Questions tagged [gears]
Gears in the drivetrain of a bike.
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Alternative gear ratio newbie question: Am I doing a mistake for this commuter?
I have a commuter bike using a 3x9 MTB transmission:
HG61 9 speed 11-32T: 11 / 12 / 14 / 16 / 18 / 21 / 24 / 28 / 32
Deore XT crankset (104MM) 22 / 32 / 44.
I mostly use the 32-tooth middle ...
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Can I run 11-32t on my Bike and 11-28t on my smart trainer using the same bike?
I run an 11-32t on my rear wheel and completely forgot to check the specs of the 11-speed cassette I ordered for my smart trainer. Turns out the one I got for the trainer was 11-28t. Can I run the ...
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Re-insert Gear Cable Plug / Fitting
My front derailleur wouldn't let me shift to the small chain ring, and after some investigation I located the issue to this plastic plug/fitting/thingy that seems to have popped out of the little hole ...
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Vertical Dropout Derailleur Hanger for a bike that did not come with gears?
I have a bike that did not come with gears. It is a rear hub driven ebike with a single speed. Eventually when the warranty runs out, I want to put gears in it and turn it to a mid drive. Now I know ...
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Can this Sunrace standard gear hanger be used with a quick release axle?
Can I use a Sunrace standard gear hanger with a quick release axle? The current axle does not protrude enough to extend into the area shown on the picture below which overlaps the frame (and looks ...
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How to change gears on Triban road bike
So, I recently bought this bike: https://www.decathlon.co.uk/p/road-bike-triban-rc-120-grey/_/R-p-308062
At the front are two cogs, small and large. I did say I was a newbie!!!
At the back are 8 cogs, ...
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Freewheel/gear slipping
I have a new bike which is roughly 6 months old and has not been used much. I've ridden roughly 120 miles on it and the gears or freewheel has started slipping when I'm in the lowest gear while ...
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Shimano 7 speed shifter with 9 speed drivetrain
Can I use a Shimano Alivio 7 speed shifter with Shimano Deore 9 speed drivetrain? Basically the bike originally came with everything being set up for 7 speed. Somebody switched out my tire/rim and ...
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Loud clunk moving to smallest sprocket
When I shift gears to the smallest sprocket it makes a very loud clunk sound. There's also a lot of movement in the chain, like a bounce. I've taken a video demonstrating this Video of clunk I'm ...
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7 or 8 speed cassette?
I'm riding a Schwinn GTX 2 and using it to learn things on. I am new to fixing newer bikes. I've changed to Altus front and rear derailleurs. Now I'm about to put on a gearset of the same. I've got ...
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Should I get 7 or 21 speeds for city commute?
I'm 5'10" 95kgs and am looking to buy a hybrid cycle for exercise.
Have never ridden a geared bicycle before and was wondering if I should go with 7 or 21 gears.
My commute would be within city ...
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Shimano nexus 3-speed hub gear, yellow dot does not move when adjusting
I have a bike with a Nexus 3 hub gear. Yesterday the shifting got out of whack, when set to gear 2, it was actually in gear 1, gear 3 was 2, and so on.
I looked up how to adjust it, and found that I ...
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New shifters for MTB to Gravel Bike (Deore M4120)
I have a MTB with DEORE RD-M4120 as the rear mech, and am currently running 10 speed, and am looking at converting this into a gravel bike. I want to put drop handlebars onto this new build, and was ...
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How much bend can I have on a gear cable before shifting performance is affected?
I have a Sunrace m2t derailleur on an old Batavus holiday dutch bike and I am running the gear cable from the derailleur down the chain stay under the bb and up the down tube. The bend on the gear ...
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What is the best way to increase gear inches on an old bike?
I only recently got into bicycling and without knowing anything, I bought a bike from a local used bike distributor.
Here's what I've learned about the bike.
The frame, seat, and handles are original ...
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Are there single speed electric bikes already?
Let's see how far the trend of motorcycle-disguised-as-bicycle is at. Electric drive is penetrating most market segments. The front derailleur is dead.
