Thorn Cycles Forum

Technical => Transmission => Topic started by: vik on September 16, 2008, 03:13:00 AM

Title: BB spindle length?
Post by: vik on September 16, 2008, 03:13:00 AM

I'll be receiving a Thorn Sterling shortly and plan on using a square taper Shimano BB and a Deore triple MTB crank with only a single 38T chainring mounted in the "big ring" outboard position.  Would anyone know what spindle length of BB I need to get a straight chain line with the Rohloff hub?

thanks!.... ;D

Title: Re: BB spindle length?
Post by: ians on September 16, 2008, 12:33:24 PM

ooh ooh I know this one.  It's 118mm (by 68).  You need the extra length because of the chainstay width.

Enjoy the Sterling - mine is nearly completed.

ians

Title: Re: BB spindle length?
Post by: vik on September 16, 2008, 04:36:27 PM

Quote from: ians on September 16, 2008, 12:33:24 PM

ooh ooh I know this one.  It's 118mm (by 68).  You need the extra length because of the chainstay width.

Enjoy the Sterling - mine is nearly completed.

ians

Thanks Ian.  Now I can go buy my drivetrain bits.... :D

If you have pic of your Sterling I'd love to see how it turned out.  I'm going to use a fork off my old MTB for the winter and want to get something new and squishy for  the spring 2009 season.  I don't love Rockshox so I'm thinking a Fox Talas 140 RLC - which can be run in 100m travel mode.

Title: Re: BB spindle length?
Post by: vik on September 19, 2008, 06:10:18 AM

Quote from: ians on September 16, 2008, 12:33:24 PM

ooh ooh I know this one.  It's 118mm (by 68).  You need the extra length because of the chainstay width.

Enjoy the Sterling - mine is nearly completed.

ians

Ian I just got my Sterling the BB is 73mm wide not 68mm.