Questions about shifting between gears or the shifters themselves.

learn more… | top users | synonyms

2
votes
1answer
272 views

Replacement Brifters for a shimano 105 2x10

I have a 2009 Specialized Allez Sport C2. It came with shimano 105 components all around. the left hand (front) shifter recently broke, and will no longer hold a position. I can reach down and ...
1
vote
1answer
477 views

Shimano Acera Shifters - How to remove gear cable

I need to change the front derailleur gear cable on my bike. I've removed the cable from the derailleur itself, and now need to detach it from the shifter on the handlebars. On my previous bike, ...
2
votes
1answer
214 views

Trigger Shift equivalent to SRAM MRX 21 speed on Btwin Rockrider 5.0

I've a Btwin Rockrider 5.0 which comes with SRAM MRX Twist Shifters (21 spd 3x7). But lately they have been giving me problems in shifting, I've had bad experience with twist shifters earlier also( ...
1
vote
1answer
84 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 ...
3
votes
2answers
564 views

Are Claris(ST-2400) shifters drop-in replacements for St-2300s?

I've got 2300s on my bike. I don't much like the little thumb levers. I'd like to upgrade to Claris shifters, but I need to minimise the costs. Can I just change the shifters? They're both 8 speed ...
2
votes
1answer
105 views

Replacing a shifter

One of my plastic shifters broke and I am looking for a replacement on the internet. How do I know whether a replacement will fit my handlebar. Are all handlebars the same size?
1
vote
1answer
63 views

Which Mountain Style Shifter for Early 90's Shimano 105?

Converting early '90's Trek 1400 from traditional road bars to a flat/straight mtn bar. Converted V-brakes over to use Deore brake levers. Works well. Need to get the shifters up to the bars, ...
8
votes
5answers
861 views

Pedaling not connecting right away

I ride a rather usual Merida hard-tail mountain bike. Recently I've come to notice that when I start pedaling (bike already in motion), it can take up to as much as quarter of a turn for the pedals to ...
2
votes
1answer
142 views

Difference in brakes and switcher cables?

I want to change all the cables in my bike. My knowledge in bikes is limited. As i found there are cables for the brakes and cables for the shifters. My question is: are those cables all the same? ...
0
votes
1answer
81 views

The shifters and brakes are one piece

I found this old junkie bike and I want to use it. I don't have very much experience with bikes, and I noticed that that the speed shifters and the brake handles are one piece together. Is that ...
1
vote
1answer
623 views

9 speed cassette and 7 speed shifter

So I bought a new (used) wheel set for my mountain bike and it came with a 9-speed cassette. I currently have 3x7 rapid shifters, which presents an incompatibility. I'm wondering how to fix this ...
1
vote
0answers
162 views

Shift lever and boss (mount point) compatibility matrix

I've looked online, but haven't found one. Is there any sort of "matrix" available that puts shift lever boss type on one axis and shift lever on the other, and remarks on each pair's compatibility? ...
0
votes
1answer
4k 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 ...
0
votes
1answer
608 views

Partially disassembling Sticky Shimano STI shifter for service

There are a few questions floating around regarding sticky STI shifters and the standard procedure seems to be to flush with a load of WD-40 and relube with aerosol grease or similar. My set is ...
0
votes
1answer
346 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 ...
1
vote
2answers
261 views

Shimano Revo shifter does not shift [closed]

I have recently bought a new bicycle and the left Shimano Revo shifter (3 speed) is not shifting, what can I do?
3
votes
3answers
908 views

SRAM Rival front derailleur throws chain to the outside, even after professional adjustment

TL;DR: if you have a SRAM Rival front derailleur I'd love to know if yours looks "funny" like mine does--it's described in bold. I have a SRAM Rival groupset (from late 2011), including front ...
1
vote
1answer
2k views

How to reassemble a Shimano Alivio Shifter

I need a diagram on how to reassemble a Shimano Alivio Shifter. I just can't seem to get it right. I even disassembled the other shifter to see how it all fits together and now I can't get it ...
1
vote
1answer
169 views

How can I stop my shifters slipping when climbing?

I'm having trouble with my rear mech and/or shifters. Under heavy load (say, when climbing) the rear mech is slipping. The two photos below show my shifters before and after a climb. I've not touched ...
3
votes
1answer
2k views

Can I run 2x10 XT Shifters on a flatbar road bike with 105 10 speed STI components?

I want to run 2x10 XT shifters on a flatbar but still want use the 10 speed 105 components of the road bike would there be any problems?
3
votes
1answer
553 views

Shimano 9 speed shifters

I have bought myself a Shimano Deore M592 set without shifters. I am now in the process of getting them as well but am not sure if I can put any 3/9 speed shifter on it. Do I only need to take care ...
9
votes
5answers
14k views

How do I replace road bike hoods?

I commute daily on a road bike with Shimano Tiagra STI shifter/brake levers. The rubber hoods are pretty grimy and getting sticky, torn up and unpleasant these days. Repair and replacement of pretty ...
2
votes
1answer
424 views

Can I use friction shifters with a clutch style rear derailleur?

Can I use friction shifters with a clutch style rear derailleur like the 2014 Shimano Deore M615 Shadow Plus? Or does this put extra tension on the shift cable that will cause slips with a friction ...
3
votes
2answers
718 views

(Automatic Bike Project) amount of torque required to change gears?

