Hi, this one is specifically for Ollie. When you built your Cannondale hill climb bike you put in C Bear bearings. After you mentioned that you'd had problems with creaky bottom brackets. Was this from the C Bear BB or the original Cannondale/SRAM BB30 model? Thanks
I have finally succumbed to peer pressure, call it marketing hype, call it yet another conspiracy by the bike industry, but I have thrown my hat in... Gravel. Going to build gravel bike. Question I have, why are gravel wheels seem to be shallow in depth, mostly less than 40mm.
Dear Dr Bridgewood, I've always wondered why sugar and washing-up liquid is so effective in cleaning bike grease off one's hands. Can you enlighten me please? #AskGCNTech
I found this video to be the easiest to watch in a long time. Why? It was one pleasant, friendly, mature-acting person taking questions and giving straight-forward, helpful answers. Thanks, Ollie.
yup, that was what I was about to say. It all depends on the sticker glue and paint composition, but the heat-gun (or a hair dryer) has worked well for me. over use of solvents may weaken your gel coat. I always rinse after using them.
seb berg huge difference from a hair dryer to a heat gun The heat gun produces enough heat to strip paint or damage rubber compounds. So be very careful.
Forgive my ignorance, but are these wheels carbon? If so, acetone may disolve or soften the material holding the wheels together causing it to fail. Likewise, be careful of the heat.
Please note, Campy 10,11 and 12 speed all use the same hubs. No problems. Any modern Campy wheel will work with ten speed, just put the cassette on and go.
Hey Italo, Your 10 speed Campy cassette should fit any modern Campy freehub body. I recently upgraded my 10 speed Campy Daytona groupset to Chorus 12 speed and the cassette was a straight swap. The freehub is the same for 9, 10, 11, and 12 speed Campy cassettes.
Thank you! I’m mostly trying to fit a pair of Enve sea 4.5. I have already ab Enve cockpit and seat post, so I thought I would complete the upgrade with the wheelset.
I’ve been a sign writer for longer than I care to remember, in fact longer than I can remember (I think 30 years 🤔)...the hair drier suggestion for warming the decals is a great one...I personally use a wallpaper steamer to remove vinyl livery, but a hair drier for small decals is perfect...to remove the adhesive Autosmart have a product called Tardis which is a glue and tar remover...hope this helps.
Regarding the decal removal: WD-40, Si’s weapon of choice, or similar, bike-specific products like MO-94 work wonders. Let it sit for a couple of minutes and the oil will solve the oil-based glue of the decals. Just make sure to thoroughly clean your wheel afterwards, especially if you use rim brakes. Isopropyl alcohol works for that and removes all oil and residue
The easiest way to remove the stickers from the ALUMINUM WHEEL ONLY is using a flat wooden toothpick and a hair dryer. The sticker glue is chemical and water resistant, but not heat resistant. This job is ZEN training, but it's worth it. Use a dryer on a low temperature to heat the first 3-5 cm / 1-2 inch of the stickers and gently pry an even fragment with a toothpick, it must be the entire beginning, even. Then we blow warm air from a distance of about 10cm / 3in and slowly pull the sticker upwards at a 90 degree. It can't be too warm, it can't be too fast. If there is glue on the rim, it is too hot and you need to move the dryer slightly away. If there is too much glue, it means that the sticker is torn off too quickly. The remnants of the glue can be removed with acetone or a liquid to remove the sticker from car windows - the shit that in some countries have to stick to the windshield of the car :) IMPORTANT: Be careful of overheating, the rim must not burn your hands, it should be pleasantly warm. !!! DO NOT USE THIS METHOD WITH CARBON RIMS !!! The tire will last a lot, but I recommend taking it off while cleaning. Cheers!
I used hairdryer but acetone struggled to remove glue residue.... Enter WD40!! There is literally nothing it can't do. Sprayed WD40 on glue residue, left for about a minute then wiped off. Might need to spray stubborn areas a couple of times but it works for sure 😁
To remove stickers and any remaining residue. Remove wheels from bicycle and let the summer sun heat each side of the wheels for a bit then peel away stickers. Any remaining residue can be removed with a clean soft rag and lighter fluid. This doesn't harm paint, plastic, or rubber. Doesn't work in the U.K....no sun.
