Bike Forums - BB Measurement question.

Bike Forums (https://www.bikeforums.net/forum.php)

- Singlespeed & Fixed Gear (https://www.bikeforums.net/singlespeed-fixed-gear/)

- - BB Measurement question. (https://www.bikeforums.net/singlespeed-fixed-gear/480451-bb-measurement-question.html)

Adam G.

10-25-08 08:06 PM

BB Measurement question.

What does the difference in bb mean in measurement such as a 103mm and a 107mm? I am thinking if you get 165 cranks you use the 103mm bb and if you use 170mm cranks use 107mm bb. Or does the bb measurement determine the chain line?

huerro

10-25-08 08:08 PM

Quote:

Originally Posted by Adam G. (Post 7733185)

What does the difference in bb mean in measurement such as a 103mm and a 107mm? I am thinking if you get 165 cranks you use the 103mm bb and if you use 170mm cranks use 107mm bb. Or does the bb measurement determine the chain line?

:thumb:

Adam G.

10-25-08 08:13 PM

Thank you sir!

z415	10-26-08 02:35 AM

That is the width of the bb spindle which helps you achieve chainline perfection.

All times are GMT -6. The time now is 03:10 PM.