Questions tagged [gears]
Gears in the drivetrain of a bike.
745 questions
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Gear Problems small chainring to big chainring
My bike won't shift from the small chainring to the big one, sometimes it does it after 5 mins of trying. The cables are not very worn and near new and so is the chain, I have tried increasing tension ...
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What is the maximum cassette teeth for my mt210 3x9 crankset (44/32/22)
I'm currently assembling a bike. I bought a Shimano mt210 3x9 (44/32/22) crankset. I'm wondering what maximum teeth cassette should I buy that will be suitable and compatible with this crankset? Also ...
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I wanted to adjust the rear derailleur and loosened the cable to begin. The twister shifter was working before loosening, now it isn't
The rear gears (6) were not adjusted properly and the biggest cog was allowing the chain to jump off next to the wheel. I know now I should have just adjusted the L-screw. But didn't realize that at ...
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Changing cassettes for hills
I currently have a 52-42 front chain ring and a 12-25 cassette on a short cage derailleur,would i be able to change to a 11-34 without any changes to my bike.
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Friction shifters keep sliding into high gear
Recently, one of my friction shifters (the one on the right side of the bike) has been sliding into the highest gear. I can access the lower gears if I hold it in place while biking. I'm wondering if ...
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7 gear to an 8 gear cluster
I currently have a 1x7 setup on my mtb, originally converted from a 3x7, as you can imagine. I'd like to replace my 7 gear cluster to an 8 or 9 gear cluster. Will this be nothing more than a simple ...
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My bike is not shifting to the proper gear
So I have a Shimano derailleur and it shifts up decent only problem is it does not shift to the gear it's supposed to shift to. On my bars it will say I'm in gear 5 for example but the back of my bike ...
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Campagnolo Veloce compatibility - small rear derailleur with larger (29 or larger) cassette?
I recently bought myself a second-hand Condor Fratello. It is fitted with Campy Veloce (mix) groupset, currently with a 12-25 cassette. I'm coming from riding a 105 (11-32 cassette) for years, and ...
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11t-40t/42t cassette on 3x9 system
I need your help about gear ratio.
I am currently riding 3x9 drivetrain, Deore m592 rear (SGS-Shadow), Deore XT m770 front.
My gear ratio is:
11t-32t (rear) and
22t-34t-44t (front).
My local hills and ...
- 131k
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Bike build recommendation
Im planning to build a gravel bike and I already have the following:
Flared Drop bar
Tiagra STI R7000
10S Deore M4100 Sprocket 11-42
700c Rims
Marin Alps Series Frame
What other components should I ...
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How bad is switching derailleur gears under load?
I have heard several times the wisdom that you should not switch derailleur gears while pedalling hard ("under load"). The "right way", according to those people, is to pick up ...
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Gears slipping when back peddaling
So i was out on my bike racing this weekend and i had a pretty fun time but on one of my practice runs my chain fell off so i quickly got off and put it back on and worked perfectly fine from there. ...
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Is it possible to add another chainring to Cannondale Trail SL 3?
I recently bought a Cannondale Trail SL 3 2021, and quickly realized that I need heavier gears for riding comfortably down hill and on flat ground.
Is it possible to add a second, larger chain ring ...
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Impossible to index front chain ring!
My chain is struggling to get onto the big chain ring and when it does it has quite a bit of chain rub.
The limit screws are quite literally on the limit! And there doesn't appear to be a barrel ...
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Shimano new shifters needed to replace 105 10speeds
My right shifter has completely broken and I need to buy new shifters.
The current setup is a 10-speed system using 105's. I appreciate that the new 105's come in an 11-speed option only.
The ...
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Custom/modified Drivetrain 2x/3x Considerations and Planning
Planning a drivetrain setup for a new bike:
Currently running old Shimano 3x9 44/32/22t on 11-34t, which gives me 19-115 gear-inches (about 620%).
I used 29x2.0, 170mm crank to calculate my current ...