Shame on you. Wrong answer regarding the Campagnolo 10 and 11 speed cassettes, no spacer there that only applies to Shimano. Campagnolo freehubs are the same and work for 9, 10, 11 and 12 speed. The cassettes are different but the freehub is exactly the same...
Yes. Campagnolo are much nicer than Shimano as they don't deliberately make all of your old kit obsolete as often. However, this raises the point that you can run a 11-speed set up on your existing wheels if you still like them, so you can save money on that?
So this was my experience with removing the horrific lurid decals from my Mavic Cosmic Wheels: 1. Hairdryer is perfect BUT when you peel off the decal pull firmly and fast. The first wheel I was over-cautious and all the glue stayed on the rim. Second wheel with the recommended approach I had zero glue remaining. 2. To remove glue left on the rim I tried the method In the comments using acetone. This was a complete pain consuming a lot of time and acetone. 3. As a better way to remove glue from the rim I just used my thumb to rub the glue off. This might not suit everyone I guess depending on the strength of your thumb and how tough your skin is but for me it was much more effective and time efficient than using acetone. 4. As a final touch I used some automotive black bumper treatment to bring back the colour as the wheels are a couple of years old. I am super happy with the result which has improved and updated the look of my 2016 Cervelo R5 no end. Good luck 👍
1:57 the best numbers I've seen for derailleur gears is 98% efficiency, the best I've seen for internal gears were in the 80% range. Every other shortcoming could easily be sorted like putting the gears in the bottom bracket rather than the hub which would make wheel changes easier and quicker if anything.
I used Look pedals for 20 years, but could never eliminate the squeek! I finally switched to Shimano SPD-SL 2 years ago and have been enjoying the silence ever since!
Today I removed my decals off of my Zipp 808 Firecrest which are about 12 years old. I used a heat gun and goo gone. Pretty easy process. I recommend using an elevated surface unlike what I did, on the ground.
@6:47 Some retaining rings are, in effect, hollow allen bolts (mine is, at least). If this applies to you, there’s often a 10mm allen retaining ’bolt’ and an 8mm allen extractor bolt underneath it. Sizes may vary but the idea remains the same: keep the 10mm ’bolt’ fully threaded in, pass the 8mm allen key through the 10mm hole and undo the 8mm allen bolt. As the 8mm bolt unwinds, it is ’stopped’ by the 10mm allen retaining bolt/ring and further unwinding pushes the crank out.
One notable difference I’ve found between Shimano and Look is in range of release tension. Looks seem to go lower than Shimano which can benefit shorter or lighter riders.
I would NOT recommend acetone for removing decals. The risk of dissolving paint or even the resin in the composite material is far to big. On unpainted metal - No problem but never on anything painted or composite. Go with isopropylene (isopropyl alkohol) instead.
#AskGCNTech I've just upgraded my groupset to SRAM Force AXS etap. I have the Park Tool CT-3.2 chain tool but apparently I need the CT-3.3 to break the SRAM 12 speed chain. What's the difference? The rollers on the AXS chain appear to be larger and don't fit in the 3.2 floating shelf. Can't I just modify the tool with a mini rotary grinder so that it accepts the larger rollers?
hi i have really bad lower back problems when ever i push hard for more than 10-15 minutes but I'm not sure if its my bike (wrong fit) or just a really bad back! thanks
Been riding FSA cranks since 2013 and I have never had an issue with self extracting bolts. I did get a new bike with Ultegra cranks last summer and it seems like three or four bolts must be undone to get the crank off... How is this better?
Hi GCN Team, my girlfriend is always struggeling with fitting her long hair under her helmet. Riding with a low sitting ponytail or her hair unbound is not her thing. Which helmet leaves space for a ponytail? Can Manon help? #AskGCNTech
I'm looking for some new wheels... The vision metrons look great, but for me, there to many stickers on them... You guys allready have ridden those wheels, can you remove them? Thx dudes!! Grtz from Belgium
#AskGCNTech I just bought a new Cannondale Supersix Evo with a Force AXS groupset. I love it. The only thing I dont like are the slightly outdated Hollowgram 35 wheels. Their internal width is only 19mm, the outer width is 25. Can I put 28mm tubeless tires on there or am I going to ruin aerodynamics? Should I stick to 25mm?
