Mechanism to move the chain from one sprocket to another.

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11
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1answer
6k views

Chart for bicycle component quality?

I'm not very familiar with all the different component groups available and wondered if there's a chart that ranks their quality (or price). So I'd know that Shimano 105 is the same level as SRAM ...
2
votes
1answer
423 views

Can I use microshift bar end shifters with 9-speed deore lx rear derailleur and 10-speed cassette?

Can I use indexed 10-speed microshift bar end shifters (on retroshift levers) with 9-speed deore lx rear derailleur and 10-speed 11-36 cassette? If not, What rear derailleur would work with the ...
3
votes
1answer
306 views

Anyone know the pull ratios of Zee 10sp and XT 9sp Mechs?

I'm putting a bike together from a load of spares and I'm having difficulty getting a shifter and derailleer to play well. I think the problem is the Zee mech. Does anyone know the pitch/pull ratio in ...
4
votes
1answer
1k views

upgrading an old bike gears and shifter

I don't have a whole lot of knowledge on this, but here goes. I have an old Murray Ultra mountain bike (prob. 15 yrs.+). It is a 15 speed bike, with a 5 speed freewheel. The whole Shimano system is ...
1
vote
1answer
565 views

front derailleur slipping?

I recently started to have a problem where the chain randomly goes from the large front gear to the smaller one. Ive been trying to work out the reason for this and would like some input on the more ...
1
vote
1answer
3k views

Sora front derailleur set up

I'm trying to get my front derailleur to stop rubbing in the high gears, smallest sprockets. To do this I am attempting to follow this guide by shimano: ...
2
votes
1answer
181 views

Where is the Tricross Sora front derailleur barrel adjuster

It's supposed to be on the outer casing (according to the shimano manual) but the Tricross has internal cable routing. Anyone know where it is? I really don't see it but I might be being a bit ...
1
vote
3answers
3k views

Front Derailleur Not Working

I recently bought a new bike off of BikesDirect. http://www.bikesdirect.com/products/windsor/wellington2_IX.htm However, no matter what I do, I can't seem to get the front derailleur to do anything. ...
5
votes
2answers
3k views

Upgrade Shimano from 9- to 10- speed

I'm thinking of upgrading the 9-speed Tiagra rear mech on one of my (road) bikes to something, still Shimano, but 10-speed. The obvious replacements I'll need are cassette, right-shifter and chain. ...
6
votes
4answers
566 views

Comparing gear ratios on different bike types

How can I compare gear ratios on different wheel sizes? How can I compare gear ratios on MTB with tracking bikes with bigger wheels? How can I compare gear ratios with gear hubs?
3
votes
2answers
124 views

Are derailluers always or usually compatible with any cassettes?

Is it OK to choose a derailleur without taking into consideration the cassette that will be used with it and vice-versa?
1
vote
3answers
222 views

Are shifters compatible with different derailleurs?

Can I simply choose one shifter without taking into consideration the derailleur that will be used with it and vice-versa?
1
vote
1answer
993 views

Can you use a 6/7 Speed Derailleur on a 5 speed bicycle?

I bent my derailleur beyond repair today. I'm an inexperienced cyclist. I have a 5 speed Takara. Can I/Should I replace it with a 6/7 speed rear derailleur? I am having trouble finding a 5 speed one ...
3
votes
1answer
408 views

Why is my front Derailleur not shifting as smooth as it used to?

I have a Specialized Hard Tail 10' Model. When I ride and am shifting to the bigger gear on my front derailleur it isn't as smooth as it used to be or sometimes doesn't shift to the gear I'm going ...
3
votes
3answers
951 views

Front derailleur sticking, not shifting. Will soaking in solvent damage parts?

I've got an older deore lx front derailleur for a mountain triple crankset. It wasn't shifting properly, and it seems that it's sticking and not returning back to a neutral position when I shift it. ...
4
votes
1answer
314 views

Should replacing the rear derailleur on my 80s road bike with a Campy Nuovo improve shifting?

I'm considering replacing the Simplex SX410 derailleur for a Campy Nuovo Record on my early 80s Mercier (6-speed cassette). Reason being that there has been for several years now a problem shifting ...
1
vote
1answer
310 views

34.9mm front derailleur on steel frame?

