Mechanism to move the chain from one sprocket to another.
2
votes
0answers
53 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 ...
4
votes
1answer
82 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.
1
vote
1answer
84 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 ...
1
vote
0answers
35 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 ...
3
votes
2answers
77 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
2
votes
3answers
2k views
Determining front & rear derailleur compatibility
I have a 2009 Kona Dew and I'm just wondering how to figure out what front and rear derailleurs are compatible with my bike.
Do I just have to find a matching Shimano part that fits 8-speed gearsets? ...
1
vote
1answer
100 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 ...
1
vote
3answers
160 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 ...
5
votes
3answers
144 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
89 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
88 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
95 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
201 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 ...
6
votes
1answer
3k 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 ...
15
votes
5answers
1k 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
318 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?!) ...
2
votes
1answer
221 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 ...
4
votes
1answer
371 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 ...
9
votes
1answer
224 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?
2
votes
1answer
78 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?? ...
7
votes
4answers
453 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
1answer
62 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 ...
7
votes
3answers
1k views
Why does my rear derailleur keep breaking?
I upgraded my rear-mech with a new cassette, chain and new cables a few weeks ago since then i've mangled two rear mechs!
Both times I've just been riding along; not in a big gear; not at the ...
4
votes
2answers
210 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 ...
5
votes
2answers
552 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
3answers
290 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
115 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 ...
4
votes
3answers
4k 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 ...
2
votes
2answers
104 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 ...
7
votes
1answer
337 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
295 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 ...
2
votes
1answer
168 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 ...
0
votes
1answer
143 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 ...
3
votes
1answer
228 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 ...
0
votes
1answer
370 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:
...
1
vote
1answer
114 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 ...
0
votes
3answers
341 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. ...
22
votes
6answers
3k 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, a part from being heavier, how much will I loose in performance if I use hub gear?
3
votes
2answers
104 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?
6
votes
4answers
293 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?
1
vote
3answers
141 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
347 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 ...
4
votes
2answers
477 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
1answer
234 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 ...
3
votes
1answer
192 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 ...
4
votes
6answers
10k views
Problem with chain skipping without trying to shift (even with new chain and gears)
I have a mountain bike where the chain intermittently skips when put under load on the middle (and very rarely on the smallest) chain ring. It is not related to shifting.
I've taken several steps to ...
1
vote
0answers
155 views
skating on my cassette [closed]
I recently replaced the entire drive train (ie. chain rings, cassette, chain) of my old steel road bike, which has a shimano 105/600 mixed group (14 sp). While I did this work, I also serviced my rear ...
3
votes
3answers
448 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. ...
3
votes
1answer
368 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 ...
15
votes
1answer
644 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 ...
