Questions tagged [gears]

Gears in the drivetrain of a bike.

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2
votes
2answers
1k views

Combine Nexus 3 Hub with Torpedo 3 gear shifter?

I have upgraded my bike with a Nexus 3 hub, but the corresponding gear shifter takes away too much handle space on my crooked handle bar (I have to grab the gear shifter during my rides). Hence, I'd ...
3
votes
2answers
776 views

Need easier gearing. What would the effect of changing the chainring or cassette be?

My mountain bike is too difficult to pedal when the going gets steep. I need an easier gear ratio. Am I better off switching the chainring or the cassette? I currently have: A 30 tooth FSA ...
0
votes
1answer
56 views

Problem with Apollo Gradient clunky and missed gear changes

About four months ago I decided to get back into riding. I bought an Apollo Gradient mountain bike. I know this is quite a cheap/basic bike but didn't want to spend a lot if I didn't stick with it. I ...
3
votes
2answers
80 views

Dual gear cable setup for aerobars and handelbars

Is there a solution to set up gear shifters at the end bar of the aerobars and on the handlebars simultaniously? It is just annoying when I am down in triathlon position and have to change the grip ...
43
votes
11answers
25k views

What's the efficiency of hub gears compared to derailleurs?

What's the efficiency of hub gears compared to derailleurs? I know that hub gears are not as efficient. Apart from being heavier, how much will I lose in performance if I use hub gears?
4
votes
1answer
2k views

Downtube shifters won't stay in low gear on rear derailleur

I've finished a bike restoration today and it's my first time using downtube shifters. They work and will span the full range of gears but won't stay in the big cog on the back for long, the shifter ...
1
vote
1answer
396 views

Is it possible to upgrade Schwinn Willy to use an internal gear hub?

I have a Schwinn Willy (single speed). My commute is 6 miles each way on flat road with a bike section. There's only one 'hilly' section. A single speed bike is too slow. Everyone keeps passing me. I ...
2
votes
1answer
39 views

Sram trigger shifters for flat bars

I have a Kona Rove ST (specifications here). I'd like to change the drop bars by flat bars (it will be better for the travelling I'm planning, but that's not the point). But I don't know what ...
2
votes
2answers
78 views

Changing to a smaller gear ratio

I have a Kona Rove ST, with a 40 teeth gear wheel and a 11-42 cassette. It's all SRAM. Here is the technical description. It's ok for now, but I'm often using the smallest ratio (40x42) so I don't ...
1
vote
1answer
117 views

Can I replace hood covers on Shimano ST-2300 brake/gear levers?

I'm looking to buy a replacement cover on my right brake/gear lever which is a Shimano ST2300. I've found a 'Shimano Bracket-Cover Hood Dual-Control-Lever R9150/R9170' Road-Bike on AliExpress, but I'...
4
votes
1answer
122 views

Pulley for 10 Gear Derailleur for 9 Gear Chain

I am using a 10 gear XTR derailleur on a 9 gear cassette with a 9 gear chain and the tension pulley of the derailleur looks like needing replacement (despite teeth being very sharp it seems to work OK ...
10
votes
3answers
9k views

What is the impact of changing to a smaller chainring?

My road bike has a Campagnolo Veloce gearset. It's running 53 and 39 tooth chainrings. I have a 13-25 10sp cassette. I find that a lot of the time when I'm cruising, I'm on the big chainring and in ...
2
votes
1answer
101 views

Problems indexing gears

I have a Boardman CX Team 2014 with some indexing issues. It's running a Shimano Sora ST-3500 9 speed shifter with a Shimano Sora rear mech. The gears had not been running all that smoothly and, as I ...
1
vote
4answers
1k views

Does changing gear relation produce different speed at same applied power?

When you are starting the ride, I potentially believe ("know?") that with a smaller plate(cog with fewer teeth in the rear cassette), you obtain more velocity than with a bigger plate(cog with more ...
6
votes
3answers
16k views

Choosing a rear derailleur for 11-42t cassette on a SRAM 10-speed 1x system

I have an 11-42t 10 speed cassette and a 42t narrow wide chainring. I cannot work it out definitely whether a Sram long cage rear derailleur will work with it. I think that this one should work but ...
0
votes
0answers
43 views

Bike makes noise while 2 out of 3 gears

I assembled a new bike. It rides smooth in first gear but makes a particular noise in 2nd and 3rd gear. It doesn't seem to be from the wheel because it's not there if I turn the wheels in air, but it ...
0
votes
5answers
1k views

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 ...
8
votes
6answers
13k views

Why are there almost no bikes with a single chainring?