I am planning to build an electronically controlled automatic bike transmission for my senior design project. I'm personally more of an electrical guy, so dealing with the mechanics is somewhat new to ...
1
vote
1answer
334 views

Campagnolo Athena 9 speed compatibility?

I own some NOS shifters, Campy Athena 9 speed, from 1998 i guess. do you guys know if I can use it with any campagnolo front/rear derailleur? how do I know what is compatible?
6
votes
4answers
252 views

Electronic shifters

I have been reading alot about the electronic shifters that are out now, specifically the ones on TREK bikes. I was wondering if they are worth the price, and more importantly how do they perform.
5
votes
4answers
10k views

How to repair sticky Ultegra shifter

I have Ultegra 3x9 shifters and derailleurs that were installed just a couple months ago. I purchased them on eBay and although they were new, they had been sitting in inventory for a couple years so ...
1
vote
1answer
566 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 ...
6
votes
1answer
628 views

Shifters and internal gears

I have an Airnimal Joey with 8 (internal, Shimano Inter 8) rear gears. I wanted to install drops handlebars and the shifters. I got the Shimano Sora ST-3300-8 Right / Rear 8 Speed Shifter, which I ...
2
votes
1answer
807 views

Can I run a SRAM road rear derailleur with downtube shifters?

Can I run a SRAM road (apex/rival/force/red) rear derailleur with downtube shifters? I though you might be able to mount the bar-end shifters on downtube, but it seems like they are a ratcheting ...
2
votes
0answers
266 views

Change the angle of the arc of downtube / stem shifter lever to make it an alternative thumb shifter?

I want to mount the following SunRace clamp-on shifter set horizontally as a "thumb" shifter on a straight MTB handlebar (22.2mm). I will remove the left lever and only use the right with the clamp. ...
2
votes
3answers
278 views

reliable bike shifting

I've recently had 2 bikes (Trek and Giant) of the hybrid style. The frame style was comfortable but both were difficult to change gears. When going up an incline, I would shift to a lower gear. The ...
1
vote
1answer
247 views

Compatibility for old Sram 7-speed shifter

A buddy asked me to fix his bike. The shifter is broken. It's an older bike with a Sram SRT300i-71 shifter. I found an exact match on that is fairly cheap on ebay, but I also found a similar model on ...
1
vote
2answers
2k 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?
5
votes
4answers
3k views

What to buy when looking for a low maintenance city bike that allows sportive riding

I just want to replace my good old 50€ used Peugeot City Bike, that has served me well for the past year, but has some problems (like ribbed Steel Rims) that are hard to overcome. I want something ...
1
vote
1answer
284 views

First time buying parts ( derailleur, chain, rear axel, shifters) need help!

I have a 21 speed (3 front, 7 rear) NEXT bicycle ( model number 8568-49, year 2007.12.06) sitting in my back yard at the moment a few missing parts and I was hoping to get some help on what to get and ...
2
votes
0answers
325 views

My left STI shifter has 5 positions for a double crankset?

I'm in the process of installing my Shimano Tiagra left shifter for the front derailleur on my double crank and I'm a bit confused, the indicator shows it has 5 positions for a crank with only 2 ...
4
votes
2answers
5k views

Can I convert flat bar to drop bars on a hybrid bike

I'm fairly certain that the bars should change out quite easily; I'm more concerned about the shifters and brakes. Currently I have a hybrid 18 speed with cable disc brakes and Shimano Deore XT ...
7
votes
4answers
9k views

Bike is shifting on its own

Ever since I got my bike (Surly Long Haul Trucker), it has been prone to shifting on its own. This is almost guaranteed to happen when I stand up on the pedals, and happens regularly when sitting as ...
3
votes
1answer
365 views

Nexus shifter with Alfine hub

Is it ok to use a Nexus 8 speed grip shifter with an Alfine 8 speed hub? The Alfine shifters seem to be all trigger shifters is that correct?
1
vote
1answer
32 views

Twist shifter spacing between 6 & 7

My new cruiser bike has a twist shifter on the straight handlebar. Why is there more space on the dial between the numbers 6 & 7? The space between every other number is the same, except between ...
2
votes
1answer
2k 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
3answers
142 views

How to repair shifter housing

I have shifter with damaged housing. It shifts well, but I guess if housing is not repaied, rain and elements will quickly put an end to it. Which material would be suitable to fix this hole? Epoxy ...
4
votes
1answer
5k 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 ...
2
votes
2answers
6k views

7 speed to 8 or 9 speed cassette change

this is my first time here and i am new in the bike sport. I have a mtb for a month now and i usually use it for road trips with some dirt intervals. It has a 7 speed shimano cassette (14-34) and on ...
3
votes
1answer
626 views

Looking for components needed to route 3 cables on top of toptube for cyclocross bike

My bike is setup for cable routing under the downtube. I would like to route my rear brake, front derailleur, and rear derailleur cables along the top tube of a bike I plan to use for cyclocross to ...
2
votes
1answer
524 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
4answers
858 views

modernizing shifters

I want to replace my old lever shifters (Shimano 515) with something a bit more modern. Can I do this without replacing the front and rear derailleurs. And which shifter would be a simple, and or ...
4
votes
1answer
397 views

Shimano Sora shifter having trouble in the snow

So today is the first day of snow here in Norway, and I had prepared well for this day. My Giant Cyclocross has new spiked tires and i've done a check on all components, they are ready for the ...
3
votes
1answer
458 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 ...