Should You Lube Your Cables? | GCN Tech Clinic
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- Опубликовано: 23 июл 2024
- Should you grease your ceramic bearings? How do you go about choosing a new stem to make your gravel bike more racey? Is Shimano GRX compatible with Ultegra? This week Jon is in the clinic to answer all of your cycling tech questions.
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to avoid confusion: 'ceramic grease' is something totaly different than 'grease for ceramic bearings' ! it is used as an anti seize mounting grease. do not use ceramic grease in bearings.
I utilize powder graphite on my campy cables before inserting them into their cable casings. Job beautifully done!
Third open ended wrench from the right is upside down. Geez Jon, take a bit of pride in your shop!!
I use Bike-Aid Dri-Slide on cables and housing. It will drain through full-length housing if you set it up right. Won't attract dust/dirt/grime and makes shifting and braking feel like new. Works in mechanical shifters as well.
Where can I get it?
@@nigelnightmare4160 In North America you can find it on Amazon. Not sure about availability outside of that.
#askgcntch Hey John, I've been playing around with saddle tilt lately and I've found I can stay in a aero position for longer with my saddle tilted down at 9 degrees and I feel must faster. My questions is, besides the added pressure on my hands, are there any other downsides for having a non-level saddle?
#askgcn. Love the show, your my go to channel. I’m currently using Sram force 22 mechanical group set. I want to upgrade to electronic shifting but the cost of upgrading to the Force eTap AXS is too expensive. To save cost can I replace the chain rings to the 12 speed rings without changing the crank?
Hi Jon, I have tried putting 2 ultegra chains in 2 separate glass jars filled with diesel. One i left in for about 6 months (chain A) and one still being soaked for at least a year (chain b) now. I shake it once in a while hopefully it will knock off more grime off the chain. I tried brushing chain with just diesel and a steel brush. Latex gloves I was wearing melted and was not as clean as I want it to be. Ended up using laundry powder/detergent and was able to get it spotless. Not my usual cleaning method but just wanted to experiment. Also I noticed that ultegra cogs dont get shiny some parts of the 105 cogs do get shiny with a steel brush. Yes I don't suggest diesel unless they plan to soak the part "long" term
The viscosity of lubricants change with the temperature .The cables I had put lube inside became sluggish and locked at - 10 but when I brought the bike inside the cables worked fine again . Now I use a very thin lubricant sparingly and thats suited for lower temperatures.
#AskGCNTech
Is it possible for the rear derailleur spring to wear out (Shimano deore 13 years old)? My commuter mountainbike got some problems shifting in the middle of the range. I always have to coax the gear by shifting two forward and one back. I have already tried the whole range of the barrel adjuster to no avail.
Chain, chassette and crankset are new.
Hi Jon- noticed a couple days ago that I have some wobble in my cassette while freewheeling. Is this something I should get sorted out? Rear wheel is as true as I can get it. Love the show! #AskGCNTech
#askgcn I am looking to get a sub-compact double crankset on my Soma Wolverine gravel bike & not sure what to get. My current crankset is a Sram Rival compact double crankset in a GXP mount. It's paired to a 10spd Sram GX rear derailleur. I looking at subcompact because I ride in an area with lots of steep mountains trails. I wasn't able to find any on Sram's website. Any suggestions on a 3rd party subcompact double(46/30 or thereof crankset? Thanks!
#askGCNTech. Hi Jon, I recently bought a seven cycles carbon frame from eBay. Absolute bargain! It has internal cable routing. Unfortunately, the cable stops / ports where the cables exit the frame are missing and the company no longer produce them. I can’t find any similar sized ones from other brands....can you think of any solutions? Thanks
Thanks Jon, appreciate the grease guidance! Ordered the specific bearing lube!
Hi John, I find white spirit works well as a degreaser. Not quite as bad as diesel or petrol, it's cheaper, just dispose of the waste at the local recycle depot.
