Gears in the drivetrain of a bike.

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421 views

Adjusting gear ratio

I currently ride a single-speed converted bike (vertical drop-outs). I like the ride but feel that when I'm going for high speed on the road, I'm pedaling too much. Currently running a 18T cog on the ...
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2answers
376 views

Which gears not to use in a 2 X 9 gear bike

I am new to biking. I bought a hybrid bike with 9 gears at the back tire and 2 gears at the front. For reference lets say gears at front (chain ring) are numbered 1-2 and gears at back are numbered 1-...
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3answers
389 views

Refitting Cable to Rear Derailleur

Whilst riding recently the cable slipped from the clamp on the rear derailleur. I'm attempting to affect repairs by re-clamping the cable. However by pulling the cable tight I have lost the bottom 2 ...
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2answers
48 views

Can I convert a 1x9 speed Madsen kg271 cargo bike to a 2 or 3 x 9?

I know most these days seem to want to go the other direction, but my partner would like more gears on this heavy cargo bike that can be tough to pedal uphill. I think the frame has all of the ...
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1answer
80 views

Ideal % jump between gears?

I am wondering if people prefer equally spaced gears (such as 20% per gear change) or if (like on motorcycles), the lower gears are spread out more and the upper gears are "tighter" (more closely ...
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2answers
4k views

Converting a Bicycle without gears into a Geared one? [duplicate]

I have a racer street bicycle without gears. I want to convert that into a geared one. For that I will need to modify the rear part of the frame where the wheel goes in. Is it advisable to do so?
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3answers
21k views

How to fix problem with mountain bike chain falling off gears?

The chain on my girlfriend's bike came off the front gear today, it looks like the back gear changing mechanism isn't handling back-pedaling properly, whenever she pedals backwards the chain slacks ...
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1answer
50 views

MTB gear xx1 repairable?

I have an XX1 cassette, and broke the cog with 24 teeth, is this replaceable or repairable?
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1answer
51 views

Front derailleur takes 6 clicks to shift gears, instead of 3 [duplicate]

I've just stripped all cables and chain from a badly kept bicycle and replaced them. I've correctly adjusted the rear derailleur and it works great. However, front derailleur which only has 3 gears ...
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3answers
1k views

Shimano Sora 9-speed shifters “missing a speed”

First time posting, hope I can get some suggestions on this weird issue I've noticed with my shifting. I have a fairly decent understanding of how to maintain gears myself, and have made quite a few ...
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3answers
279 views

Can I modify the gearing on a 2009 Jamis Aurora?

I have a stock 2009 Jamis Aurora. I'm looking to modify my gear set-up to make climbing hills with large loads a little easier on my knees, as I constantly find myself wishing I had one or more low ...
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3answers
952 views

MTB with gears or non gears, suspension or non-suspension for stunts?

I am planning to buy an MTB for learning stunts...(BTW my family wont allow me to buy a BMX because of its height). So my question is shall I go for MTB with front suspension or not and with gears or ...
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2answers
437 views

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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2answers
2k views

Chain “vibrates” on higher gears

My freewheel that I have installed myself only 1.5 years ago has totally worn out by the moment and so I just had it replaced along with a chain at the workshop. I'm still concerned though about the ...
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1answer
57 views

Indexing 6 sprocket rear derailleur, having trouble reaching largest sprocket

I'm trying to index my rear gears after replacing my 6 sprocket freewheel. I've set the limit screws fine, but I didn't have enough play in the barrel adjusters to make much adjustment, so I undid the ...
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1answer
66 views

When I shift to the smallest cog, it's suddenly too loose

The other day I was riding with the chain on the smallest cog in the back (and the middle chainring in the front) and suddenly something felt like it slipped and the chain was suddenly way too loose. ...
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1answer
30 views

How to fix the tension in these shifters?

I have these shifters in my old bike and it has problems with the gears because the shifter for the front gears doesn't change the gears at all. It seems like a tension problem. So I need to make the ...
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3answers
205 views

SRAM compatible 11 speed 12-25 cassette?

