SR SunTour crank BB spindle length?

[keny]

I have a SR SunTour mtb 5 bolt compact crank from 1998. Just a question, what BB spindle length does it need?
Its for normal square, Outer chainring says Powerflo front XR40, inside of arm says 457 and 3 like in pic below. Other side production stamped 1998. Google was not to much help...


Grateful for help.

 

[xerxes]

Re:

Sheldon has lots of info, but sadly little on Suntour: http://sheldonbrown.com/bbsize.html

Do you have an existing spare bottom bracket? If so, fit that and measure the chainline, you should then be able to calculate how much longer or shorter spindle you need to get the correct chainline.

 

[keny]

Turn out a 110mm BB give qa chainline of ~50mm