Mechanism to move the chain from one sprocket to another.

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2answers
171 views

chain getting stuck between chainrings

I have an old Cannondale road bike with Suntour shifters. When I shift from the front middle ring to the small inner-most ring, the chain falls into the gap and binds tightly between the two rings. ...
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1answer
69 views

Chain brushes derailleur

I just got my ever first road bike, Revenio 3.0. I'm so excited. Already got my ever first road bike injury as well - those damn cleats are hard to unclip, springs on those shiny new pedals are too ...
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3answers
257 views

Can I replace the front front derailleur with chain guide?

My front derailleur (Shimano LX T670 / 34.9mm) has been stuck on the highest gear for a couple of weeks now which has got me thinking about how little I use it. To save weight could I replace my front ...
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2answers
74 views

Looking for a narrow-cage 16T capacity FD

I'm putting a 46x30 chainring with a pretty narrow tread on a frame. On the advice of my LBS I got a Sun XCD double FD, but I'm starting to think it's not right for this application. When I have the ...
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1answer
133 views

Did the Giant Trinity A1 come with a derailleur hanger?

I am putting a bike together and have it all apart but don't see the derailleur hanger anywhere. Did I lose it or did the bike not come with it? If it didn't come with it, why not? Thanks.
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1answer
221 views

derailleur P-screw/B-screw does absolutely nothing

I know dérailleur adjustments are frustrating, but this is the 4th day i'm working on this... i stop working just before the rage kicks in and leave everything to continue another day :) The problem ...
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1answer
176 views

Front derailleur cable change

I changed my shifters and need to change my front derailleur cable. I just don't know how to proceed exactly. A guide I found told me to: on big sprocket, small plate (is that the english word?? ...
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1answer
683 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?
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1answer
489 views

ideal dérailleur height for a Deore on a Biopace?

Reading on every site about front dérailleur adjustment, the distance from the bottom of the outer dérailleur plate to the bigger crank cog should be "one penny". Mine is around 1cm! it does shift ...
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1answer
92 views

Chain Slipping?

I am not the most knowledgeable when it comes to bikes so please bear with me. I have a Claud Butler and after fixing a puncture I decided to ride it. As I was riding, I could hear a sort of rattling ...
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1answer
117 views

Front derailleur adjustment

I need some advice on properly adjusting the front derailleur (shimano -tourney) of my bike. I did watch youtube videos and stuff on the internet but was not able to adjust it properly. When I ...
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1answer
720 views

Shimano RD TX55 Tourney TX 6/7 Speed Compatibility

I currently have a 7 speed bicycle, and recently changed my rear derailleur to a Shimano RD TX55 Tourney TX for a 6/7 speed compatibility. My shifter is Shimano Rapidfire for 7-speed. The current ...
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1answer
103 views

Trek 6500 rear derailleur

I am rebuilding a Trek Mountain Bike model 6500 built in 2005. I don't see a model number on the Shimano Deore rear 8 speed derailleur that needs replacing. Is there a hidden model number somewhere ...
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1answer
388 views

How long does a shifter, rear mech and front mech last?

I am talking about absolutely dirt cheap components which are non-branded. In terms of number of kilometres how long do they last? The bicycle is ridden on city and country roads and maintained ...
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2answers
1k views

Are Shimano R440 road flat bar shifters compatible with a mountain bike front derailleur?

The Shimano shifter flat bar series have the same cable pull length than the mountain bike shifters. Is this series compatible with a mountain bike front derailleur, Deore, for example?
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1answer
581 views

Chain guards for front derailleurs: Metal alternative to SKS chainboard?

Can anyone recommend an aftermarket, front-derailleur-compatible chainguard (along the lines of the SKS chainboard) that's not made of plastic? Maybe something like the one on the Marin Bridgeway ...
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1answer
2k views

How to setup triple front derailleur with a double crankset

I want to use my front derailleur which is a tiagra on a 3x10 speed setup with a compact double crankset making it a 2x10 setup. What is the proper procedure for setting up the triple chainring ...
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1answer
144 views

Rear derailleur speed number interchangability

I have a bike with an 8-speed cassette and would like to switch to 9-speed cassette. Can I keep my rear derailleur? which is a Shimano Alivio one? I understand the indexing might mess up this, but I ...
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1answer
1k 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 ...
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1answer
315 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 ...
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1answer
579 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 ...
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1answer
637 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
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0answers
42 views

Stuck and stiff sora front derailleur

I have a used 2011 trek 1.2 compact road bike with a stiff Sora FD-3400 double front derailleur. Shifter seems very stiff, and when I shift above the second index (trim or third) by accident it gets ...
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0answers
67 views

How can I fix my rear derailleur's B-tension adjustment?

