-friction section. I'm so terribly sorry....
The thing is hambini is a well known personality, has a sizeable following and is at this point a 'brand.' No publicity is bad publicity and whoever Reginald is is just getting traffic by mentioning hambini.
Most people will only go there once. The guy is a complete plonker who seems to cater mostly the misty eyed fools that think road bikes peaked in the 90's and anything that isn't 11 speed 105 rim brake is over complicated and bougie. The epitome of "a little knowledge is a dangerous thing". I'm pretty sure that any half competent home mechanic knows more than he does about bikes.
I saw this mechanic's video in my feed, and ignored it because I figured he was desperately trying to get hits; I figured no way would he know more than Hambini. Thanks for saving my time, and providing a good yuk!
As far as the top cap and bolt goes, remove and tap the cap and separate because you do not want to tighten up with the cap bonded with the bolt, you want the cap separated from that motion when tightening up the bolt. Its just full of crap/dirt/gunk from you not being bothered about the weather with the bike. X
He's taken a basic concept, that Carbon Dioxide is necessary for photosynthesis, and concluded that this means that climate change isn't real. That's like saying that drinking water is necessary for life on earth, therefore flooding is harmless
Cmon guys… this is just an old fashioned Pissing contest…may i suggest a livestream pissing contest 😂. The loser gets to apologize to David Arthur and say “All hail!” to Peak Torque..
IIRC, before his first video name dropping Hambini, he had less than 1000 subs - I became aware of his channel last year because of his post about his Cinelli Nemo that I considered getting
This Reggie is like that true crime RUclipsr who constantly make videos about his obsession with Lucy Letby, even that he has attended her court cases and sentencing and now plans to attend her appeals
Wonderful reaming😂 BUT there is such a thing like corrision between steel and Aluminium. It is not real corrosion but a white powderly Connection between the two materials after years of usage without removing the seatpost. Had several years ago a seatpost stuck to a frame and it was a pain in the *ss to save both. Happy new year,Sir🐷🍄🍾
I can't help but notice how the chair keeps shaking throughout the video and can only assume Hambini shakes his legs like most of us Engineers or there's a hairdresser outside the video frame.
I have luck... bike mechanic removed bearings on my old alu wheelset with that odd dentist tool... So I would rather bring my Hypers to my dentist when needed - anyway, she is a psychopath, she says, when I come around. Thanks, Hambini, you saved my teeth (I don't care for old wheels).
im not here for the sarcasm, not really here for the engineering highlights, im here for the recommended advertisements in the captured RUclips segments to learn more about the one who calls himself a magical hamster.
I love the back and forth. I commented on his bearing removal video and said your method is completely valid for the home mechanic who only services their own bikes and does not require a special tool if you only have one or two wheelsets. I would expect him to have those tools since he's a bike shop mechanic.
Definitely an Aldi caliper I got the same one to start with last year but surprisingly very accurate! Still bought a better one anyway when funds were better but still look at the aldi one out curiosity to see how off to the expensive one and never been off yet so really can't knock it
I use wax on parts I'm afraid will seize or corrode. Only grease or oil in sealed bearings. Seems like wax is more water proof and will last longer to which means better protection.
I went and watched his video on how to remove a bearing. I knew before i even clicked, what hes gonna say and he sure is. Grabbed blind bearing puller, overtightened it and used puller and not a slide hammer. I kinda agree if there is space to put that type of a bearing puller in and only slightly tighten it, but no chance. On that small size of a bearing with that small of chamfer, this puller aint grabbing nothing, untill you squeeze it. then in kinda ruins the point, since you are deforming bearing. If you were to cause damage that is definetly how. I myself would of knocked out with a punch too, or at least partially to properly engage puller and pulled it with a slide hammer, and not that dinky clamp screw type style, that is destined to marr hub surface and bend a spoke when it slips :) Also he is wearing nitrile gloves, well seasoned mechanic, that
Also valid point about grease. For the life of me couldn’t figure why bike “mechanics” grease sealed bearing in headtube and its inner and outer surfaces like its a motorcycle with 2 part bearing and separate cage with balls
11:49 looks like he used the correct tool. But the tool shown here won't work, bearings shown seem to be different. It clearly worked in his video. All you need is the correct tool. Yes if it's like you show here it won't work. 🤔
The lack of a Princess Blanket in your maintenance video is disturbing and to this day I'm still recovering from the shock.