Can I fit a 34.9mm front Shimano derailleur on my steel frame? I understand that steel frames are narrower. However, is there some sort of adapter that I can use, or can I even wrap the frame around ...
3
votes
1answer
554 views

What can be used to replace a Shimano 105 5600 long-cage derailleur?

I have a Fuji CCR3 with a triple in front, 9-speed casette in back. It came with a Shimano 105 5600 derailleur, but no local shops stock those. I've also been told that the 5600/5700 are 10-speed ...
16
votes
1answer
944 views

Relative efficiency of different commute bike setups

My interest is in long distance commuting (e.g. more than 50 km a day) and the relative efficiencies of different commute bike setups (e.g. drop bars vs flat bars, fenders vs no fenders, panniers vs ...
3
votes
1answer
611 views

Campagnolo QS Front Derailleur/Shifter Compatability

I have older Campagnolo Chorus 10-speed shifters. They are marked 'Carbon BB System'. I am replacing my front derailleur and have a spare 10-speed Record QS front derailleur. QS stands for Quick ...
3
votes
1answer
1k views

9 Speed Road STI + MTB Derailleur

Apologies if this is is obvious or has been answered before. I'm looking at setting up a touring bike, using road STI levers (Shimano or equivalent, looking at Tiagra 3x9 or possibly the Microshift ...
3
votes
1answer
883 views

How can I adjust index shifter so it doesn't skip the second chainring?

I recently replaced my chain and cassette on my commuter bike. It was a first time operation for me, as I am a new to doing bike maintenance. That part seems to have gone fine. While I was at it, I ...
-1
votes
2answers
237 views

the derailer is touching chain and it won't let me go past 14 speed supposed to go 21 speeds

The derailer on my 21-speed bike looks like it's bent. It won't let the chain go onto the 3rd ring of the front derailer so, no I can't shift past the 14th speed. If I try it makes a loud sound, like ...
4
votes
3answers
3k views

Replacing the front derailleur: unlink the chain?

If I want to replace the front derailleur on an already set up bicycle (replace SRAM Apex with SRAM Force), do I have to unlink and relink the chain on order to thread it through the FD cage? Or can I ...
2
votes
2answers
815 views

Can I use a derailleur hanger in my old frame?

I'm trying to adapt an old '83 Fuji Del Rey frame with the parts of my broken '86 Fuji Espree and I'm having problems adapting the Derailleur. The Del Rey frame doesn't come with the little hook ...
4
votes
3answers
3k views

Does a rear derailleur guard provide effective protection?

I recently caught my rear derailleur on a log and snapped it in two. I have done some recent work on some department store bikes and noticed that some come equipped with an axle mounted guard around ...
1
vote
1answer
573 views

Need help choosing compatible rear derailleur, cassette & chain

I just "inherited" a bike that has no rear derailleur or chain. It also looks like the cassette is pretty worn, so I'm thinking about replacing that too. I've looked around on the forum and I think ...
2
votes
3answers
1k views

change derailleur and shifter in an old road bike reconverted to hybrid

I have an old road bike, that I converted to a hybrid bike, I just use it for small tourings. Some time ago I changed the handlebar, the brake levers and the tires. Recently the derailleur broke up, ...
18
votes
6answers
3k views

Is there such thing as an automatic transmission for bikes?

Has anyone ever designed or manufactured and automatic transmission (automatic shifter?) for cycling? I imagine such a device would automatically change the gearing to allow the rider to maintain ...
3
votes
1answer
264 views

Specialized Hardrock rear hanger

I just fixed my first puncture on a recently bought Hardrock (Evans)and discovered that the rear hanger is not attached to the frame. This made refitting the wheel a bit of a struggle. There is a ...
2
votes
1answer
504 views

Front derailleur doesn't change from grear 1 to gear 2

I have a Shinamo Tourney front derailleur that doesn't change well from gear 1 to gear 2 (I'm new to bicycles so I don't know standards, so I think I should specify that gear #1 is the smallest). In ...
4
votes
2answers
3k views

Determining which derailleur hanger is compatible with a frame

When your derailleur hanger needs replacing, is there a good resource for matching frames to hangers? Mine was recently bent, so I had to dig through some websites and compare pictures of the hangers ...
1
vote
1answer
674 views

Is an Acera cassette compatible with an 8-speed Deore rear derailleur?