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105 11-34T Cassette Compatibility
I purchased a Merida Speeder 400 a year back. This came with Shimano 50-34 teeth and Shimano CSR7000 11-32 teeth 11-speed cassette which I replaced with Shimano 105 R7000 11 Speed 11-34 Teeth Cassette....
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Can no longer shift to lowest gear
I recently worked on my derailleur a bit to fix some issues in high gears, however, now I can no longer shift down to my lowest in the cassette when in either crankset.
I have tried the L screw at ...
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My bike is slipping only in highest gear
I used to ride my bike in highest gear all the time, even uphill, and didn't shift down unless i absolutely needed to.
Then my highest gear started slipping on uphill and even on straight road if i ...
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What is the best gear combo for me on road bike?
I've got a 2011 Specialized Secteur Elite with basic sram apex groupset.
It has the following specs:
10 speed 11-34t cassette SRAM APEX
50/34t chainwheel SRAM APEX
Currently running 700c with 25m ...
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Internal Gear Hub Nexus 7
I just bought a new bike and it has the nexus 7 internal hub. This is my first internal hub. I love to ride but admittedly don't know much about the mechanics of bikes. I'm 57 and mostly ride the bike ...
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Does new chainring require change of other parts?
I'm thinking about changing my 2nd chanring to a smaller one (2 chanring setup). I hear most people recommend to change the chain when changing the cassette.
Hence my question: should I expect to ...
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Why does my Shimano Nexus 8i need readjustment after every gear shift?
Since a month or two, almost every time I change gear my Shimano Nexus 8i becomes "unadjusted". I have readjusted it dozens of time but the problem persists. The gear is really easy to ...
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Looking to change from Octalink Claris to Shimano 105, will the frame be compatible with a 105 hub?
Since road bikes are sold out almost everywhere. I was thinking about upgrading my current road bike with a new group set. My current bike a Scott Speedster 50 (2015) currently has a Shimano Claris ...
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Upgrading gears from microshift to Shimano
I have a Firestorm 29D (3 * 8 gears, 24 total) bike. The shifting is not smooth at all. I would like to upgrade my rear derailer and shifters or groupset to Shimano altus or any other. Kindly suggest ...
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How to calculate gear range mean step?
On this wikipedia article, all the mean steps in the gearing range chart appear to be wrong, but my guess is that I am misinterpreting something:
https://en.wikipedia.org/wiki/Bicycle_gearing
180%/3 !=...
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Internal friction in new Alfine 11 S7001-11
I just bought a new rear wheel with an Alfine S7001-11 internal-gear hub. Before installing it, I realized that it apparently has heavy internal friction. When the wheel is set in motion, it comes to ...
- 131k
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Make a broken gear bike a fixie
Hi sadly my gear is broken. Now my idea was to remove the gear and shorten the bicycle chain to make the bike a fixie. It's a bike with 7 gears at the back wheel and no gear at the front.
What do you ...
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Chain slipping on smallest cogs (bigger chainring, new chain)
I recently switched my SRAM 1x12 Eagle SX drivetrain from a 30 to 34 direct mount Chainring. I also bought a new chain to accompany with it. Chain length was measured as the sram service manual ...
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Slight crackling sensation apparently due to the chain sticking to the cassette teeth
I've just assembled my bike, so it has hardly been ridden (less than 200km) and all the components are new.
Everything works perfectly, except an unpleasant very slight crackling sensation when I ...
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Can I 'upgrade' a 9 speed Tiagra RD to Sora to lower my gears?
My girlfriend has an oldish Cannondale CAAD8 bike with Tiagra 9 speed triple. The rear derailleur is the RD-4500 GS with a 12-26 cassette. The front is a 50-39-30. She'd like to get a lower bottom ...
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Issue shifting from largest cog to second largest
Got a Canyon Spectral 3 weeks ago, have done around 2 hours riding on it and have noticed an issue with shifting from the largest cog to second largest. The drivetrain is SRAM NX 1x12.
There are two ...
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Best bicycle for a moderate to extremely hilly suburbs?