Hambini sent it to Peak Torque as a Christmas present
@@treyquattroI thought it went to Absolute Black🤷🏼♂️
You guys are bringing bikes up to an industrial standard with these videos. Keep up the good work.
Two points to make on this video:
1 -- I'm surprised you didn't mention that he wasn't holding the calipers "square" to the bore of the BB shell? Even assuming he had the touch of a master, there is no way to obtain even a "relatively" accurate measurement on a bore with calipers unless the internal jaws are square with the bore.
2 - Not to nitpick (but I'll do it anyways), at 9:30 in the video you talk about setting "pre-load" on a Shimano crank (or others). Technically, I believe a better term would be: "adjusting end-play". The last thing anyone should be doing on crank bearings is pre-loading them axially. Even if end-play is adjusted to zero, it is technically still not pre-load.
👍🙂
I would agree, End play is the better reference.
@@kwisin1337 I prefer fore play.
The resolution of the calipers is 0.01 mm which is more than double to the machining tolerance of the bearings. No amount of experience can fix that. Calipers were never meant for precision measurement. Telescoping gage and micrometer would be so much better but he wouldn't know how.
To even measure hundreds with a caliper is... just because it says many numbers on the display, it doesn't mean that you are able to trust that it, A) measure correct, B) YOU holding it correct...
As a 25year machinist, this makes me cry :)
Use calipers to get the ballpark. Then use correct tools to confirm the measurements.
@@rdt8888 the tightest i usually go on bearing tolerance is a -0.03mm interference . I agree its hard to get an truely accurate reading with calipers but not impossible
Have just watched your video 'How to change a bicycle Threadless Headset (AHeadset)'. Sorry Hambini, I appreciate it may be dated but it was shocking, As an aircraft engineer and keen home mechanic, unless your workshop practices have improved, I wouldnt let you anywhere near my bikes.
This. No one can ignore that video when credibility is at stake.
DRAAAAAAAAAAAAAAMAAAAAAAAAAA!
I was expecting you to have a go at his bearing inspection video. That was hilariously incompetent.
Merry Christmas, Hambini and Reginald.
I just realized why people think you are short and are surprised to see you in person. Your watch is huge.
At the end of the video Hambini is still smiling but the rocking of his chair shows that he is really raging inside. For good reason.
It’s called a “tell” and it’s seen in people who are lying.
Hambini you are wrong on this sorry.
"David Arthur moment" -- love it
The man who once built a road bike for GCN on which he installed disc brakes "for safety," then installed 19 mm track tires to save weight
"Titanium is unforgiving" is a gentle way to put it. I had to install a ti seat post into a ti bike the other day and god damn, it did not want to go.
Are these hairdressing euphemisms ?
He was probably trained at a leading, but unspecified Portuguese University...
hired by AbsoluteBlack to attempt at reaming confirmed
16:56 Reginald, who claims to be an experienced bike mechanic cannot tell the difference between a threaded joint and corrosion!?!? and claims his severely undersized bike with a Titanium bottom bracket is really good, this highlights a growing trend amongst RUclipsrs who claim something is good when it objectively isn't.
If you would like to question Reginald on his claim that his undersized bottom bracket is okay or his corrosion claims! the video is here ruclips.net/video/_Lt39NH-9Pk/видео.htmlsi=XzaHGosWmPsUWI_h&t=671
For the avoidance of doubt, I don't claim to be a good mechanic. Reaming me about how dirty I am is something I get off on!
I bet he wished he had not messed with you. The damage to his business...
@@theillegalimmigrant9314 It was his choice, as I said in the video, I was going to let it go but he just carried on. I personally think he has attempted to Shill for his own bike shop as he has claimed some things that are clearly crap are "good". He isn't the first - Jourdain coleman did that last week.
@Hambini as much as I like watching lions play with food, you rightly pointed out why Reginald attacks your vids- he gets major views off of them. He's a classic bottom feeder, choosing to attack a larger channel, praying for drama so he can get more views and subs.
The only videos that hit big are his Hambini troll vids so he will continue since he can't gain traction on his own merit.
I'm looking forward to Reginald's response 😀
I don't know what can beat "CO2 is not pollution"
@@Hambiniit isn't though. It's a gas.
@@roddas26 it's necessary for life like many things. Like many things, excesses are what harms.
@@TobiMcTobeface it is still not pollution.