I'm looking for an 11 speed 12-25 cassette compatible with a SRAM drivetrain, however I don't think SRAM makes one. They list specs for their 11 speed cassettes as follows: 11-25: 11,12,13,14,15,16,...
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1answer
100 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 ...
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3answers
642 views

Can't shift to gear one or two

I had an issue where every time I put my bike in gear 3, it would just keep "skipping". By this I mean that it wouldn't stay in gear 3; the chain would go onto it, then fall onto gear 4, then go back ...
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1answer
605 views

SLX chainring compatibility

I'm considering swapping the inner ring on my SLX double chainset (M665) from 22T to 28T. I noticed that the newer M675 has a 40/28 option, so I figured that the 28T chainring from this set-up would ...
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3answers
768 views

My back wheel isn't connected to the gears

I have an old bike it says Via Montega on the body if that helps. I was ridding it earlier when the peddling stopped resulting in forward motion. I thought the chain might have come loose but it is ...
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1answer
254 views

When I press on pedal, intermittent loss of power

Recently, when I cycled my bike the pedals would jump when I pushed down on them. I brought it to a shop who replaced the cassette, the chain, the two crank arms and probably the crankset. I have also ...
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3answers
4k views

Gear up-shift not smooth

When I am pedaling hard and shift to a larger sprocket, the shift is not smooth or sometimes doesn't happen at all. Sometimes even double up-shifts don't work. There is no problem shifting when I test ...
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2answers
19k views

How do I adjust my 7-speed Shimano SIS indexed shifter not to miss out one of the cogs?

I have a 7-speed indexed twist-grip gear-shifter, but it was set up incorrectly: it has eight positions, the fourth is where the numbers start showing, and while it hits the top and bottom gears, it ...
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1answer
2k views

Mixing 9-speed Tiagra and 9-speed Deore XT

I currently have a road bike with the following setup for the gears: 9-speed Tiagra front and rear derailleurs, Sora shifters, all from 2009: 30/39/52 Crankset 11-25 Cassette. I need some more low ...
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2answers
578 views

SRAM force rear shifts go in the wrong direction when on largest cassette

I got a new bike about 6 months ago with SRAM Force on it. It's my first time riding SRAM and I love it except for one thing: If I'm climbing and my RD is shifted all the way up ( to 28-tooth ) and ...
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2answers
4k views

Will 10 speed cranks work with an 8 speed freewheel?

I'm looking at building a road-bike, and I've just purchased some wheels with campagnolo hubs, with an 8 speed freewheel on the back. Can I use Campagnolo Daytona / Veloce cranks on the front? I ...
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2answers
17k views

Difference between Shimano HG51 8-Speed Cassette and Shimano HG50 8-Speed Cassette

Can anyone tell me the difference between Shimano HG51 and HG50 8-Speed Cassettes? I can't find any information online about this so was hoping someone might be able to help me. I am looking to ...
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1answer
321 views

Bicycle is Having a hard time Shifting — especially gears 13 and 14

21 speed commuter bike. Raleigh 2011 brand. After my gear shifter cable was broken, I took it into the shop to get it fixed. (4 days ago). Ever since, when shifting, it takes forever to actually ...
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1answer
340 views

Are faceplates for different shimano brifters compatible?

I got a used brifter and the faceplate fell off. I am pretty sure it was a 105. It works well enough but it looks shitty. Does anyone know if I can just order whichever shimano brifter faceplate, and ...
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2answers
109 views

chain jumping when puilling away in a higher gear

I replaced the rear cog as the chain I had snapped and I thought it had taken some teeth off. Now when I pull away in 1-3 gears it's ok, but if I am in gears 4-7 and I try to pull away ( say I have ...
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2answers
132 views

Chain rubbing on new derailleur and crankset

My bicycle is a Rockrider 520. I have replaced my front derailleur with Shimano Acera FD-M390 and my crankset with Shimano Acera FC-M391. But chain is rubbing inside of FD even when FD cable is not ...
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2answers
4k views

Bike won't shift into 2 largest rear cogs (lowest gears)

I replaced the rear derailer on my bike after Schwinn sent it to me. The old one had a bent piece. I can't shift onto the largest 2 rear gears. I set the shifter to the lowest setting, but the chain ...
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2answers
162 views

Can I install a double chainset on a bike that was originally designed for a triple chainset?