This weekend I went to put a bottle cage back on my CX bike and found that the ‘Rivnut’ (think that’s what it’s called), that the bolt screws into has come loose. So trying to unscrew the bolt from the bike just spins the Rivnut in the frame. I was able to get the bolt off by holding it with a pair of pliers while gently turning the bolt - but long term I guess this needs replacing? Is that something you can do at home? Or best to just take it into local bike shop? Thanks! #AskGCNTech
#ASKGCNTech so I was an idiot and got a 11-30 cassette when upgrading my bike from 8 Speed Triple to 9 Speed Triple with a 50-39-30 front ringset I believe the rear derailleur has medium cage and I have found that the bike sometimes slips gears when shifting have tried to re-index but get the same issue do I need to buy a Shimarno MTB reardealiure to use these ratios or will simply a Rear Derailleur Hanger Extender like the £5 one that SJS have fix the issue?
#askGCNTech Any idea why the latex didn't fill the hole in my GP5000tl? My bike and my back were covered with latex but I couldn't ride any further. It wasn't a big hole, about 2mm.
Dry silicone spray works great for cables!
If you ride in below 0 degrees Celsius temperature and if your cables are housed in such a way where water enters, then you should consider flushing your cables with wd-40 from time to time. Riding in sub zero temps with moisture in the housing can lead to cables freezing. This has happened to me a bunch of times, mostly on on my back brake. My solution was to order some cable oilers, fit them at about where a barrel adjuster would go, and periodically flush with wd-40. No stuck brakes and keeps them running well all Canadian winter long.
Do Not use wd40
#ASKGCNTECH Hey Jon, currently I’m using Shimano Ultegra R8000 RD, can I use 11 Speed Shimano MTB RD to use up to 34t cassette? Or even can I mix the shimano road and mtb components? Thanks!
#askGCNtech
Super annoyng problem here , when i pedal my chain gets thensioned and my rear diralieur gets pulled forwards , that causes my chain to skip or sommetimes to ghost shift , what do i do?(the chain it's new)
I always grease/lube both my brake cables (I'm using mechanical disc brakes) and shifter cables once or twice a month after cleaning
#AskGCNTech My road bike has an 10 speed Shimano cassette, but my new trainer came with an 11 speed Shimano cassette. I know they work together, but should I be replacing the 11 speed with a 10 speed to avoid damage to the chain?
Im using a shimano 105 R7000(latest) 11speed. My front derailler and chain keep rubbing with each other and sometimes the chain just falls off. The sound it makes is horrible when they rub. Please help me idk how to adjust the front derailler. Thanks. #askgcntech
I've got an Ultegra 6800 crank on my road bike. I recently came across a great (and legitimate) deal on a Stages Left crank power meter (due to a bike shop going out of business, always sad), but it's an Ultegra 8000. Is there any problem swapping my current left 6800 crank for the Stages 8000 crank? #AskGCNTech
AskGCN 2069: Should you replace your joints with graphibonramic bearings?
😂😂😂😂
#AskGCNTech Hi! I love the show. Will my Shimano Ultegra 6800 front and rear derailleur work properly with Ultegra R8000 or Shimano 105 R7000 shifters? Thank you
On a different subject, but still tech related, do you know if any frame manufacturers have looked into using Giga steel (now being used in the automotive industry)? It's much stronger and allegedly lighter than ordinary steel. I wonder if it's competitive with carbon or aluminum?
You can use Bones speed cream. Same we used in skateboard bearings
#askGCNTech Is there any chart to list all of the different brake lever pull ratio? Any how much will it affect braking performance?
would dry chain lube work well for cable lube? ... old cables
Hello can someone help me my back wheel is off centred and i check the wheel is still true. I open the back wheel then I put it back to the bike after washing. (I opened the hole skewers)
Can I use chain lube to lube the cables? Thank you
#askgcntech hi jon, ive got a cyclo cross but i seem to be having problems with the gears and they keep skipping. Its a 16 speed but i have crashed it a lot. Didnt know if that would have something to do with it.