Pretty sure it’s one of the 4 building blocks for life on earth. Not a scientist though 😂
There was a Park Tools video where the mechanic measured the inside of a seat tube with a pair of callipers and widened the seat tube top slot (where the seat bolt is located) with an angle grinder. I pointed out that on both occasions the correct tools were not being used, i was accused of being pedantic. An open discussion between Hambini and Reginal would be worth a watch and more productive.
To be fair, a bottom bracket or a bearing shell has way stricter tolerances than a seat tube slot. No one would use a micrometer to measure it since all seat posts come in diameters with .1 mm increments at most and are somewhat standardized for many models/brands anyway. Also, as long it's steel and not carbon or high-end Al-alloy, I can see no detriment in using an angle grinder.
ever wondered why the Park Tool 46mm reamer is only 45.94mm ?
No idea. Do you know?
When I do frame corrections, I usually go for a 45.98 on the boring machine. The tricky bit is getting both sides aligned within range. Machining the hole is easy, getting them aligned is difficult.
@@Hambini no idea either. I end up having to enlarge the hole. Still experimenting with the best method to get some kind of alignment. I have rigged up a tia from the seatpost on a frame right now. Using a frame gage to get the centreline.
@@Mapdec Imagine if yout fitted a CBear on Reginald's TI Frame!
Are there other reamer brands with a better size?
@@_Zane__ I usually use Dormer but that will be a custom size. I don't know if PF30 or BB386 was originally designed to be Hole basis or shaft basis, it's not clear.
Hambini dropping this on Xmas is so savage 😬😂😂
Have a look at "Shimano rim brake caliper Service, overhaul and maintenance (Dura-Ace, Ultegra, 105, Sora, Tiagra)" 12:05 by Hambini. The brake pads/carriers are mounted in the wrong direction in an educational video. That is such a massive and dangerous bodge. No further proof of Hambini's fundamental knowledge in "Engineering concepts" needed.
Hi hambini, would you be releasing the lube comparisons video ?
I have also been ridiculed by Reginald Scott when I pointed out that his bar tape was clearly rolling and the wear in one place only, could be due to his reach being a little bit too long.
And how can manufacturing a cannister and filling it with CO2 to infate a single bicycle tyre, be good for the environment?
The whole environmental discussion in the bicycle industry is some real princess and the pea nonsense. I bet a couple wind turbine blades are more waste per year than the entire boutique bicycling industry, and there's piles of them discarded every year. I bet one EV catching fire ejects more crap into the atmosphere than the entire bicycle industry does in a decade.
@@trentvlak if everyone makes small changes in order to reduce their carbon footprint, we can benefit in the long term.
16g of CO2 isn't going to make any difference, but it isn't just one cartridge is it.
@harryrowland4734 , you clearly are uneducated on this subject. Just keep on getting your jabs and stqy home for the good of the environment 😂
@@harryrowland4734
The term "carbon footprint" was invented by fossil fuel corporations to push the blame on consumers, while their industry causes the vast majority of CO2 omissions on the planet, even surpassing cars. The term has existed for decades now, giving people the chance to reduce their "footprint." It had zero effect. Even during COVID lockdowns, when people stayed home, CO2 emission only dropped by the single digit percentages.
Blame the fossil fuel corporations for the pollution, not yourself! Systemic change is required.
Although CO2 capsules for inflating tires is truly a wasteful idea that doesn't vibe with the image of bicycles in my opinion, its impact is negligable.
@@harryrowland4734 "if everyone makes small changes in order to reduce their carbon footprint". If 20% of polluters who contribute to 80% of pollution stopped polluting we wouldn't have to enslave the 80% who are the easy target for the virtue signalling lot.
I'm waiting for Peak Torque to weigh in on the other issue that was raised - the myth of titanium.
It will be interesting to say the least.
Almost an engineering orgy then...
Titanium is not a myth. it is real. I have some. Very shiny.
I am really looking forward to the outcome of the stalking topic. Quite worrying that there are people out there who follow a five-year-old on his way to the kindergarden...
and expose him as a janitor... not good for both a janitor and brainless sheep whose brain he screwed.
That headset video of yours is so cringe worthy, Id be embarrassed to highlight it further, you litterally got everything wrong in it. Sometimes its best to just say "you know what it was 6 years ago and i got some things wrong" rather than doubling down like a spoilt 5 year old and embarrasing yourself further.
