All Questions
5 questions
24
votes
2
answers
2k
views
Selecting the right crank length
What is the best way to determine the correct crank length for my height and more specifically my leg length?
- 353
13
votes
4
answers
10k
views
Differences between Biopace and Rotor cranks
On mountain bikes of a certain age, "Biopace" chainrings are ubiquitous. These chainrings are (purposely) not circular. It seems that most people today agree that Biopace rings didn't live up to the ...
- 1,422
22
votes
7
answers
4k
views
Are Z-shaped cranks a good idea?
I've stumbled across this kickstarter project, which promotes an original shape for cranks:
They claim a wider arc of useful push during rotation. While their main point is rendered moot by clipping ...
- 685
6
votes
2
answers
36k
views
Why does my non-drive side crank arm come loose?
I tighten the bolt super hard. Ride for a while. Then it comes loose again. I don't know if its my BB or the bolts. How can this be fixed??
- 61
2
votes
1
answer
281
views
What is this crank part called?
I recently had a Shun SS-8001 crankset fail. When taking it apart, I saw that the right pedal has a sort of stop ring that prevents the pedal, presumably, from unscrewing itself:
Now I need to find a ...
- 1,067