#askgcntech hi, I have two questions. First, I have a wheel for my trainer with 11-25 tooth cassette. Can I use this wheel with grx derailleur? In Shimano site specified min low spracket is 32? Second question, can I mix tiagra 4700 shifter with ultegra r8000 rear derailleur? I know Shimano do not recommend this, but I have read they both have the same pull ratio and some people report success having tiagra shifter with ultegra rear mech work together.
Every time anyone asks why do/don't we use whatever, the answer is always... It's said that there's less friction/wind resistance using this. NEVER are any numbers quoted, which could be easily tested. You're usually better outside testing but...
#AskGCNTech Hi GCN! Thinking of going tubeless for my race wheels. But what would be the proper way to store them during off season? Is there a need to take off the tires and clean out the sealant? Or can it be left as is over a few months? Thanks!
Do Di2 batteries require a break-in period? When I first started using my new Ultegra Di2 equipped Ribble, it seemed like I would use about 20% of the battery on every 30 or so mile ride, based on the display on my Garmin head unit. After a few months of riding however, the battery has stayed at fully charged for the last 4 rides. I was wondering if this is a matter of conditioning the battery, or is it just a quirk?
Not sure what battery chemistry they use. However, I do not know of any that require a break-in period. Possibly they measure the battery voltage assuming one chemistry when it actually another leading to erroneous results. Perhaps someone with specific experience will respond with a better/ correct answer.
#AskGCNTech, I have a classic steel frame that I would like to upgrade the bottom bracket and crank set to hollowtech. The threading is Italian. Is this a possibility?
This could be a very silly question, but is there any way to tell if a certain crankset will fit? I have a Cervelo with a BBRight bottom bracket. It currently has a non-series Shimano crankset in there. Could I upgrade it to, say, an Ultegra R8000 crankset, or would I need something specific? Bottom brackets confuse me man! #AskGCNTech
To be sure, you will need to check you frame dimensions versus the specs for each groupset on the Shimano website. A mechanic installed a 9-speed Deore on my hybrid flat-bar frame, and it works but a little wonky.
#AskGCNTech Hello! Thanx for the best cycling show of all time! This is my third try to get an answer ))) What kind of upgrades and/or adjustments i can make to my bike to feel less pain in my lower back? Thanks! All the best!
@@paulhiggins6024 thanx for reply but i already know about it =) i've got pretty well trained core muscles, I teach rock climbing ;) I've got spinal hernia and no matter how trained i am, it still bothers me on my cycling days, i wish i could minimise this discomfort at least a bit....
#askGCNTech I am about to upgrade my Tiagra R4700 to a 105 R7000 groupset. While I was shopping online for the groupset, I have found out that it never includes the bottom bracket. Will I be able to install the 105 cranks? Is there a reason to upgrade the bb? If yes what model should I look for?
No need for bottom bracket, both cranksets are the same style (hallowtech II) . You can even keep the tiagra crankset on there as it will work fine with 11 speed.
Cranksets are same type so no need for new BB. Of all groupset components biggest weigh difference between 105 and Tiagra comes with crankset - 200+ grams, if I am not wrong
The website calls out a different bottom bracket for the Tiagra than the 105. Might just be an upgrade, but hard to say. You can try it and get the correct one for the 105 if you have problems.
To help remove decals on your wheels try using a hair dryer first. Most of them are vinyl and the heat will help peel them away then use acetone to get the glue off. Save yourself a lot of elbow grease this way 😘
Yep. WD40 works well for removing sticker glue. I’ve used that a lot for those times a price tag or some sticker won’t come off something I just bought.
@@chuckmccracken4136 Seriously???, you actually think that a "water displacement" (WD) and the 40 comes from the 40th attempt at the oily solution...... Would "affect" any carbon materials???? Come on.... I mean, carbon rims can handle Alpine decents....., they can handle Hard Knot pass where I live.....(that is a 25% switch back)..... And you question whether an oily substance will brake carbon...... 🙄
@@andystone5487 Yes, seriously. The carbon fiber only strengthens the underlying epoxy. Epoxy like any other material is susceptible to being attacked or dissolved by chemical solvents. I looked up the MSDS for WD-40, and it lists "Aliphatic Hydrocarbon" and "Petroleum Based Oil" among the ingredients. Not being an organic chemist, I can only speculate. Perhaps #askgcntech a PhD organic chemist on staff at GCN (yes you Ollie) could give us a definitive answer?
