MaraudingWalrus
07-05-2015, 03:35 PM
Hi all,
I've a set of Cannondale Hollowgram SI cranks (from a 2014 SupersixEVO) sitting around not doing me any good on the shelf. I also have a 2014 Raleigh Rush Hour, that's begging for some upgrades.
The Rush Hour is a bsa threaded bottom bracket, 68mm shell width. The spindle on the hollowgrams is, according to C-dale, 109mm wide (I measured to 109.03, so we'll assume they're correct).
Rotor has their BSA30 bottom bracket, which is designed to make their 3d+ cranks work on a BSA frame.
Simply using the Cdale crank and the RotorBSA30 wouldn't work, as the width of the now outboard bearings would be too wide for the cranks to attach.
It looks like this should be something that should be possible, either through obtaining a longer spindle, or deleting of some of the spacers normally used.
I've found a few threads (http://forums.mtbr.com/drivetrain-shifters-derailleurs-cranks/bb30-crank-non-bb30-bike-594100.html) of people wanting to do similar things, but they either went nowhere, or I'm too dumb to understand what they did (absolutely a possibility).
There seems to be a kit (http://www.cannondale-parts.de/epages/61764971.sf/en_US/?ObjectPath=/Shops/61764971/Products/%22KP094/%22) out there somewhere. Anyone
Has anyone here done something similar? If so, what were the results.
Or am I totally crazy and this is absolutely impossible?
I've a set of Cannondale Hollowgram SI cranks (from a 2014 SupersixEVO) sitting around not doing me any good on the shelf. I also have a 2014 Raleigh Rush Hour, that's begging for some upgrades.
The Rush Hour is a bsa threaded bottom bracket, 68mm shell width. The spindle on the hollowgrams is, according to C-dale, 109mm wide (I measured to 109.03, so we'll assume they're correct).
Rotor has their BSA30 bottom bracket, which is designed to make their 3d+ cranks work on a BSA frame.
Simply using the Cdale crank and the RotorBSA30 wouldn't work, as the width of the now outboard bearings would be too wide for the cranks to attach.
It looks like this should be something that should be possible, either through obtaining a longer spindle, or deleting of some of the spacers normally used.
I've found a few threads (http://forums.mtbr.com/drivetrain-shifters-derailleurs-cranks/bb30-crank-non-bb30-bike-594100.html) of people wanting to do similar things, but they either went nowhere, or I'm too dumb to understand what they did (absolutely a possibility).
There seems to be a kit (http://www.cannondale-parts.de/epages/61764971.sf/en_US/?ObjectPath=/Shops/61764971/Products/%22KP094/%22) out there somewhere. Anyone
Has anyone here done something similar? If so, what were the results.
Or am I totally crazy and this is absolutely impossible?