Bikes with two or three chainrings are the norm, and then there are singlespeeds, but except for kids' bikes, you see almost no stock bikes with a single chainring in front but a cassette and ...
1
vote
1answer
87 views

Do simpler casettes have less issues with missing shifts?

On my new Trek Marlin with a 8 gear cassette, sometimes I try to downshift into the middle of the range of gears and it doesn't take (upshifting works fine). I can hear the gear clicking for a few ...
8
votes
6answers
2k views

Group of Bikes: Is 3x1 an option?

I'm an RA for a dorm that is considering buying a number of bikes that would be owned by the dorm and lent out to students. I will be at least in part responsible for maintaining the fleet (about 10 ...
3
votes
2answers
2k views

Chain coming off with internal hub gear bike - why?

I have a Raleigh Caprice bike, about 7 years old, with sturmey archer 3 speed hub gears. There have been some problems with the hub gears in the past 9 months, which have been fixed by a mechanic. ...
12
votes
7answers
7k views

What is the purpose of so many gears?

My bike, which I love dearly, has 21 gears, which appears to now be standard among mountain bikes. Is that truly better with a bike that has, say, 7 gears? And why is it that the amount of gears a ...
5
votes
4answers
4k views

Shimano Revoshift twist grip unusably tight

Shimano twist grip shifter on Apollo Neo 6 girls bike. I bought this bike 6 months ago for my 7 year old. After getting it serviced at 99 Bikes the shifter was so stiff my daughter couldn’t change ...
12
votes
12answers
71k views

While pedaling standing up, bike crank gives in as if shifting, what is causing this?

While standing up and pedaling, the cranks give in as if shifting. It seams like I am shifting down, but my hands are off the shifter, almost like the chain is skipping a link. I took it to a bike ...
1
vote
1answer
107 views

Strangeness with gears

I searched the internet and this forum and couldn't find anything about this. I recently took off my rear wheel to change the tire and tube. Upon returning it, it shifts fine (no falloff or skip) ...
3
votes
3answers
478 views

50/34 compact with 11-32 10-speed Shimano 105 - will 11-34 make climbing easier or change chainring

As mentioned above...I'm running a 50/34 10 speed with 11-32 cassette but would like to change to a configuration that would make climbing hill easier. I live in a hilly area so every time I cycle, ...
0
votes
2answers
102 views

Can't shift to highest front gear

I've been trying to propely adjust front gears in my bike, but failed to do so. I can't make the front gear to shift to highest gear. I can make it work when testing the bike while it's lifted, but ...
1
vote
4answers
169 views

How do I know what gear combinations should work without chain rasp on front derailleur?

I tried adjusting the front derailleur on a 3x10 trekking bike. After fiddling around a long time, I concluded that is probably not possible to make all cogs work with all chainrings. How do I know ...
0
votes
1answer
137 views

Adding gears to adult tricycle [closed]

I would like to add gears to my adult tricycle. How difficult would that be and would it be very costly?
1
vote
3answers
219 views

Other than chain length, what are the limitations to the number of gear teeth?

I need to replace my chainwheel and cassette, and it made me think. I know that the chain has to be a specific length relative to the number of teeth on the gears. I was thinking about changing the ...
3
votes
1answer
188 views

Replaced rear axle, now seems to wobble

I was replacing a tyre a couple of days ago, and noticed my rear axle had snapped. So I replaced the axle, just a normal road 10mm x 145mm, it's a basic Shimano sprocket set and no-name aluminium ...
3
votes
1answer
119 views

Chain slipping between frame and gears

I have a bike that I use for getting from place to place. The only problem is, the chain periodically slips off the gears and gets stuck between the frame and the rear wheel gears. Almost like my bike ...
3
votes
2answers
129 views

Replace gear shifter with one with gear number display

My current back gear has a shifter without a gear number display, with only the + and - signs on the ends. I was thinking to replace it with a numbered one. Would using a numbered one cause any ...
18
votes
8answers
12k views

What is the simplest way to lower the gearing on my touring bike?