#AskGCNtech Great show, always enjoy watching and learning form it. I find myself a 2004 pinarello marvel frame, it has a semi-vertical dropout and adjustment screw. Would it be possible to run it in single speed without using the chain tensioner? Cheers
@@chuckmccracken4136 nice, I've already plan on using the half-link chain, but the length of the drop out where the axle sits isn't long(around 20mm), and its pointing in 45° rather than horizontal, that's where I concern the most. Thanks for answering 👍🏻
How do I add a Jon to my GCN tech show? :'( 2:00 that's actually not true 100%. The Rohloff 18 speed hub has less rolling resistance than the best groupsets out there in certain gears. Look it up, it's true. CYCLINGABOUT made a video on the 2020 Kona Worldtraveller-S.
It’s Pinion that makes the massive 18 speed bottom bracket gearbox, Rohloff make the most efficient hub gear. As a cycletourist, I’m very happy with a Rohloff. If you used it for cyclocross or CC mtbing, it would be fine when there’s gravel in wet clay, but you’d want derailleurs for cleaner surfaces. Would you want to turn up for races with two bike and wheel systems, or keep to one type?
don't even need to ask them, yes. Almost all good bikes are made in Taiwan, pinkbike has lots of articles on it. There is a pic somewhere of Scott and Trek frames being boxed up for shipping in a Giant factory. Lower end stuff even shares molds and carbon stock for some parts (think Addict/Defy/Emonda). I think they also determined Giant was making the lower end Colnago stuff too.
What tech problems do you want to share with us? Let us know 👇
Hi, this one is specifically for Ollie. When you built your Cannondale hill climb bike you put in C Bear bearings. After you mentioned that you'd had problems with creaky bottom brackets. Was this from the C Bear BB or the original Cannondale/SRAM BB30 model? Thanks
#AskGCNTech What are all of the good ways to protect the carbon on rim brake carbon fiber wheels?
Bring back John ,Ollie is great but no one can beat John☺
I have finally succumbed to peer pressure, call it marketing hype, call it yet another conspiracy by the bike industry, but I have thrown my hat in... Gravel. Going to build gravel bike. Question I have, why are gravel wheels seem to be shallow in depth, mostly less than 40mm.
Dear Dr Bridgewood, I've always wondered why sugar and washing-up liquid is so effective in cleaning bike grease off one's hands. Can you enlighten me please? #AskGCNTech
Title question at 5:29
doublee10 Mine!!
YES - a very misleading title - thanks for this...!
Thanks!
Big time saved, thanks
I found this video to be the easiest to watch in a long time. Why? It was one pleasant, friendly, mature-acting person taking questions and giving straight-forward, helpful answers. Thanks, Ollie.
There’s a combination spanner missing off the tool wall behind you (over Ollies left shoulder), sort it out please..
Jon took it !
Yes! It’s being nicked by someone with grubby little hands.
I read your comment,now I can't stop looking at that empty spot
Decal removal tip: Use a heat gun or hair dryer to warm the decals before and while removing them. More glue will stay on the decals.
A hair dryer will soften up a lot of decal glue so that it peels off. Use the acetone to finish the job.
yup, that was what I was about to say. It all depends on the sticker glue and paint composition, but the heat-gun (or a hair dryer) has worked well for me. over use of solvents may weaken your gel coat. I always rinse after using them.
seb berg huge difference from a hair dryer to a heat gun
The heat gun produces enough heat to strip paint or damage rubber compounds. So be very careful.
@@brianbuday8639 i know, for that sort of thing its on the lowest setting, which is fairly "hair dryerish" haha
Yep, hairdryer, peel and rubbed the rest off and done. No chemicals needed.
Forgive my ignorance, but are these wheels carbon? If so, acetone may disolve or soften the material holding the wheels together causing it to fail. Likewise, be careful of the heat.
Please note, Campy 10,11 and 12 speed all use the same hubs. No problems. Any modern Campy wheel will work with ten speed, just put the cassette on and go.
Hey Italo,
Your 10 speed Campy cassette should fit any modern Campy freehub body. I recently upgraded my 10 speed Campy Daytona groupset to Chorus 12 speed and the cassette was a straight swap. The freehub is the same for 9, 10, 11, and 12 speed Campy cassettes.
Thank you! I’m mostly trying to fit a pair of Enve sea 4.5. I have already ab Enve cockpit and seat post, so I thought I would complete the upgrade with the wheelset.