I've moved to an area that's notoriously hilly. I had gained a lot of weight but managed to ride it off by cycling in a well built but extremely faulty and wastefully heavy chinese bike. The gears ...
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Why are bicycle gear ratios computed as front/rear and not the opposite?
I recently realized that when people talk about bicycle gear ratios, it's calculated as number of teeth on the (front) chainring divided by the number of teeth on the (rear) sprocket/cog.
This made me ...
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Chain hitting front derailleur cage with H limit screw fully loosened
I followed the Park Tools guide to set up my gears. The rear derailleur was a success but I can't manage to adjust the front derailleur so that the chain stops grinding on the guard. There's no more ...
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Swapping wheels and cassettes with Shimano GRX 600/800
I am in the market for a gravel bike. I plan on getting a second set of wheels for road rides. This bike will most likely have Shimano GRX 600 or 800 2x and an 11-34 cassette. Assuming the rear ...
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how can you index a 9 speed 11-46 tooth cassette if the gears arent equally apart
I am looking at purchasing a 9 speed 11-46 cassette but on inspection the bigger cogs are not equally apart from the smaller ones. How would you go on with indexing (I use a thumb shifter 9 speed) if ...
- 131k
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Replacing rear solid axle with skewer
Hoping someone can advise.
I recently ordered a Saris Fluid2 trainer, which requires me to use a special quick release skewer on the rear wheel. However, my regular road bike is an old Acapulco ...
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What's the shortest / easiest "granny gear" available?
What's the range on granny gears - the innermost, smallest front chainring?
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Gears reversed (1<->7) after replacing back tire. Why?
Gears reversed (1<->7) on the back disk after replacing back tire. Why?
Here are pictures starting with 2nd gear then going to 6th but the shift is actually reversed:
https://photos.app.goo.gl/...
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Does crank length affect the number of gears a bicycle needs?
When I was a child I noticed that as I out-grew my bike (or when I rode a smaller child's bike) I felt like I could accelerate better. The smaller bike seemed 'nippier', and in hindsight it was ...
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Can you run 52/39 chain rings with an 11/32 cassette?
Seems most bikes either come with 50/36 rings and an 11/32 or 52/39 rings with an 11/28 cassette. I live in hilly terrain and do need lower gears but often feel spun out with my 50/36 by 11/32, could ...
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Change gear cables for Shimano Tiagra 4603
Can't seem to figure out the way to enter the cable shifter which broke while riding!!!
Can't also find a manual or video out there helping me to replace it.
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which motor is used to change gears in automatic gear shifting cycle now-a-days?
I am doing a project on automatic gear shifting. I need to choose which motor will be used to change the gear.
I have found a previous question on this topic. An answer mentioned:
If you used a ...
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Reinstall a Shimano nexus 7 wheel after puncture?
I took my back wheel off to fix the tube. When trying to put back together the "gear cassette" I was struggling, it just wouldn’t fit.
I eventually checked a youtube video that explains how ...
- 131k
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Hot water to unjam trigger shifter
Can I use hot water to unjam my Shimano trigger shifters? Has anyone had any experience with this?
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Bike with coaster brake and gears for teenager with disabilities
I have a 13 year old with a form of muscular dystrophy. He's well physically, though not as strong as most kids, and can ride a bike.
We got him a cruiser bike, which I then modified to make ...
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Convert single speed, steel framed, vintage track bike to geared
Is there any way to convert a steel framed single speed vintage track bike to a geared bike? I have a track bike with only the rails for the wheel but I've moved out of the city and there are more ...
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Convert track bike to geared
Is there any way to convert a track bike to a geared bike? I have a track bike with only the rails for the wheel but I've moved out of the city and there are more hills where I am now living so would ...
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One of the cogs on my freewheel is bent and I have an assumption of how it happened
I was riding up a steep road when I shifted to a lower gear and I was pushing really hard on the pedals. Then I checked my freewheel, one the cogs was slightly bent I don't know if it got bent because ...
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