BB Swapping
08-19-10 | 02:51 PM
#1
Thread Starter
It's true, man.
Joined: Aug 2005
Posts: 2,726
Likes: 0
From: North Texas
Bikes: Cannondale T1000, Inbred SS 29er, Supercaliber 29er, Crescent Mark XX, Burley Rumba Tandem
BB Swapping
I have a Salsa Vaya tourer with an XT external bearing BB and 9 speed XT crankset installed. All of the shims that came with the BB are in use.
I want to swap the BB/Crankset for an Ultegra BB and 9 speed Ultegra triple crankset.
Will the Ultegra setup use the same shims for the BB as the XT, or will I need fewer shims (or none)?
I want to swap the BB/Crankset for an Ultegra BB and 9 speed Ultegra triple crankset.
Will the Ultegra setup use the same shims for the BB as the XT, or will I need fewer shims (or none)?
08-19-10 | 03:51 PM
#2
17yrold in 64yrold body
Joined: May 2010
Posts: 922
Likes: 1
From: Northern CA
IF the XT is set up for 73mm BB shell, and IF the Ultegra is set up for 68mm shell, you will need 5mm less shims. 73mm is what a lot of MTB's are set up with, and 68mm is what most Road English BB's are set up for.
08-20-10 | 01:33 PM
#4
Thread Starter
It's true, man.
Joined: Aug 2005
Posts: 2,726
Likes: 0
From: North Texas
Bikes: Cannondale T1000, Inbred SS 29er, Supercaliber 29er, Crescent Mark XX, Burley Rumba Tandem
The Vaya has a 68mm shell. The shims are on with the XT BB to fill out a road-width shell to MTB proportions.
No shims is what I was hoping to hear. Thanks, y'all.
No shims is what I was hoping to hear. Thanks, y'all.