I’ve been a sign writer for longer than I care to remember, in fact longer than I can remember (I think 30 years 🤔)...the hair drier suggestion for warming the decals is a great one...I personally use a wallpaper steamer to remove vinyl livery, but a hair drier for small decals is perfect...to remove the adhesive Autosmart have a product called Tardis which is a glue and tar remover...hope this helps.
Regarding the decal removal: WD-40, Si’s weapon of choice, or similar, bike-specific products like MO-94 work wonders. Let it sit for a couple of minutes and the oil will solve the oil-based glue of the decals. Just make sure to thoroughly clean your wheel afterwards, especially if you use rim brakes. Isopropyl alcohol works for that and removes all oil and residue
The easiest way to remove the stickers from the ALUMINUM WHEEL ONLY is using a flat wooden toothpick and a hair dryer. The sticker glue is chemical and water resistant, but not heat resistant. This job is ZEN training, but it's worth it. Use a dryer on a low temperature to heat the first 3-5 cm / 1-2 inch of the stickers and gently pry an even fragment with a toothpick, it must be the entire beginning, even. Then we blow warm air from a distance of about 10cm / 3in and slowly pull the sticker upwards at a 90 degree. It can't be too warm, it can't be too fast. If there is glue on the rim, it is too hot and you need to move the dryer slightly away. If there is too much glue, it means that the sticker is torn off too quickly. The remnants of the glue can be removed with acetone or a liquid to remove the sticker from car windows - the shit that in some countries have to stick to the windshield of the car :) IMPORTANT: Be careful of overheating, the rim must not burn your hands, it should be pleasantly warm. !!! DO NOT USE THIS METHOD WITH CARBON RIMS !!! The tire will last a lot, but I recommend taking it off while cleaning. Cheers!
Definitely use a hair dryer to heat and soft up the glue of the decals and just use the acetone to remove the rest of the glue.
I used hairdryer but acetone struggled to remove glue residue.... Enter WD40!! There is literally nothing it can't do. Sprayed WD40 on glue residue, left for about a minute then wiped off. Might need to spray stubborn areas a couple of times but it works for sure 😁
To remove stickers and any remaining residue. Remove wheels from bicycle and let the summer sun heat each side of the wheels for a bit then peel away stickers. Any remaining residue can be removed with a clean soft rag and lighter fluid. This doesn't harm paint, plastic, or rubber. Doesn't work in the U.K....no sun.
I’ll give it go here in Brazil 🇧🇷😉
Shame on you. Wrong answer regarding the Campagnolo 10 and 11 speed cassettes, no spacer there that only applies to Shimano. Campagnolo freehubs are the same and work for 9, 10, 11 and 12 speed. The cassettes are different but the freehub is exactly the same...
Some experience talkin' here.
Thanks!
Saved me from writing basically the same reply
That's why we miss John!😁
Yes. Campagnolo are much nicer than Shimano as they don't deliberately make all of your old kit obsolete as often. However, this raises the point that you can run a 11-speed set up on your existing wheels if you still like them, so you can save money on that?
So this was my experience with removing the horrific lurid decals from my Mavic Cosmic Wheels:
1. Hairdryer is perfect BUT when you peel off the decal pull firmly and fast. The first wheel I was over-cautious and all the glue stayed on the rim. Second wheel with the recommended approach I had zero glue remaining.
2. To remove glue left on the rim I tried the method In the comments using acetone. This was a complete pain consuming a lot of time and acetone.
3. As a better way to remove glue from the rim I just used my thumb to rub the glue off. This might not suit everyone I guess depending on the strength of your thumb and how tough your skin is but for me it was much more effective and time efficient than using acetone.
4. As a final touch I used some automotive black bumper treatment to bring back the colour as the wheels are a couple of years old.
I am super happy with the result which has improved and updated the look of my 2016 Cervelo R5 no end.
Good luck 👍
oliver i was surprised and shocked to see you where in the film DAS BOOT as a german photographer !!!!
For real?
@@oreocarlton3343 no, not for real. That film is at least three decades old :) But he resembles the character.
1:57 the best numbers I've seen for derailleur gears is 98% efficiency, the best I've seen for internal gears were in the 80% range.
Every other shortcoming could easily be sorted like putting the gears in the bottom bracket rather than the hub which would make wheel changes easier and quicker if anything.