Bit I'm not saying it was good. It was garbage
Shell thickness appearance of differing thickness may be due to parallax. You get the same type of error sometimes by not viewing analog meters straight on. 5:00
I don't think that's enough of a camera angle to cause that level of image distortion, if you follow the edges round you'll see what I mean.
@@mrnobody9821 Maybe - But how many examples of poorly manufactured tubing do you see for anything else. This is expensive titanium where I would think high standards would be maintained by the maker of such an expensive metal.
You are correct.
@@moshet842 Happy New Year! Please see @reginaldscot165's response. It was his picture.
Keep up the work Hambini, bell ends will be bell ends.
Reginald Dunning and Kruger does bike maintenance.
Hambini, please keep reaming! I love learning and have learned how to better service my bikes. Most bike mechanics I have dealt with are crap, regurgitating bike industry nonsense that ignores physics and engineering. And THEN, instead of learning they want to argue over it. When you take money from others you shouldn't make dickhead mistakes.
What effect might ambient temp. have in the BB diameter measurement? Enough to move beyond tolerance at that sort of accuracy?
Titanium's expansion is 0.00000714 meters per meter per degree C. So, a 50mm diameter tube heated by 20C would increase diameter by less than one hundredth of a mm. I doubt that will ever matter. Titanium has about half the expansion of steel for the same temperature rise.
@@chriswright9096 Thanks!
I knew this was going to come quick after I saw the other video pop up on my recommendations 😂
Hambini know best.
For those who knows caliper well he can tell us that is a cheap caliper not fit to the measurement for three uncertainties. (1) +/- 0.1mm factory tolerance and (2) OD and ID jaws manufacturing offset to about +/- 0.05 to 0.1 mm. (3) Spring loaded skid pretension free play. What we have here is a press fit parts a BB shell. What else can we use?
Experienced mechanics and engineers outside of a calibration lab often use two steps process. Use a good old mechanical caliper1 to contact “feel” the shell ID in step-1. Use a known good digital caliper2, set zero first then adjust it in multiple minute decrements until he gets the same frictional “feel” on ID previously reproduce that feel against the jaws in caliper2. Then record the display reading.
Why not direct w/caliper2? Because we have rail to skid free play plus flex in the caliper which varies in proportion to the handling force during measurement.
What is the reference of this ITM stem cap Hambini please?
No Idea, the video is 7 years old, the bike was bought in 2013 I think.
Hi Hambini, what tool and procedure would you please recommend for removing bearings from wheel hubs (front and rear)? Thanks
Your wheel hub manufacturer should answer this not this guy, who says he is not a bike mechanic - why do you need his input at all
A little knowledge is a dangerous thing.
I think you'll find that Hambini has more than a little knowledge
Isn't it just a bit obvious I didn't mean Mr. H?
@@greggsenne1268 I think it's a bot
To the average bloke, riding an average bike this means fuck all, does the BB allow the cranks turn, good, move on, nothing to see here...🙄
Merry Christmas Hambini.
Kudos to Reginald for willing to be screw from behind in order to gain a few views for his channel. You gotta do what you gotta do sometimes.
I tune in for both. But mainly the learning.
Come on Hambini. Your above this. You lost with the wheel bearing thing. This is petty.
I have to laugh at people thinking calipers are accurate when you should be using micrometers
Yes, especially that apparently "high quality" piece of junk he is using.
Geezus... "Knob end" means something in British slang...and I'm not british
When Captain Kirk sees this he may realize Scotty isn’t the engineer he thought he was! Rather a lot of humble pie should be consumed with the mince pies, me thinks!
Agh the comments, I live for the comments.
@@Hambini Kirk asks Scotty to fit a BB into his titanium bike, yes cos he wants maximum ‘warp drive’! Thank goodness it’s not a Trek. OK, I’ll get my coat 🧥 hehe
Hambini you should do more Livestreams. Maybe one together with that Guy Reginald
LOL, maybe that's the bigger picture. Hambini and Reginald sitting there debating each other would be great entertainment! It'd be like Noel and Liam getting together 😀
Who puts lube on there top cap bolt?
I watch both of you. I think you both have valid opinions. But that headset bearing video was a car crash. I was actually shocked that it was something you would have posted on here. I initially thought it might have been a wind up.
RS’s videos showed up in my feed a couple of months ago and to be honest he seemed like a whiney little girl
Love you mate ,to be frank that headset video is hilarious.
