91 GT Zaskar

MCA4President · Feb 5, 2023

Bit of an update, now have some xc pro pedals. Question is does anyone know what spindle length BB I need to fit an xc pro chainset? The inner ring is catching on the frame as the race face cranks before had a wildly different offset.

Once A Hero · Feb 5, 2023

In the process of doing an XC pro Zaskar myself (much further to go than you have!), but I believe the spindle length should be 125.5mm or thereabouts for XC pro.
73mm BB shell though, so that may mean it needs to be 130mm? not sure if that’s how it works!

kingoffootball · Feb 5, 2023

Once A Hero said:
In the process of doing an XC pro Zaskar myself (much further to go than you have!), but I believe the spindle length should be 125.5mm or thereabouts for XC pro.
73mm BB shell though, so that may mean it needs to be 130mm? not sure if that’s how it works!

My '91 Zakar had a 68mm BB shell.

legrandefromage · Feb 5, 2023

my 73mm shell runs a wide 127mm for the XT and Topline (long time snapped!) cranks to clear the stays

Once A Hero · Feb 5, 2023

kingoffootball said:
My '91 Zakar had a 68mm BB shell.

Ah ok, was thinking they’d all be the same - mine’s a ‘92.

MCA4President · Feb 6, 2023

legrandefromage said:
my 73mm shell runs a wide 127mm for the XT and Topline (long time snapped!) cranks to clear the stays

I can only see 73mm bb's available with a length up to 122.5mm. Are my interwebbing skills letting me down again? (Edit: Halfords do a 73x127!)

d8mok · Feb 6, 2023

My 92 was a 68mm shell.

MCA4President · Feb 6, 2023

d8mok said:
My 92 was a 68mm shell.

Yeah I'm an idiot. Just rechecked and it's 68mm

MCA4President · Feb 23, 2023

New bottom bracket finally arrived so I've been able to fit the Suntour XC Pro chainset and pedals. It's now complete (in my eyes) with full XC Pro except for the hubs and cassette.