I have a 2004 Jamis Aurora with a 52/42/30 triple and an 11-32 cassette in the back. 30x32 (25.3 gear inches) being the lowest gear is frustrating for the hilly terrain where I live (e.g., 7% grade ...
2
votes
1answer
94 views

A clicking every couple of pedal turns (video included)

I have been using a hybrid trek for a couple of weeks. The bike is still very new with only around 150 miles done. This morning on a ride it kept clicking every few pedal turns. I cut the ride ...
0
votes
1answer
134 views

Should I replace the bent Derailleur hanger?

My friend (also on a bike) collided with me while we were riding together. As a result of the collision, I now have a bent derailleur hanger. Should I replace it alongside the Derailleur? The bike ...
1
vote
2answers
112 views

Does my chain need to be replaced because it has looped itself many times?

A snapped off derailleur caused my chain to loop itself so unsure whether it needs replacing.
2
votes
2answers
170 views

Lowest rideable gear ratio

What is the lowest rideable gear ratio (chainring/cassette) possible without feeling like having to balance/trackstand? I'm doing some virtual simulations right now and I'm just setting up IRL limits. ...
0
votes
2answers
473 views

Please identify my Orbea

Bicycle helps in my exercise to lower cholesterol. Like the way it coast and how light it is.
4
votes
3answers
147 views

How to create a bicycle that rolls backwards when you pedal forward?

This may seem like a crazy question, but I am currently trying to design a kinetic machine where pilots are facing away from the direction of motion, adding whimsy and curiosity. As someone who doesn’...
3
votes
2answers
185 views

Gear change recording

Has anyone heard of a device that records gear changes? Like a cadence sensor or power meter, but specific to recording when you change gear. With all the data we can currently capture about our ...
22
votes
4answers
6k views

Pedaling at different gear ratios on flat terrain: what's the point?

I have seen many cyclist pedaling at different gear ratios on the same (flat) terrain and cruising at (roughly) the same speed. They move quite fast, but when I look at how fast they pedal, I realize ...
6
votes
2answers
160 views

Lower gearing for a Trek 520

I have a stock 2016 Trek 520 bike and I'm a newbie to road cycling. It has Alivio front derailleur and Deore rear derailleur with Deore triple-chainring crank. The 2016 came with 26/36/48 front ...
3
votes
1answer
67 views

How can I get a snapped gear cable out of my Shimano brifter?

Shimano's brifters that route the cables under the bar tape make the gear cable turn through a tight corner to get into that routing. This seems to weaken the cables and, if they're not replaced in ...
0
votes
1answer
207 views

Front gears won't shift

I am very new to the bike maintenance, but want to learn how to do it myself. I have got a MTB which won't change the gears at front. It's basically stuck in the granny gear at the moment. I tried to ...
-1
votes
4answers
105 views

Is not changing/shifting gears much bad when riding around?

I usually would set the gear to one level and leave it at that if I felt comfortable -- however, I just heard of someone changing gears on stops and whatnot to help with the initial inertia from full ...
4
votes
1answer
332 views

Can I use Shimano's Di2 e-tube project software to do a custom lock out of additional small sprockets while in the small chainring?

Context: I'm designing a drivetrain for a touring triple-tandem that I'd like to have a very wide gear ratio. I plan to use the Shimano Di2 derailleurs (long cage RD-M9050-SGS and 3x11 FD-M9050) to ...
4
votes
2answers
2k views

Feasibility of coupling internal hub gear and derailleur

Price considerations apart, would it make sense to install together an internal hub gear and a derailleur? I was thinking of it as a viable way to avoid having the front gears.
7
votes
4answers
62k views

Special hub requirements for an 11-speed group

In a question earlier today (Changing cassette from 8 to 10 or 11 to meet the Shimano 105 5800 groupset) the Op asserts that they would need to change their hub, if they wanted to go from a 10- to 11- ...
1
vote
1answer
89 views

Why are barrel adjusters different for brakes and gears?

In my experience, the ones for brakes will look something like this while ones for gears will look like this Is it even true that this is the case or did I just randomly see all the bikes having ...