Biggest issue I have with removing bearings, you NEVER re-use them so don't remove them until they are being changed.
When that is happening, it doesn't matter if you use a puller or drift them out.
As far as I'm aware, (plus over 50 years as a mechanic) you don't 'preload' deep row ball bearings but you do take the piss out of engineers who can't work on their own stuff because it's too difficult and only possible during assembly at the original factory (yet we manage to invent ways to fix the shit turned out without just buying new or sending it back)
Keep reaming Hambini. This goose needs to be reamed.
Just like that headset. Give it some good mallet love.
Hambini, I’ve really enjoyed your videos over the last few years but I have to say that ‘how to change a headset’ video was….well, let’s just say I would do a lot of things differently to the way you did them back then. Happy New Year anyway chap.
I don't disagree with any of that. and I'm happy to accept when I make a mistake.
Happy days!! Top xmas bent over reaming with a festive hat on. 🎄🎄🎄
OMG, this is your best yet. I’m in stitches here laughing my ass off . Pure gold
Is a verneir caliper accurate enough to measure interference tolerances? I wouldn't have thought so.
I knew about that kind of topcap because my Cannondale has one. It seems that it's a bit tougher to set preload accurately. The manual threatens warranty will be void if another compression plug is substituted. It's known that a Cannondale warranty is worth nothing. See the videos from another U Tuber with 3 replacement frames, the last one also purchased and defective at the steer tube top bearing seat. I don't expect anything from them, so it's not even registered! With it's oversized rotors I'm on my own anyway. At least the stem bolts had been torqued to spec on the carbon steer tube. Maybe it won't kill me this year! After all, none of this has the Schwinn stamp of approval!
Merry Christmas Reginald
Hi Hambini. I have a question technical questions about measuring BB30 (or similar) bores in frames. Do you prefer to use a telescopic gauge and an outside micrometer? An inside micrometer? Or you prefer to use cylindrical blocks used as no/go gauges? Additionally... how do you check the two bearing surfaces are concentric, and/or parallel?
The gauge is the best way for an overall measurement, if the hole is oval, a stick mic is better
Reginald Perrin
"some of the things he does, you could end up hurting yourself doing them" - like riding gravel on 25mm tyres. Ouch.
Merry Christmas hambini
.. lets dive in ..
😂
I think Reginald is a halfords mechanic
No matter > he clearly is not a mechanic using the wrong tool to measure a round hole.
Yea. He's a bit on the spectrum. On another note, I made a comment on a mapdec video about grease and carbon interfaces and got shot down in the replies (not by mapdec)
he doesn't understand the concept of tolerance
17:28 threaded top cap? So bolt is threaded into the top cap? I've never heard of nor seen that. It should simply be a hole. The collar is normal, but threaded collar is not. I don't think that exists. I can't see a valid reason for threads there. The bolt is threaded of course as it goes into the compression plug. And yes using grease there is a good idea, of course no need do go cray, just a bit of grease to stop if from getting stuck. Only the bolt should move, thus no threads in the cap.
Why is it threaded? I can't make sense of it.
It's plainly obvious it's threaded. Saying corrosion was holding it together was the most stupid thing I have heard for some time. I can't believe a "pro" mechanic said that.
@@Hambini But why is it threaded? That does not make sense to me.
@@HambiniI've never seen ITM on anything. I checked dit out only found pics of compression plug and a stem. Seems like the brand does not exist anymore.
@@mtbboy1993Providing you can generate the clamping force, the bearings don't care. I guess the ITM guy didn't care about having logos lining up.
@@mtbboy1993 ITM stands for Italmanubri. It is an Italian brand that makes handlebars, stems and seatposts. Most Italian bikes in the past had something from ITM on them.
C02 is, in fact, not pollution. 🤷♂️
It is though...
Another funny and informative video
Many people like me rely on mechanics as I'm likely to waste time and money diy-ing stuff but this makes me think again
indeed…me as well…ebay is delivering my park tools as we speak.
I've taken my bike to a bikeshop very few times, one of the times they couldn't even cut the steerer straight, my mate also took his race bike to a big brand bike shop and in the service notes they said the chain was dry (the chain was waxed) and it looked as if they put some kind of mechanical grease on the chain meaning it had to be cleaned and waxed again. If you're actually into cycling and ride alot it will cost you far more money taking it to the bikeshop multiple times a year than it is to just buy the tools yourself and watch some youtube tutorials, and you don't have to worry about someone else messing with your bike because they have other ideas of what needs to be done or how it should be done. You can get all the tools including a bearing press and extractor for less than £100 so that'd pay for itself after a year.