I have a BTwin Triban 3 which has a triple chainset that needs replacing. I am thinking of replacing it with a double chainset this time. Is this possible, or do I need new shifters and a different ...
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1answer
131 views

I've decided on Bar End Shifters for my Vintage tour bike rebuild. I think I've got it down to these. Any reason to choose one or other?

The contestants: Shimano SL-BS64 Ultegra Bar End Shifter Set (8-Speed) and Dia Competition Grand competition ENE bar end control. Seem fairly similar and both well loved. I'm aiming at pairing ...
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2answers
389 views

Bent front-derailleur

I biked to school today with my bike in perfect condition. Locked it up and went to class. When I went to my bike a couple hours later, the derailleur was bent out of position. My bike's front gear ...
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1answer
446 views

How to check if the gear shifter or the gear itself is broken?

I'm not a bike expert so I'm not sure if I'm using the proper terminology here. So I bought a used city bike. It's the first time I see such gear and such a bike actually. It looks almost like this ...
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1answer
47 views

Changing Frames

I just had a crash and wrecked my Cube hardtail mountain bike. Can I put all the parts, wheels, Reba Rock Shock, Shimano gears etc off my hard tail on to a full suspension frame?
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1answer
328 views

Change Shimano FC-M431 Octalink crank arms to Shimano SLX

I won a good deal for a Shimano 2012 SLX FC-M660 set, excluding bottom bracket and crank bolt. Is there any chance I can upgrade my touring bikes FC-M431 Octalink somehow without changing the chain ...
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1answer
1k views

Gears jumping/slipping from the rear cogset on a new bike

Its been 1 month since I have bought my new MTB (Kross globate 1.1) with 18 gears (shimano).. Now the problem is chain has slipped twice while riding. First time my speed was around 25kph and second ...
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1answer
10k views

RevoShift Friction: shifting to the largest gear takes a lot of force?

My wife's bicycle has Shimano Revoshift shifters, and while the right (rear) one works fine, the left (front, Friction) has been problematic for a while. Originally, when we bought the bicycle, the ...
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1answer
294 views

Do faired recumbents need more gear range?

I am researching into faired recumbents, bicycles or trikes, such as the Velomobile Quest or the Sunrider. I'm interested in cycling long distances as a daily commute and for touring, but have no ...
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1answer
40 views

9s rear deraullier with 10s chain

I have a 9s rear derailleur in a 10s transmission. It works fine, but I have concerns about if this configuration could produce problems in the long term. I know the 10s chain is narrow compared the ...
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1answer
46 views

Do all 10-speed chains fit 3x10?

I'm wondering if all 10-speed chains fit to 3x10. A lot of webshops say that the chain is "for road bikes 2x10" or something like that. Or nothing at all. The chain I have right now (Shinano CN HG-54) ...
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1answer
100 views

24 gear SRAM shifters- PROBLEM

So recently i bought a carrera vengeance for £45 which is a bargain and the only problem was the gears(24 gear SRAM shifters) for the left side. When i got it i tried to shift but it just clicks and ...
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1answer
145 views

Front and Rear speed shifters aligment guide

How to align the front and rear speed shifters ? My chain dropped from the front chain ring, and I put it back on the first gear I found, then the rear one fall off, and I put the chain back on the ...
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1answer
619 views

Is reverse pedaling good for smooth gear change?

I am newbie for cycling. When I change my gears, some lock sounds are coming from the chain. But if I do reverse pedaling while switching gears. No sound form chain, but gear switched to the right ...
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2answers
66 views

Restoring a 16"

This here is my 16" bike which I'm going to at least try restore. I've put some wider bars on it, fixed loose things etc. My friend removed the pedal back but I don't think he has put it back together ...
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1answer
503 views

Can I change the rear cassette on a folding bike?

I currently have a folding bike (think Dahon like) with 20" wheels and a front chainring of 52T and a rear cassette of 14-24T. Although 14 provides me with good speed I'd love to get faster speed for ...