Great question! You may well have poorly indexed gears in which case we have plenty of videos that show you how to index gears here's one 👉gcntech.co/index
If that doesn't work it might be that your derailleur hanger has been bent slightly due to all of your crashes! In which case it might be best to visit a local bike shop to find out how to straighten it or where to buy a new one!
Jon! Love the channel. My question, my rear hub has cartridge bearings and I noticed when I'd spin the wheel on the hub, the bearings didn't spin freely and felt tight and grinding, thinking they needed replacement, or regreasing I popped them out of the hub, and now the bearings spin freely when I rotate them with my fingers. What's going on? Is the interface of the outer bearing and the hub too tight? If I press them back in, are they just going to be too tight again? Thanks for your help!
Is the interface of the outer bearing and the hub too tight?
YES.
Try getting 'C3' designated bearings they have a slightly greater amount of play in them which is taken up by the interference fit compressing the outer race when you install them.
The 'C3' bearings are usually for high speed/temperature applications.
I had the same on a HOPE hub, now smooth as butter.
HTH
@@nigelnightmare4160 Thanks for the info. I decided to pull out the bearing seal and noticed that the grease was contaminated (black) so I flushed it out and regreased it. It was still smooth in my fingers, but reinstalling it, it was back to feeling grinding. Pulled it out and replaced it with a new bearing and everything feels smooth. I think pressing in the bearing just made it more obvious that the bearing was worn under compression.
When should you upgrade to a new derailleur
On another note regarding cables, I just pulled out the old EXTERNAL cable alu frame to build a cheap 1x7 commuter, and wow, I forgot how how much easier it is to work on! lol
You've got to love the ease of maintainence with external gear routing plus I bet a frame could be lighter and stiffer without the holes in it!
#askgcntech hello john and GCN crew, I'm getting loads of good information from the show and hats off to you good sir for the loads of information that you have. can I use automotive Marine Grease on bicycle bearings?
Kevin I'd be flabbergasted if it's suitable for wheel bearings
@@joeinglesfield7446 well is there a difference between automotive bearings and bicycle bearings. Other than the loads they have on them or other than being made of ceramic or coated in ceramic.
Morgan Blue is excellent. Even smells cleaner
#ASKGCNTECH can we fix the play on the wheelset bearing? How?
Cable lubers are same people who degrease new chain and then apply new "better" lube.
Do you consider that grease that comes on new Shimano chains to be a decent lube for riding? I would say that stuff is more appropriate for offshore oil rig applications or trapping gold in a sluice box.
@@estelja Riding Sram and you clearly watch too much Discovery/Nat Geo
@@Pienimusta SRAM Red here too. Even their lube is too dirt attracting. I just hit the chain a couple of times with WD-40, then brake cleaner, let dry, install and lube with Rock n Roll Gold. Works like a charm and stays clean as a whistle on road or MTB. Yeah, Gold Rush is a pretty good show too.
@@estelja Nothing you need too consider, but I regard the grease on a new chain mostly as a rust inhibitor, to be replaced/improved asap.. Rgr
#askGCNTech Hi, i have a bike with hydraulic brakes and aluminum handlebars. I want to replace handlebars for carbon ones and run brakes inside the bars. What is the proper procedure to do so? Should I drain the brake fluid first, install and reconnect everything, fill with mineral oil and bleed brakes? Is there any easier way around? Shortcut?
I'm afraid there probably aren't any shortcuts in your case!
1. Disconnect the hoses at the levers.
2. If SRAM hoses, unscrew the silver barb CCW and cut off 2mm from the end.
If Shimano, cut off the barb and olive as close to the end as possible.
3. Remove the flange nuts that no longer have the olive in the way.
4. Screw in Park Tool IR-1.2 to the end of the housing.
5. Pull IR-1.2 through the new bars.
6. Put the flange nut back on and install NEW Shimano or SRAM barb/olive.
7. Install levers onto new bars and hand tighten the flange bolt into levers before fully tightening.
8. Burp brakes.
Or take it to a shop and pay $100.
Also, remove the front wheel and pads first.