One note: a cheap digital vernier caliper is about as consistent and accurate as a “insert crap & or junk analogy here”
Hanbini is such a bully.
Perhaps you could work together. Although why are your rim brake pads the wrong way round.
@@jonnysellerBecause i'm a shite mechanic
The measurement of the bottom bracket with calipers is not accurate cause the caliper "fingers " are square so the actual dia would be slightly larger. ( I think you have mentioned this before ) .
They are actually sharp blades at least on good calipers, but its is near impossible to guarantee they are centred and perpendicular so calipers are at best good for a rough diam. To add to that, most cheap calipers under $250 or so do not have enough precision to measure a bearing bore though even if you did manage to pull a real number. 0.001" is about all you get form a basic mitutoyo with is not enough to accurately assess PF30 tolerance. If you have a $20 amazon type... 0.002" over 2 inches is dream land. It will tell you absolutely nothing.
What is the correct tool to use to extract bearings in this use case? I would love to know as my Spank Hex front hub has this exact configuration.
Look up “blind bearing puller”. Should do the trick.
@@reineherrera8897 which is exactly what this video shows to be the wrong tool in this case
@@iffy_too4289😂
The lack of industry standards and uniformity in the cycling industry is honestly comical.
Kind of agree with the last comment by TobiMc. I think it is good that channels like Hambini's point out bad quality control and poor industry practices and I'm not sure why Reginald Scott seems so anxious to try to get one over on him. None of us is perfect but there are ways of pointing out a person's errors, or what we think might be their errors, without trying to rubbing their nose in it. It's especially dangerous if you turn out not to be right or not to be perfect yourself. Personally, I would rather see a good-natured exchange based on differing points of view. The thing about grease is a case-in-point: Reginald says its fine and Hambini says that it may not be. I tend to side with Hambini in that Grease is a mixture of things and I would want to be fairly sure that none of the components, presumably the more solvent-like organic chemicals, would damage the resin of a carbon frame. One would hope that any grease marketed to the bike industry would be fairly safe on carbon but, as channels like Hambini's have shown, the bike industry is not always that good at doing things properly. A few years ago I went into a book shop and asked if they had any books about lubricants; I was told to look in the non-friction section. I'm so terribly sorry....
Damn. All you have to do is make a bunch of unchallenged presumptions that bolster your point to win an internet argument?! Who knew! Reem away Bini!
If I understood you correctly, the bearing manufacturer suggested that you do their reaming for them, for our viewing pleasure! 👍
The thing is hambini is a well known personality, has a sizeable following and is at this point a 'brand.' No publicity is bad publicity and whoever Reginald is is just getting traffic by mentioning hambini.
Most people will only go there once. The guy is a complete plonker who seems to cater mostly the misty eyed fools that think road bikes peaked in the 90's and anything that isn't 11 speed 105 rim brake is over complicated and bougie. The epitome of "a little knowledge is a dangerous thing". I'm pretty sure that any half competent home mechanic knows more than he does about bikes.
I saw this mechanic's video in my feed, and ignored it because I figured he was desperately trying to get hits; I figured no way would he know more than Hambini. Thanks for saving my time, and providing a good yuk!
I liked his video on why CO2 is good.
Peace and goodwill to all men ….well most, except those who don’t know what they are talking about ..
As far as the top cap and bolt goes, remove
and tap the cap and separate because you
do not want to tighten up with the cap bonded
with the bolt, you want the cap separated from
that motion when tightening up the bolt. Its just
full of crap/dirt/gunk from you not being bothered
about the weather with the bike. X
The sarcasm. Love it!
@@Trippenzoid your comment sounds like a much needed self-reflection, tell me I'm wrong.
In automotive you use certain tools for certain jobs. I do my own bike work. Having a mechanical background.
The guy thinks Co2 is good for the planet. He's clearly trying to build an audience by taking pot shots at you.
... and it is.
Moderation
CO2 is plant food. More is good. Even more is better. It improves crop yields. Feed the world.
He's taken a basic concept, that Carbon Dioxide is necessary for photosynthesis, and concluded that this means that climate change isn't real.