I believe all types of electric motors have an ...
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What happened to the rear gear? [closed]
I commute to work every day, 6km round trip. Everything was fine for many days.
Yesterday, I (believe successfully) switched from 2x2 to 3x7 in order to make some more intense training. I start ...
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Upgrading Gear Train, Brakes, Tires — Cannondale Topstone 4
I just purchased a Cannondale Topstone 4. To be honest, the bike fits me better than any bike I have ever purchased and I feel good riding it. I do, however, have a few issues for which I would like ...
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Can a gear shifter be replaced?
So I have a geared cycle from Rayleigh. While cycling I fell off, and the gear shifter for front gear broke off with the brake handle.
It was brand new cycle barely month old. and I didn't expect the ...
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What else do I need to change if I upgrade my Sora groupset?
I have a Specialized Allez 2019 or 2020 with Sora groupset, but the crankset is Praxis 50/32, and the brakes are Axis.
I changed the rear derailleur to a RD 5700 and I'm looking forward to upgrading ...
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Are equivalent chainring/cog combinations indistinguishable?
Let have these two combinations of chainring/cog. Both for 100 rpm, have almost same speed (and we can of course find cases where the speed matches exactly, but this is a quick example).
50x19-->20....
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combining technologies and speeds: shifter and rear derailleur (index, friction)
is it possible to combine an indexed shifter with old friction derailleurs?
As the cable is moved by the shifter, I understand that derailleurs should work by default and by moved with mm that the ...
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What liquid should I use in an ultrasonic cleaner?
I've ordered an ultrasonic cleaner, to clean up greasy, oily bike parts like chains and cassettes. I want to get them fully clean of contaminants and try a wax-based lubricant.
What kind of liquid ...
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Is it possible to change chainrings to bigger on Shimano FC-MT500-B2 (2x10, 36T-26T)?
I'd like to change a chainring for Shimano FC-MT500-B2 crank on my Grand Canyon 5 bike, because current setting (36T-26T) is not enough for me. On my previous bike I had 44T and it was fine, and I'd ...
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How can I find out the number of teeth on each cog for cassettes and chain rings?
I am trying to write an algorithm that will give me the number of unique gear ratios given information about chainring(s) and cog pair. To do this though, I believe that I need to know the number of ...
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My bike's gears won't shift properly or at all
Firstly, sorry if this has been asked before but I don't know much about bikes. I bought my bike from big w (fairly cheap beginners bike, but I am happy with it). It has two shifters, one on the left (...
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How to set H screw limit on front derailleur
I have made sure the FD (Front Derailleur) is at the right height and angled parralel to chain.
Now, I have shifted the gears rear and front outward most cog (8 and 3 respectively) and gone to adjust ...
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Uphill gears for Hybrid bike 21 speed
i am new to bike. I recently got 21 speed hybrid bike. I have used almost all gears combination but even slightest uphill is so difficult to pass. Everyone who is saying fitness matters in this, i don'...
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Is there a way to add the gear indicator to my bicycle?
My E-bicycle (12 gears rear only, Shimano Deore XT M8100) has no gear indicator. There is totally no clue which gear is currently engaged.
I find this very inconvenient as using the first (smallest) ...
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Replaced drivetrain but gears still skipping
I have a Specialized Cirrus Sport hybrid and recently replaced the cassette, chain and chainrings (which were very worn). I replaced my Shimano 9 speed 11-32 cassette with a new Sunrun version (also ...
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Chain dropping between chainrings when shifting down
I have a power2max NGeco 110mm spider with SRAM 50/34 chainrings mounted on it. I'm using an 11sp chain and an R8050 Di2 front derailleur.
When changing from the big ring down to the small ring, the ...
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Is a 1:1 gear ratio the same regardless of the specific gear sizes?
I have a gravel 1by bike with 42t and a 11-42 cassette. I also have a road bike with 50-34t and then 11-34 cassette. My question. When going uphill in easiest gear in both, they would both be a 1:1 ...