Add long nose ferrules and the matching rubber sockets as used on cross bikes
Keeps all the dirt out of your housing. Use slick cables, and don't add lube which attracts dirt
I'm putting in a vote for Shimano SIS-SP41 Shift Cable Grease. But probably not for ceramic bearings
#askGCNTech Hi Jon, I still see so many people discussing whether it is better to buy an aero or a lightweight bike. However, if I am not wrong, the only asset of aero bike is its shape, when the advantage of lightweight bike is just its weight. These two parameters do not go against each other and can be easily combined together. Or is there some other secret that differentiate these two types of bikes? I often see a brand offering a bike labeled as aero and another bike labeled as lightweight for the very similar price and surprisingly, when I look at parameters, there is nearly no difference in weight (eg. Canyon Aeroad vs. Ultimate). Thank you for clarifying this :)
True
Held op sokken🇳🇱😂
pre lubed cables (especially shimano) tend to fuzz up at the slightest of nicks or scratches. i would advise anyone to avoid them entirely, a decent polished set of stainless inners and a drop of dry lube from any brand gives you great performance and lasts years if you look after your bike properly :D
JON! Here's one for you: Can i run a Dura Ace 7800 drive-side crank with an XTR 960 non-drive side arm? (long story short- put the 7800 crank on my BMX bike [68mm BSA BB], but the non-drive side arm came precariously close to the chain stay.) Tried the XTR arm i had lying around, and it seemed to fit fine. Took it for a few rides, no problems so far. What do you think? #AskGCNTech
#askgcntch hey john, does a 28c tyre fit on a cx rim
Gonna wonder how much Lotto-Soudal benefits with the partnership, the Soudal products seems to do their job...
Screwfix's own brand No-Nonsense Degreaser is good- inexpensive and economical as you can pre-dilute it with water
#askGCNTech Will a 27.2 mm dia carbon seat post fit in my 1980s steel frame? The existing aluminum post is 26.8 mm, and it's a tight fit. Thanks in advance.
NO!
What tech problems do you need solving? Comment below using the hashtag #askGCNTech!
Calculating spoke length for wheel building
#askGCNTech Possible Video Idea: Building a Di2 bike for the spousal unit - could use a *more in-depth & detailed* video on all the permutations, including the upgrades (e.g. new batteries), wire lengths vs internal/external & frame size, extra buttons and commensurate Junction box/port req'ts. Add a few spreadsheets for equipment, wire lengths, etc. for reference. Have seen prior vids. PS Great work, Jon.
#askGCNTech Hi Jon. I unfortunately had a crash on my good summer bike a few months ago which left me unable to ride for a couple of months. I have come back in the winter on my older 10 speed shimano geared bike. As my summer bike has suffered some bad scuffing to the Sram Rival 22 brake levers I am considering replacing these to get the bike looking perfect again. I would then use the scruffed shifters as the heart of a new11 speed groupset for my winter bike but can I use a 10 speed shimano chainset with a SRAM 11 speed chain and derailleur? The 10speed chainset is only a few months old and so in very good condition. Thanks in advance.
Can you use a lower tier groupset when you use a crank based powermeter? For example, I got a crank based powermeter that is made for 105/Ultegra/Dura-Ace but I only got lower tier groupsets on my bike. #askGCNTech
#AskGCNTech Jon, maybe you had this question before, so I apologize. I have Shimano 105 5700 groupset with 50/34 and 11/28. I would like have a better ratio for climbing. What would be the most cost effective change for me? A wider cassette or a smaller chainring? Are there any compatible parts with this old groupset that could give me a ratio close 1-1.05? Thank you!
would suggest a 11/34
#askgcntech hi guys! Huge fan over here! My road bike has a shimano 105 R7000 groupset, i always keep the chain on the biggest gear at the front. Is this a stupid thing to do? All the gears work great but when i’m driving with the smallest gear at the front it feels like i’m cycling at 500 rpm and i’m not getting the same results in speed and muscle fatigue.
PS: my girlfriend never watches the show but everytime i’m watching she responds with: That that John from your cycling show! Love that response.