Depends on the hub. Rohloff Speedhub is around 2% behind derailleur systems (see www.cyclingabout.com/speed-difference-testing-gearbox-systems/).
Is there a link to the video John did removing decals from wheels? I can't find it...
I used Look pedals for 20 years, but could never eliminate the squeek! I finally switched to Shimano SPD-SL 2 years ago and have been enjoying the silence ever since!
WD40. Sorted
Today I removed my decals off of my Zipp 808 Firecrest which are about 12 years old. I used a heat gun and goo gone. Pretty easy process. I recommend using an elevated surface unlike what I did, on the ground.
@6:47 Some retaining rings are, in effect, hollow allen bolts (mine is, at least). If this applies to you, there’s often a 10mm allen retaining ’bolt’ and an 8mm allen extractor bolt underneath it. Sizes may vary but the idea remains the same: keep the 10mm ’bolt’ fully threaded in, pass the 8mm allen key through the 10mm hole and undo the 8mm allen bolt. As the 8mm bolt unwinds, it is ’stopped’ by the 10mm allen retaining bolt/ring and further unwinding pushes the crank out.
Bring Back Jon
Sigh, I like Ollie, but I miss Jon as well.
Not only tech clinic but I used to like bike tour with John talking about equipment and new wearables
One notable difference I’ve found between Shimano and Look is in range of release tension. Looks seem to go lower than Shimano which can benefit shorter or lighter riders.
A new bottom bracket standard BBJ. Or Bring Back Jon
How can you add new decals to road bikes? Also where do you buy them?
My usual online retailer doesn't do Elbow grease....is there an alternative? ;)
They might do blood, sweat and tears but it's more expensive in my experience 🤭🥳
I would NOT recommend acetone for removing decals. The risk of dissolving paint or even the resin in the composite material is far to big. On unpainted metal - No problem but never on anything painted or composite. Go with isopropylene (isopropyl alkohol) instead.
Hair drier and goo gone worked for me.
If stack height and aero are important, then you should evaluate speedplay pedals
Where is Manon ? I like Ollie he is great but ........
Can a single mount brake calipers be converted into direct mount by removing the furthest back parts of the brake calipers?
Acetone can damage paint- beware on a painted wheel
Steve Hambley hey Steve 😀
How faster would it be by changing from a 50 Chain ring &a172:5 2 a52 ring ,on 175 crank with everything else been the same
#AskGCNTech I've just upgraded my groupset to SRAM Force AXS etap. I have the Park Tool CT-3.2 chain tool but apparently I need the CT-3.3 to break the SRAM 12 speed chain. What's the difference? The rollers on the AXS chain appear to be larger and don't fit in the 3.2 floating shelf. Can't I just modify the tool with a mini rotary grinder so that it accepts the larger rollers?
hi i have really bad lower back problems when ever i push hard for more than 10-15 minutes but I'm not sure if its my bike (wrong fit) or just a really bad back! thanks
Been riding FSA cranks since 2013 and I have never had an issue with self extracting bolts. I did get a new bike with Ultegra cranks last summer and it seems like three or four bolts must be undone to get the crank off... How is this better?
Hi GCN Team, my girlfriend is always struggeling with fitting her long hair under her helmet. Riding with a low sitting ponytail or her hair unbound is not her thing. Which helmet leaves space for a ponytail? Can Manon help? #AskGCNTech
I'm looking for some new wheels... The vision metrons look great, but for me, there to many stickers on them... You guys allready have ridden those wheels, can you remove them? Thx dudes!! Grtz from Belgium
#AskGCNTech I just bought a new Cannondale Supersix Evo with a Force AXS groupset. I love it. The only thing I dont like are the slightly outdated Hollowgram 35 wheels. Their internal width is only 19mm, the outer width is 25. Can I put 28mm tubeless tires on there or am I going to ruin aerodynamics? Should I stick to 25mm?
#askgcntech hi, I have two questions.
First, I have a wheel for my trainer with 11-25 tooth cassette. Can I use this wheel with grx derailleur? In Shimano site specified min low spracket is 32?
Second question, can I mix tiagra 4700 shifter with ultegra r8000 rear derailleur? I know Shimano do not recommend this, but I have read they both have the same pull ratio and some people report success having tiagra shifter with ultegra rear mech work together.