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Correct gear cable for vintage Shimano 600 derailleur?
I'm restoring an old bicycle and need gear cables for this derailleur (see photo). I found some specs here https://velobase.com/ViewComponent.aspx?ID=9422ABE1-A7B3-4622-9DAB-EF4DEC646ED5 but it doesn'...
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Bike mechanic told me: Gear cable too "springy"
I bought a new groupset and I tried installing it all myself.
Somewhere I must have messed up, because I could not get it to shift precisely. I took the bike to my local bike mechanic. He told me he ...
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SRAM XPLR for a 2x12
Hello fellow cyclists,
Could someone please explain to me why XPLR rear derailer is 1x only? I want to install it on my gravel bike with 43/30 double chainring upfront. What can go wrong?
Thanks!
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Front derailleur cable touching frame?
Installing gears on my bike on my own for the first time.
I pulled the front derailleur gear cable through an intended hole in the frame like so:
So everything should be fine. However, looking under ...
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Crunching Gears
I had a crash a while back on my road bike and I checked my bike thoroughly and it seemed pretty good. I went on a ride today and the gears were constantly crunching, shifting between gears was fine ...
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Are there any electronic shifters that decide front/back for you?
Are there any road bike electronic shifting systems out there currently that only have a single up and down shifter lever and use a computer to make the decision of whether to shift on the rear ...
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Why my bike gear won't change only when I stop pedaling?
I have an issue with my bike, it works nicely until I am changing the gears. Every time I want to change one gear up, I have to stop pedaling or it won't change. There is no issue going back one gear.
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shimano xt m-8000 triple/double
Touring bike which is running XT M-8000 double crankset. It is geared too low. Chainrings are 36t and 26t with cassette ranging from 11t to 40t. I don't think the other M-8000 double chainring option ...
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Does a bike-stalling speed exist? [closed]
Planes can stall. A plane maintains lift through speed. If the speed drops below a threshold, the plane stalls and begins a downspiral.
Now that many 1x modern bikes are discarding front derailleurs, ...
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Shifting derailleur without pedaling?
I know shifting gears without pedaling would potentially damage your bike, but would shifting front derailleur while stationary damage anything?
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can't stop pedaling or chain drops down
Managed to unstick derailer. But can't stop pedaling or chain drops down.So when trying to stop bike. have to take feet off pedal to not catch chain
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New to Bikes: My chain fell off and I put it back on. How can I know if it's on the right cog?
I am new to bikes not ridden one since I was 11 I am now 63!
I have a mountain bike and never used gears before they are mind boggling.
I went out and rode it no problem but trying gear changes I don'...
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Fastest possible drivetrain?
I am looking for the ideal gearing to achieve good speed on a gravel bike when commuting. 2x11? 1x12? 3x12? 10-52? 11-50? How many teeth on the chainring? I know I could go faster if I get a road bike ...
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Gear Problems, cassette shifting
I was tuning my gears on my road bike and I left it when it shifted up and down every gear well but now the next day it is very odd, when clicking the lever it now sounds different and it now won't go ...
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front gear shifter cable sleeve, shifter to frame needs replacing, the old wire rusted inside
bought this bike 2nd hand from charity shop,
front gear shifter was sticky and wouldn't shift to 3 [3+8 setup] as was already at 3. [streached?]
''bloke who brought it in said it just needs oiling'',
...
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Compound for freewheel locking sprocket threads
I have an oldschool SunTour 6-speed freewheel, where the smallest sprocket screws on the freewheel body to lock the larger sprockets in place.
It's a normal right hand thread, so as you pedal in the ...
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Gear shifting is good enough after 6 years. Does that mean I don't need to replace my cables?
My road bike gear cables have never been replaced, they are 6 years old now. The shifting at the back needs at tune up now and then, more and more frequently as time goes. But once it's done the ...
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New freehub body causing chain slack and ghost pedaling
I have replaced my freehub body like-for-like. Now when I freewheel, the top part of the chain goes slack and the pedals spin when I take my feet off them.
This usually occurs on old gunked-up ...
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