That's like saying that drinking water is necessary for life on earth, therefore flooding is harmless
Cmon guys… this is just an old fashioned Pissing contest…may i suggest a livestream pissing contest 😂. The loser gets to apologize to David Arthur and say “All hail!” to Peak Torque..
I'm sure he got his Engineering degree at HALFORDS.
I think you'll find that Hambini has excellent engineering qualifications.
That Reginald guy is a joke who tries to gain attention/subscribers by mentioning your name.
I think he does too. A disproportionate number of videos on his channel have my name in them.
Reginald goes on a bit I must admit, but he's pretty much on point.
IIRC, before his first video name dropping Hambini, he had less than 1000 subs - I became aware of his channel last year because of his post about his Cinelli Nemo that I considered getting
This Reggie is like that true crime RUclipsr who constantly make videos about his obsession with Lucy Letby, even that he has attended her court cases and sentencing and now plans to attend her appeals
I think it was fine. At least the bike servicing video.
It is very common for both carbon and metal bottom bracket shells to have thicker walls on the bottom side by design.
Did he even zero his calipers.
Sorry dude - no headset top cap should ever sound like that.
Well there 35 bottom bracket videos with carbon that do sound like that
RS must be gaslighting his viewers.
His friends on Grindr too.
Wonderful reaming😂 BUT there is such a thing like corrision between steel and Aluminium. It is not real corrosion but a white powderly Connection between the two materials after years of usage without removing the seatpost. Had several years ago a seatpost stuck to a frame and it was a pain in the *ss to save both.
Happy new year,Sir🐷🍄🍾
I can't help but notice how the chair keeps shaking throughout the video and can only assume Hambini shakes his legs like most of us Engineers or there's a hairdresser outside the video frame.
I have luck... bike mechanic removed bearings on my old alu wheelset with that odd dentist tool...
So I would rather bring my Hypers to my dentist when needed - anyway, she is a psychopath, she says, when I come around.
Thanks, Hambini, you saved my teeth (I don't care for old wheels).
im not here for the sarcasm, not really here for the engineering highlights, im here for the recommended advertisements in the captured RUclips segments to learn more about the one who calls himself a magical hamster.
I suggest dueling banjos at dawn for the reciprocating reamings....Hambini versus Reginald, a fight to the last note or string.
I love the back and forth. I commented on his bearing removal video and said your method is completely valid for the home mechanic who only services their own bikes and does not require a special tool if you only have one or two wheelsets. I would expect him to have those tools since he's a bike shop mechanic.
Definitely an Aldi caliper I got the same one to start with last year but surprisingly very accurate! Still bought a better one anyway when funds were better but still look at the aldi one out curiosity to see how off to the expensive one and never been off yet so really can't knock it
Top cap sounds to send chills down the spines of those who travelled on the Titan submersible and lived to tell the tale 🥴
Bearing manufacturers must be fun guys to hang out with.
I use wax on parts I'm afraid will seize or corrode. Only grease or oil in sealed bearings. Seems like wax is more water proof and will last longer to which means better protection.
I went and watched his video on how to remove a bearing. I knew before i even clicked, what hes gonna say and he sure is. Grabbed blind bearing puller, overtightened it and used puller and not a slide hammer.
I kinda agree if there is space to put that type of a bearing puller in and only slightly tighten it, but no chance. On that small size of a bearing with that small of chamfer, this puller aint grabbing nothing, untill you squeeze it. then in kinda ruins the point, since you are deforming bearing. If you were to cause damage that is definetly how.
I myself would of knocked out with a punch too, or at least partially to properly engage puller and pulled it with a slide hammer, and not that dinky clamp screw type style, that is destined to marr hub surface and bend a spoke when it slips :)
Also he is wearing nitrile gloves, well seasoned mechanic, that
Also valid point about grease. For the life of me couldn’t figure why bike “mechanics” grease sealed bearing in headtube and its inner and outer surfaces like its a motorcycle with 2 part bearing and separate cage with balls
Mistake?!! Youre fired!
Hambini!I think you made this guy famous😂
Reginald is the best lowly colonial expat bike mechanic in the world.
There are a few in Hong Kong that could take that title
I don't trust anyone who pronounces 'aluminium' the way he does.
11:49 looks like he used the correct tool. But the tool shown here won't work, bearings shown seem to be different. It clearly worked in his video. All you need is the correct tool. Yes if it's like you show here it won't work. 🤔
well it didn't, he damaged the spacer.the end is deformed.