Is this Shimano Acera 8-speed cassette and chain compatible with a Shimano Deore 8-speed rear derailleur on my mountain bike?
0
votes
2answers
213 views

Unable to change from 14th to 7th

I've got a bike that I have had for about 8 weeks and it has already been back to be serviced twice. It's just returned from the second service and I've noticed that it is not shifting from 14th to ...
-1
votes
1answer
192 views

Chain fell out of rear derailleur when wheel off.

I took my rear wheel off to fix a flat and hung the bike up by its front wheel to store. when I returned to put the tire back on the chain had slipped totally out of the rear derailleur, caged jockey ...
4
votes
3answers
9k views

Can I fit a cassette with a larger range with my Shimano Tiagra 10-speed ( GS-4600) derailleur?

I'm currently running a 2x10 shimano tiagra 10-speed drivetrain with a 50/34 compact crankset, a 12-30 rear cassette, and a Shimano Tiagra GS-4600 derailleur (that's medium cage aka road long cage) on ...
1
vote
1answer
392 views

Fitting a rear derailleur

I'm building a bike from old bikeparts, but i've got a problem. The part that connects the derailleur with the frame doesn't fit, and I thought I would find something on chainreactions, but I can't ...
0
votes
1answer
914 views

Change my Shimano SIS rear derailleur of 7 speeds to a better one?

I recently broke my rear derailleur of my road bike it was a Shimano SIS 7 speeds, so I am thinking if I can get a better one like a sram or deore or I don't know. Thank you for your help.
3
votes
1answer
602 views

How do I properly adjust a front derailleur?

I have a Shimano FD-TX50. How should I adjust it?
4
votes
2answers
595 views

Converting crankset from 28-38-48 to 30-39-53

My current front setup is a 28-38-48 crank with Deore XT shifter & derailer. In addition to a FD-443 and top/bottom-pull converter, what else will need to be purchased for proper shifting? Also, ...
4
votes
3answers
931 views

Where are my barrel adjusters for my shifting cables?

I have a Devinci Caribou I and I was trying to adjust the front derailleur. I got the top and bottom stops adjusted right, but it seems that it doesn't downshift correctly from the biggest cog to the ...
1
vote
1answer
619 views

rear Derailleurs of 7 speeds for road bike?

Hello everyone I recently broke my Derallieur in my Road bike and I am planing to get a new one online but I dont know exactly wich one to get is for the rear Derailleurs of 7 speeds. thanks
3
votes
1answer
760 views

Converting a short cage derailleur to a long cage derailleur

Is it possible to convert a short cage derailleur (for example the huret svelto) to a long cage derailleur by just taking the lower cage and replacing it by a longer one?
3
votes
1answer
356 views

Short cage derailleur: how to find out maximum sprocket differences?

I'm building a kind of new bike and would like to put a triple or compact crankset on it. I've still got this NOS huret derailleur set (front, rear and shifters) laying around which would match the ...
2
votes
1answer
3k views

Which derailleur should I use with a Shimano 7 speed freewheel 14-34T megarange?

Which derailleur should I use with a Shimano 7 speed freewheel 14-34T megarange in order to prevent the derailleur from rubbing the cassette in 2nd.
6
votes
3answers
2k views

Why does my bike stick in low gears?

When I change into a low gear (i.e. onto a bigger cog) on my back cog all is fine. However, when I later change up again the chain sticks on the larger cog. I commute about 10 miles a day and this has ...
2
votes
1answer
379 views

Biopace chain rings and front deraileur rub

Turns out my front chain rings are biopace, after I thought they had disappeared! I've got a problem with the chain rubbing the front deraileur at a certain point every rotation. I only get this in ...
4
votes
2answers
2k views

Is it practical to replace two sprockets on a cassette?

My bike has 53/39T chainrings and a cassette with 12,13,14,15,17,19,21,23,25 sprockets, but I like to ride up steep mountain roads. Is it possible (without great expense) to replace two sprockets to ...
6
votes
4answers
22k views

Can a rear derailleur be used for either a 9 speed cassette or 10 speed cassette?

I currently have a 9 speed 11-25T cassette on my road bike. I'm thinking about switching to a different cassette with more teeth on the climbing gear. The cassette I'm currently look at is a Shimano ...
8
votes
2answers
6k views

Chain slipping off derailleur jockey (need suggestions ASAP)

Last week, I had to abandon a training ride due to my chain slipping off my rear derailleur jockey. This would only happen when shifting, and most often when either shifting chainrings or shifting ...