I've noticed that my rear derailleur (Ultegra 6700) will not return to where I've set the B-tension adjustment. Pulling it away from the hanger means it will just stick there, or maybe move back a ...
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0answers
97 views

Play in Jockey wheels Sram X7 rear derailleur

I have an SRAM x7 rear derailleur only been using it a few months (through the rain) and the jockey wheels seem in a bad way. There's a lot of side to side play in them and the teeth look sharp when i ...
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1answer
118 views

My front deraileur needs adjustment after every ride

I have a Cannondale Women's Adventure 1 that I got this spring and have been riding on local (paved) trails every weekend. I started off riding about 6 miles a weekend and recently have progressed to ...
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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 ...
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2answers
2k views

Shimano 105 5600 derailleur compatability with 105 5700 11-28 casette

My current cassette is a 105 5600 12-27 the front is a 105 5600 53/39. I want to go compact so will the Shimano 105 5600 rear derailleur support the 105 5700 11-28 cassette?
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1answer
61 views

My chain came out of dérailleur frame, but gap seems too small, am I misunderstanding something?

So the chain came off my bike on the way to work this morning, but when I tried to put it back on, it seems like it has also come out of the dérailleur frame, but the gap where it seems to have come ...
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1answer
545 views

What tension should the front derailleur cable be when setting it up?

I'm attempting to setup my front derailleur. I've slackened off the cable, adjusted the L screw so the derailleur just clears the chain. What position should the adjusting barrel on the handles be set ...
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3answers
1k views

Getting a dura ace 7800 derailleur to work with 10 speeds

I have a bike set up with a dura ace 7800 derailleur, specifically listed as a 9 or 10 speed model. I am interested in getting it working in the 10-speed configuration. Two things: I remember ...
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1answer
82 views

how to adjust the derailer - apart from the L/H limiting screws

Pardon my newb terminology. My bike's chain will not stay on the H gear (the big ring) The front derailleur will not allow it. I have loosened the limiter screw out to it's maximum and, still, no ...
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2answers
63 views

Can I change my 7-speed rear derailleur to an 8-speed?

I bought a 2013 Cannondale Quick 6 Hybrid for my daily commute almost exactly a year ago, and I'm looking to give it some upgrades. It currently has a 7-speed Shimano Altus derailleur, and I was ...
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1answer
41 views

Problem with changing to high gear on the front derailleur on my new Bianchi Spillo Rubino Altus Rigid

It's a 24 speed bike with 3 gears on front (Cranks PROWHEEL 48/38/28T) and 8 on the rear. I rode it today and when I was moving the front gear to 3 to move the chain to the large ring I have to press ...
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1answer
60 views

Is this a short cage or long cage rear derailleur? [duplicate]

Is there an easy, objective way to tell?
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1answer
138 views

Replaced faulty Shimano twist shifter but front derailleur still won't catch 3rd

I have one of the ubiquitous Wal-Mart-sourced Chinese Kent bikes, badged as a "GMC Denali." It came with the Shimano RS41 3x7 twist shifters. The front shifter got to where it would not physically ...
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1answer
265 views

Slow switching up higher gears

I have a fairly new MTB and I'm currently trying to tune the gears. Currently I can change down gears pretty smoothly I.e. 6 > 5 > 4 etc but going up the gears is slow for the chain to switch cogs. ...
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1answer
276 views

7 speed front Derailleur on 9 speed crankset

I have 9 speed crankset (44-32-22 FC M542), and matching RapidFire 9x3 speed shifters (FL M590). Can I use 7 speed front derailleur FD M550 in that combination?
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1answer
933 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.
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2answers
152 views

Is it normal for the chain to slip in an 'extreme' gear?

My bike's recently been in for a service so afterwards I checked that all the gears are shifting and working properly. As part of my testing I put some power through the cranks in the photographed ...
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0answers
26 views

How to determine what FD is compatable with a hard-tail MTB frame?

I have a Dartmoor Hornet frame and am attempting to install an SLX 2x10 groupset. However the deralleur is FD-M676, which appears to be 'high clamp'. It is not evident from the pictures, but the ...
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0answers
43 views

Is this FD compatible with this crankset: 2 teeth too litle

I am a proud owner of this guy. The crankset is SRAM S1200, 36/22 and the FD is SRAM X7, direct mount. However, the cage on the FD broke, and I ordered this item in a hurry. 1) Dyna-Sys 10-speed ...
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1answer
334 views

What are the shimano rear derailleur families?

What are the rear derailleur families, offered by Shimano? I need to replace a Shimano Acera derailleur and am trying to decide on a replacement part.
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1answer
143 views

I'm worried about my derailleur snapping. The chain isn't running around the bottom pulley, it's running next to it

I'm worried about my derailleur snapping. The chain isn't running around the bottom pulley, it's running next to it, scraping against the bottom pulley and the frame. When I change gears it makes a ...
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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 ...
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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 ...