Singlespeed & Fixed Gear - Bottom Bracket/Crank Question

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simonaway427
11-02-10, 05:44 PM
I am building a SS out of a road frame that I won in a contest.

This is my first "bottom up" build, so I'm learning as we go along with respect to parts and compatibility. This is a budget build, so please refrain from comments about buying cheap parts :)

For the BB/Crankset combo, I am looking at these items from nashbar:

A run of the mill shimano square taper BB:
http://www.nashbar.com/bikes/Product_10053_10052_194724_-1_201720_10000_200423

And a 46T SS crankset:
http://www.nashbar.com/bikes/Product_10053_10052_519056_-1_202130_10000_200376

My question is what length of spindle should I get? I measured the length of the BB and its 68mm, so I assume I need a 68 x something? There are different spindle lengths ranging from 107mm to 127mm, and I have no idea what i'd need.

Thanks for looking.

gt35built
11-02-10, 05:46 PM
You want us to tell you what bb spindle length to choose and we have no idea what frame you have?
Scrodzilla
11-02-10, 05:48 PM
Please don't listen to gt35.

I'm fairly certain that Vuelta crankset takes a 107mm bb but you could always contact Nashbar to be on the safe side.

xavier853
11-02-10, 05:49 PM
The longer the spindle the more space you have between frame and crank, for like a 3 ring crank for example. But you dont need that.


Also did BF change their board or something? It looks different from when I was browsing earlier. I know you guys must have noticed it because all of us just read BF and never ride!