I find the muc-off drivechain cleaner gets through chain lube very effectively, but maybe Simone has already tried that.
Love Muc-Off products!
Held op sokken means hero on socks.. it's a Dutch thing🇳🇱
Awesome! Thanks for letting us know
@@gcntech it actually means: someone who pretends to be brave/tough, but isn't...
Can i make my steam bend to -17 degree but hitting it with a hammer for cheap cost.
No, you most definitely cannot
What about graphite grease?
I tried lubricating my di2 cables, didnt help with my shifting....
Nutter!
Is this a rich joke im to peasant to understand
I've used Diesel for cleaning the worst of the gunk on my bike for 30 years now. Ain't gonna stop.
no need for petrol for removing old wax lubricant, just hot water!
Never thought of this, but yeah it should work!
Yes !
Or heat the chain in an oven (in an appropriate tin of course).
There is a cheap cable lubricator tool you can buy instead of struggling trying to spray stuff down you cable. Flush with wd40, apply new lube.
Hey Jon..how about a live tech clinic ??
Nah , they probably give better answers in recorded videos
5:02 only changing to 28 teeth for climbing? why not 32 or 34?
The most common reason is people are too proud to admit they need more than a 28 and would rather tackle a 12% gradient at 65rpm but also, in this case, he would need a longer derailleur cage or a hanger link to accommodate it
For myself, I signed up for a fondo for this coming year with about 5000m climbing. I'm definitely talking with my LBS about what is the biggest cassette I can put on my bike
@@ChrisCapoccia Good idea, the way it should be done rather than struggling. It's not really a problem using a 28T per se, but when you get tired and can no longer produce that power, then you need a bailout. I've never done it but you can get all sorts of easy gearing if you use a derailleur link, 36+
@@SD1266 - Shimano are pretty conservative with their tooth capacities. You should be able to run a 30 with a 105 short cage without any problems (I tried it on someones bike over the Christmas period and it worked without any adjustment). I have 105 medium cage on my bikes with a 32, and I'm going for a 34 this summer.
@@terryshaw1792 yeah, true. I think I heard people even running a 32 with a short cage, even if you have to wind in the b-screw all the way or even get a longer one. Think a 34 is the max recommended for a medium but the same hack can be used too
2:00 about the video title is here.
@GCN Tech... just looking at the Whimis info for Morgan Blue Chain Cleaner. It contains Fattyalcohol C10 -14, ethoxylated, as well as 2-butoxyethanol and Naphta heavy (low boiling point hydrogen treated). The 2-butoxyethanol is on "schedule 1" of Canada's Toxic substances list. For that reason, I wouldn't recommend it as it will kill you quicker eating than a plant-based diet.
Held op sokken. Actually means hero on socks in dutch
You want wax on a chain to come off? Just add a little oil on it, go for a long ride and wipe it off. Job done.
Does anyone else use Simple Green as a degreaser? Cheap and works great for me.
Morgan Blue chain cleaner is kerosene with blue dye.
#askGCNTech! Why hasn't Shimano , or some other enterprising 3rd party, programmed a fully-automatic gear system for their Di2? Surely with Ant+ / Bluetooth they could use the cadence sensor to change gear? Have a user set point and deadband, I would use 85 +/- 4 so that going up a slope, at 80rpm the gear would change down, and once over the top it would change up at 90rpm. You never have to worry about changing gear again. One button could then be used to go into manual mode - bit like the Tip-tronic system, in case you need to go into synchronous mode for some reason. Any reason why that wouldn't work? If not could you please arrange it.
Hi Manfred - great idea. Automatic gears are definitely something that have been looked into before. We covered it in a video a few years ago gcn.eu/2Li . Thanks for watching!
Looking on my SRAM AXS. I can’t find my cables to grease 😏
Haha
I ran into this issue at the shop. Park Tool actually sells a nice wireless grease that I've had good results with. WG-1
Soaked my shifter & brake cables in motor oil then put them thru full length cable housing. Been silky smooth and great for 3yrs on the same cable set. I have inspected them for dirt and grime but they are still pretty new looking.