I used a heating gun (or hair dryer would work) and then a small putty knife to remove the decal. Then goo gone to remove the residue.
@3:31 don’t do a “blind test”, it won’t end well. 😉
What pegboard are you using in the background? LocBoard? Keep up the great work!
Every time anyone asks why do/don't we use whatever, the answer is always... It's said that there's less friction/wind resistance using this.
NEVER are any numbers quoted, which could be easily tested.
You're usually better outside testing but...
#AskGCNTech Hi GCN! Thinking of going tubeless for my race wheels. But what would be the proper way to store them during off season? Is there a need to take off the tires and clean out the sealant? Or can it be left as is over a few months? Thanks!
Do Di2 batteries require a break-in period? When I first started using my new Ultegra Di2 equipped Ribble, it seemed like I would use about 20% of the battery on every 30 or so mile ride, based on the display on my Garmin head unit. After a few months of riding however, the battery has stayed at fully charged for the last 4 rides. I was wondering if this is a matter of conditioning the battery, or is it just a quirk?
Not sure what battery chemistry they use. However, I do not know of any that require a break-in period. Possibly they measure the battery voltage assuming one chemistry when it actually another leading to erroneous results. Perhaps someone with specific experience will respond with a better/ correct answer.
Love that ‘save the rim brake’ sticker🤘🏻 Where can I get that please?
#AskGCNTech, I have a classic steel frame that I would like to upgrade the bottom bracket and crank set to hollowtech. The threading is Italian. Is this a possibility?
best way to remove old campagnolo bora decals???
This could be a very silly question, but is there any way to tell if a certain crankset will fit? I have a Cervelo with a BBRight bottom bracket. It currently has a non-series Shimano crankset in there. Could I upgrade it to, say, an Ultegra R8000 crankset, or would I need something specific?
Bottom brackets confuse me man! #AskGCNTech
To be sure, you will need to check you frame dimensions versus the specs for each groupset on the Shimano website. A mechanic installed a 9-speed Deore on my hybrid flat-bar frame, and it works but a little wonky.
5:48 I can't find this video.
#AskGCNTech Hello! Thanx for the best cycling show of all time! This is my third try to get an answer )))
What kind of upgrades and/or adjustments i can make to my bike to feel less pain in my lower back? Thanks! All the best!
@@paulhiggins6024 thanx for reply but i already know about it =) i've got pretty well trained core muscles, I teach rock climbing ;) I've got spinal hernia and no matter how trained i am, it still bothers me on my cycling days, i wish i could minimise this discomfort at least a bit....
#askGCNTech
I am about to upgrade my Tiagra R4700 to a 105 R7000 groupset. While I was shopping online for the groupset, I have found out that it never includes the bottom bracket. Will I be able to install the 105 cranks? Is there a reason to upgrade the bb? If yes what model should I look for?
No need for bottom bracket, both cranksets are the same style (hallowtech II) . You can even keep the tiagra crankset on there as it will work fine with 11 speed.
Cranksets are same type so no need for new BB. Of all groupset components biggest weigh difference between 105 and Tiagra comes with crankset - 200+ grams, if I am not wrong
The website calls out a different bottom bracket for the Tiagra than the 105. Might just be an upgrade, but hard to say. You can try it and get the correct one for the 105 if you have problems.
#AskGCNTech Do you guys know of any MTB two bolt shoes (that you can actually walk on) that look more like road shoes?
Can you add a scoreboard for answers that are correct or incorrect?
To help remove decals on your wheels try using a hair dryer first. Most of them are vinyl and the heat will help peel them away then use acetone to get the glue off. Save yourself a lot of elbow grease this way 😘
Acetone may damage carbon wheels.
#askgcn What happens when a bottom bracket "goes" ....mine is making some pretty rubbish noises. Will it stop me mid ride???
Eventually, and probably when you are cranking the torque going up or down hill slipping off the pedals causing a crash. Better get it fixed ASAP.
I see that Si still hasn't returned that third wrench from the left!
Would it be possible to leave out the annoying background music.
There is also something missing above and beside the chain break, please rectify.
#askGCNTech
Is there a way to clean your whole bike witout making your bike chain wet cause sometimes i dont have enough time to also clean my chain
Saltygmr if you don't have time just clean the chain!
Try a damp songe and a pan of warm water. That's what I do.
