Questions tagged [gears]
Gears in the drivetrain of a bike.
25 questions from the last 365 days
12
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2
answers
2k
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Is there a word for the range of "difficulty to pedal"?
On an older bike I had 21 gears with two blocks of chainrings (one at the pedals and one in the back). Currently I have 8 gears with a shimano system where the chain does not hop on different ...
- 231
9
votes
2
answers
2k
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Simultaneous clang, hesitation and drop when I pedal with any weight
Background: New chain, new bottom bracket, new front derailleur, new shifters, new brakes.
This is a cheap Walmart Mongoose that I'm trying to keep riding and upgraded some of the components recently, ...
- 91
1
vote
2
answers
55
views
Cannot remove gears/cassette from axle (hub motor)
Cannot remove the cassette from the axle
I have an e-bike with an 8FUN hub motor,
I would now like to replace the cassette as the gears are quite worn.
But I can't get them off.
I have attached a ...
- 133
5
votes
4
answers
909
views
How to achieve 24t-38t front chainrings
After staring at many a graph and crunching far too many numbers, I've concluded that a 2x, 24-38t chainring setup would provide the best gear ratios for me. I bike near the edge of a valley with ...
- 617
3
votes
0
answers
38
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Indexing rear gears mountain bike
Bought an old bike to get back on the road, all good until indexing the gears.
It's twist shifts on the handle bars, 7 rear 3 front.
I've replaced the gear cables, sheaths, chain and Shimano parts ...
- 31
7
votes
3
answers
1k
views
Why does my shifter say the wrong gear?
I had a slow puncture in my rear tyre. I fixed it by flipping the bike upside down, removing the rear wheel, patching the inner tube and replacing the wheel. However, I seem to have caused a strange ...
- 233
4
votes
5
answers
168
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Unable to shift to two largest cogs
Just been out on a ride and beforehand it was shifting through all the gears fine but I think I hit a few bumps and heard some clunking and I could not shift into the two highest gears. I did just re-...
- 81
1
vote
1
answer
106
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What is this spring for from the rear wheel?
I am trying to take off the magnet light holder from my rear wheel and this spring popped out when removing the red plastic screw and now I can't fit it back in. What is it for? Gears are SRAM S7
- 41
0
votes
1
answer
79
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How to properly adjust rear derailleur for Wahoo Kickr?
I have a Merida Escultura 100 connected to a Wahoo Kickr (with the rear wheel removed, of course). I've ridden this combination for over a year and had the derailleur adjusted more or less so there ...
- 1,081
0
votes
1
answer
118
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Help! The two-speed gears on my Brompton don't shift anymore
On my 6-speed Brompton the two-speed gears suddenly stopped working. I still can operate the shifter (and the cable still seems to be under the expected tension), but the two-gear “derailleur” (chain ...
- 433
6
votes
3
answers
1k
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New bike-vibration in pedals
I just bought brand new Scott Sub Cross 10 mens city/crossbike. It has 30 gears and the same day after I bought it I went driving on an asphalt road and started to feel grinding/vibration in pedals at ...
- 63
2
votes
0
answers
64
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Changing gear usage of Rohloff gears
I have a R&M Homage with Rohloff e-14 gears. I find I really just use gears 7 - 14. Can sprockets be changed so I would mainly use gears 4 - 11??
- 21
5
votes
2
answers
758
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Help choosing right chainset / crankset - commuter looking for a faster top speed
I need to replace the chainset on my commuter bike and I'm thinking of a change.
I've currently got Shimano: 28/38/48 front, 11-32 (8 cogs) back.
My daily cycle (north to central London and back) is ...
- 193
0
votes
1
answer
75
views
I have a Shimano deore m5100 cassette and have found it doesn’t fit on the freehub body that is on my bike just wondering what freehub body i need
Shimano Deore 11 speed cassette
7 speed cassette to 9 speed cassette
Have removed original 7 speed cassette and tried to fit new 11 speed and the free gun isn’t long enough for all the gears on the 11 ...
1
vote
2
answers
46
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converting to a 48/38/28 oval tech SR Sakae
I am a 72 year old, male rider, 5’11” used to touring with a 52/42/30 triple chainring and 170mm crankarm. Would converting with a 48/38/28 ovaltech SR Sakae help with climbing the grades without ...
- 11
1
vote
2
answers
696
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Is there still production of manual gearbox bicycles?
I have found the 1930s Gearbox Bike - Restoration video on Youtube.
This is a 1930's bicycle which was manufactured with a gearbox that you can shift like the one on a motorbike or a car, though there ...
- 367
7
votes
1
answer
692
views
Why can't the Schlumpf Mountain Drive be used along with the 14-speed Rohloff?
Why is it "not allowed" to use the 14-speed Rohloff in combination with the Schlumpf Mountain Drive?
According to Function-Schlumpf-Mountain-Drive.pdf:
Please notice: the 14-speed Rohloff ...
- 537
3
votes
1
answer
70
views
Is play on the Schlumpf Mountain Drive chainring a problem? How to fix?
There is forward & backward play on my Schlumpf Mountain Drive chainring. Is this a problem? If so, how do I fix it?
When I hold the crank steady, there is back-and-forth play on the chainring in ...
- 537
0
votes
0
answers
55
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New Bike - gear shifter installed on the left and upside down? Easy fix?
New bike (flat bar , gravel bike) came with the gear lever on the left side and upside down. Dropper post lever on the right side of bars, and on top of the bar. Any reason for this, and is it an easy ...
1
vote
1
answer
207
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pedals only move bike at highest gear
Recently my bike will only move if I’m in the highest gear. I can pedal at lower gears but it will not move my bike forward at any reasonable speed and when I get up to even a very low speed the ...
- 11
0
votes
1
answer
71
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Derailleur intermittent rubbing
So my front derailleur gets rubbed on by the chain when I give it a good push.
If I have the bike up and just turning the crank or gently pedaling there is no rubbing, but if I put my weight into it I ...
0
votes
0
answers
75
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How to replace a band (hub, drum) brake with a freewheel
I am looking to convert my bicycle into a semi-electric bike by adding a freewheel. The 2 freewheels will allow me to use either pedals or an electric motor to move the bike. However, I don't have ...
- 139
3
votes
1
answer
194
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How can I add an additional freewheel to the existing solid bicycle axle?
I want to convert my bicycle into an electric bike by adding a motor to it, allowing me to ride it using both pedals and the motor. I need to add a motor and a separate chain system, similar to the ...
- 139
4
votes
2
answers
835
views
Cannot figure out how to stop outer edge of front derailleur hitting chain
I have a Giant road bike with Shimano Ultegra gears.
The outer side of the front derailleur is making contact with the chain, on both crank chain rings, when in the highest gear at the rear.
I have ...
- 493
0
votes
1
answer
100
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My shifters are stuck in the negatives
So I recently bought my first bike. It worked great until winter hit. The gears stopped working and my girlfriend (who bikes way more that I do) said they so that when it gets really cold sometimes ...