"It's a bike, ride it. Quit being so anal about it."
Jizer! 🤣🤣🤣🤣
Be carefull mixing with GRX because the front derailleur and the front crank needs to be GRX only, all the others components can be mixed but I repeat myself: GRX crank will work only with grx derailleur.
Can I ask a Penultimate question?
Remove chain wax with boiling water. Hold the chain in an old collander.
Just what I was thinking. oz cycle demonstrated it in his "Ultimate Chain wax - make it yourself" video.
@@steve.b.23 Indeed. My only question is whether it works on wax based products that aren't pure wax. Worth a try though as can't damage anything.
I’ve seen Oz Cycle recommend Petrol for degreasing. Otherwise he has some good ideas .
Please go visit Campagnolo and share information on their products -- they are just so good!
The þ in Eþan’s name is thorn and is pronounced “th” - I think it needs to come back into the English language.
Am I the only one who uses engine synthetic oil to lube brake cables and housings?
"The best degreasers are petrol and diesel... but they're bad for the environment and bad for you so I wouldn't recommend them"
Errr... you just did 👍
No, just because something is the best, doesn't mean it's recommended.
@@JonCannings it's not the first time you've mentioned it, you're putting ideas in people's head dude.
Petrol & diesel don't degrease.
They liquify & disperse it but there is still an oily residue.
Clean a super grimy chain with aerosol automotive brake cleaner.
You are wrong. You can't mix all components of GRX & Ultegra. The chainline differs by 2.5 mm so you can't use GRX front mech with any other crankset than GRX. If you are using standard road crankset (of any brand) you need to use Ultegra front mech
1,000th like!
It looks like his tools were never used lol
11-25 to 11-28
it can be done without adding two more link
just make sure you dont large - large extreme gear
or you should try it out first and see the chain is long enough already
If the wax lube really IS wax then just pour a kettle of boiling water on it. melts away!
How about more fixie bikes?
outta cables.................it"s called brake and gear housing !!!!!!!
Or outer cable.;-)
Sorry, but using diesel or petrol to clean the chain is not harmful for the environment. Not more harmful than riding a car that is. Of course provided you dispose the fluid correctly afterwards and do not use your kitchen sink for it.
Ceramic bearings are silly.
Why spend a fortune trying to save something FAR short of one watt?
Seriously, one watt is equal to one newton. 1N= 1kg*m/s²..
Think about that for a while.
The force required to accellerate 1KG 1METER in a Square second.
You're NOT saving one watt when it doesn't even take 0.1 watt to spin the crank arm with a regular bearing.
I MIGHT accept that waxing your chain saves you one watt compared to a dirty one, but that's it.
Now there ARE reasons to choose ceramic bearings, and those reasons are if you are part of a team that has a dedicated mechanic that dissasembles your bearings and clean them and replace the lube after every ride, then the life time warranty is actually valid, other than that you're just buying something that you are not going to take care of like the manufacturer recomends, and warranty claims will be denied, making you look like a fool.
Ceramic bearings last your entire life if maintained after every ride, you lot will not do this.
But it's not my money, in fact i urge you to buy everything you can, maby one day i will come across a cheap tricked out bike because one of you made too many poor decicions.
Second
Wd 40 eats plastic at long term
Don’t use it on plastic parts
"ji-zer", nah mate its "jiz-er", (school boy giggle...)
Gasoline is a great degreaser. There is no enviromental impact of using 10 oz of gasoline and draining it in your yard the petrochemicals breakdown by bacteria over time.
Jon makes his own "Jizer" lube at home. The recipe can be found on PENterISt.
On greasing cables: Shimano actually recommends that you DO grease the your shifter cables at the lever, and sell a grease specifically for this purpose: Google SIS SP41 Shift Cable Grease
Non-chlorinated brake parts cleaner. Why isn't that mentioned for degreasing? It will eat through any grease/wax on a bike and won't damage any of the materials