Mechanism to move the chain from one sprocket to another.

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8
votes
1answer
194 views

Why do deraillers require a freewheel?

I've seen fixies with internal hubs, but a non-freewheeling rear wheel with deraillers seems to be unrepresented: | Freewheel? | Derailler? | Yes | No | ...
3
votes
2answers
370 views

Rear derailleur and front shifter are not indexing “together”?

So my rear derailleur and front shifter have stopped working together, my shift can shift once up and then nothing. My bike has essentially turned itself into a 2 speed. The shifter is a 2300 shifter ...
2
votes
1answer
908 views

Replaced Shimano Bottom Bracket, now front derailleur won't shift to largest gear

OK, so in my quest to get my old Trek 7000 ZX MTB running again after a long retirement, I am having an issue with replacing the bottom bracket. The bike came with a Shimano LP25 that is marked BC ...
3
votes
1answer
195 views

Direct Mount with top and bottom swing?

I want to buy a new frame that supports Direct Mount. Now I read that Bottom Swing is preferable for hardtails. At the same time, it was also mentioned that Bottom Swing is mounted higher onto the ...
5
votes
1answer
162 views

Are there mechanical advantages and disadvantages of various front derailleur styles?

In general there are: High clamp Low clamp Braze on Top pull Bottom pull And in particular, is any of those better choice regarding reliability and durability for touring bicycle.
3
votes
2answers
342 views

Shimano Alivio with Sora compatibility

I have Giant Defy 3 2012 and I want change handlebar from drop down to straight. I wonder if I can use Shimano Alivio M430 3-9 shifters with my front and rear Sora derailler. Thanks for advice
1
vote
1answer
474 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 ...
5
votes
3answers
599 views

How can I increase the highest gear ratio?

I am looking for some higher cog front gears for an old bike I am considering. I've been away from it for some time and don't know the current number of cogs on the front ring, but I am looking to ...
0
votes
1answer
217 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?
0
votes
1answer
199 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.
3
votes
2answers
236 views

How do I find the right derailleur (gear-mech)?

I have a 9 x 3 speed mountain-bike. The derailleur got broken (and was since lost), I'm trying to find a new one. What do I need to go by to ensure I get a good fit? The rear-casette (sprokets) range ...
3
votes
1answer
1k views

Which pulley is which on my Shimano STX RC derailleur?

I disassembled my rear derailleur to clean it; when I removed the sprockets they basically looked the same; both jet black and caked with all sorts of black grease-like-stuff. I figured they were the ...
3
votes
1answer
2k views

Upgrade Shimano Sora shifters to 105

I want to upgrade my 3x9 Sora shifters to 3x10 105s. However, looking at the Shimano Compatibility Chart, it appears to indicate that I'll have to replace my front and rear derailleurs in addition to ...
1
vote
1answer
1k 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 ...
1
vote
1answer
144 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?? ...
9
votes
1answer
259 views

Setting light to a derailleur

At 3:30ish in this video, they set light to a front derailleur. Why? Degreasing it? Waxy lube that needs melting in? I can't think of a good reason. Any ideas?
1
vote
1answer
125 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 ...
3
votes
1answer
988 views

Using WD40 for cleaning (not lubricating..)

I plan on cleaning/re-greasing my rear derailleur this weekend, something I've never done before. I watched a video on youtube.. the guy wiped it clean first, then used a spray lube (dry I assume?!) ...
1
vote
3answers
481 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 ...
4
votes
2answers
375 views

Different Gear Type when there's no Front Derailleur?

I have a 7 speed Jamis Boss Cruiser, 7 gears in back and one up front. I've been using it fine for several months now. Lately, the chain is coming off of the single front gear, usually after stopping ...
6
votes
3answers
2k views

Apart from the size, is there any difference between chains for derailleurs or for single-speed / internally geared hubs?

I might need to replace my bicycle chain (see this question). The store where I've bought components before (cyclecomponents.com) seems to be entirely marketed to derailleurs, and I have an internally ...
1
vote
3answers
166 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 ...
7
votes
4answers
1k views

Why do current, entry-level shimano rear derailers have large-diameter pulleys?

I have seen (and recently bought) entry-level rear derailers from Shimano (Tourney for MTB, 2300 for road bike), and I keep wondering why they are making these parts with such large pulleys. I don't ...
2
votes
2answers
161 views

Had the front derailleur adjusted, now it feels like the rear is skipping

Here is the short version. I'm all for adding more once I know what that more is to help answer said question. I work on the road. I take my Felt ZW75 ...
11
votes
1answer
5k 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
380 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
265 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
624 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
349 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
2k 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
152 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
2k 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
2k 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
484 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
121 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
188 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
722 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
311 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
750 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
279 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
253 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
458 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
854 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
522 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
829 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
669 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
225 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
2k 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
575 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
2k 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 ...