Another great vid Ollie!
Every sticker and gluesremove one and only WD-40.
Yep. WD40 works well for removing sticker glue. I’ve used that a lot for those times a price tag or some sticker won’t come off something I just bought.
Will it also soften the material in carbon wheels?
@@chuckmccracken4136 Seriously???, you actually think that a "water displacement" (WD) and the 40 comes from the 40th attempt at the oily solution......
Would "affect" any carbon materials????
Come on....
I mean, carbon rims can handle Alpine decents....., they can handle Hard Knot pass where I live.....(that is a 25% switch back).....
And you question whether an oily substance will brake carbon...... 🙄
@@andystone5487 Yes, seriously. The carbon fiber only strengthens the underlying epoxy. Epoxy like any other material is susceptible to being attacked or dissolved by chemical solvents. I looked up the MSDS for WD-40, and it lists "Aliphatic Hydrocarbon" and "Petroleum Based Oil" among the ingredients. Not being an organic chemist, I can only speculate. Perhaps #askgcntech a PhD organic chemist on staff at GCN (yes you Ollie) could give us a definitive answer?
#AskGCNtech
Great show, always enjoy watching and learning form it.
I find myself a 2004 pinarello marvel frame, it has a semi-vertical dropout and adjustment screw.
Would it be possible to run it in single speed without using the chain tensioner?
Cheers
I think they suggested making sure the chain length was correct and even using "half-links in last week's show.
@@chuckmccracken4136 nice, I've already plan on using the half-link chain, but the length of the drop out where the axle sits isn't long(around 20mm), and its pointing in 45° rather than horizontal, that's where I concern the most.
Thanks for answering 👍🏻
Where is the third biggest wrench?
Look pedals with red cleats allow more float than Shimano
Nice work :)
Heat gun and a chopstick is what I used to remove wheel decals. Then rubbing alcohol.
Useful, I want to remove some stickers from my frame.
Any of the suggested methods should work, but some (acetone) may remove paint as well.
Isopropyl alcohol is decent at removing decals as is white spirit
when is that missing spanner coming home?
Lol, if I had Mavics I’d want to remove the decals also!😂
Yup just started to really HATE mine. They are going 😜
Tech question: My bike has Ultegra 6800 mechanical, I’ve ordered a new bike with Ultegra Di2, how excited should I be?
#AskGCNTech, what's the correct pronunciation of decals? Is it decals, or decals?
American or British pronunciation?
Transfers in my day !
Definitely Shimano-centric, GCN?
Only because most of us run Shimano. Ask SRAM questions.
Is GCN fast becoming OCN? #GCN
Cool answers bro!
Get rid of the background music. Very annoying.
How do I add a Jon to my GCN tech show? :'(
2:00 that's actually not true 100%. The Rohloff 18 speed hub has less rolling resistance than the best groupsets out there in certain gears. Look it up, it's true. CYCLINGABOUT made a video on the 2020 Kona Worldtraveller-S.
It’s Pinion that makes the massive 18 speed bottom bracket gearbox, Rohloff make the most efficient hub gear.
As a cycletourist, I’m very happy with a Rohloff. If you used it for cyclocross or CC mtbing, it would be fine when there’s gravel in wet clay, but you’d want derailleurs for cleaner surfaces. Would you want to turn up for races with two bike and wheel systems, or keep to one type?
@@janusz0 I forgot it's 14, not 18-speed. Still that's more than enough gears for me
really?
there is a local, pretty popular titanium bike builder near me that offers builds with internal gearing.
hey hey my Question!!
for the mavic askium wheels specifically, I'd recommend peanut butter and baby oil
#askgcntech
Did mostly of the bike frame are made in taiwan, cause i saw some bike have the stickers that say "made in taiwan"
don't even need to ask them, yes. Almost all good bikes are made in Taiwan, pinkbike has lots of articles on it. There is a pic somewhere of Scott and Trek frames being boxed up for shipping in a Giant factory. Lower end stuff even shares molds and carbon stock for some parts (think Addict/Defy/Emonda). I think they also determined Giant was making the lower end Colnago stuff too.
You're hair style is definitely more aero to match your new custom skin suit 👌
I hate apps.
530 for question dude rambles about nothing in the beginning
Chinese wheels have no decals. Your welcome 😅
"Looks like the future looks good(with the data gathering)" liar
first