Mechanism to move the chain from one sprocket to another.
2
votes
2answers
3k views
Road Shifters, Mountain Rear Derailleur?
I have a road/cyclocross/commuter frame that is currently spec'd with road components - all Shimano 105, with an Ultegra rear derailleur.
The cassette (10 spd) tops out at 27 teeth, and the rear ...
14
votes
4answers
12k views
What are the pros and cons of internal gears?
I've had my hybrid 24-speed for a bit over 3 years now, and just last weekend, when looking for a bike for my wife, discovered internal gears. Suffice to say it blew my mind when I saw 7-speed ...
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?
5
votes
3answers
4k views
Is my chain too long?
I'm in the process of setting up a new drive train. When using the smaller chainring and smallest sprocket (hence least amount of utilized chain), the chain brushes up against the bottom of the ...
3
votes
1answer
344 views
3
votes
2answers
11k views
How to calculate the capacity of a rear derailleur
It's easy to calculate what capacity of a rear derailleur will be needed based on the size of the big and small chainring and the big and small cog. What about the converse question, how to calculate ...
5
votes
2answers
550 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. ...
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 ...
3
votes
1answer
628 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
3answers
531 views
What causes my chain to derail at the rear when I accelerate?
I recently bought a beat-up old mountain bike for commuting. I've tried to clean and adjust the derailleurs and everything seems to work well enough in my garage. But when I put heavy weight on the ...
2
votes
1answer
251 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 ...
