BB30A 73mm shell + Stages spindle A compatibility

Discuss light weight issues concerning road bikes & parts.
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Posts: 3181
Joined: Mon Aug 29, 2016 11:19 am

by alcatraz

Hi wws

I'm thinking of getting a supersix with bb30a bb.

I have a sram red stages with a 100.75mm long stages spindle A.

It's commonly used for bb30-68mm but I'd like to know if it would work on 73mm bb30a.

Does anyone know?


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Dan Gerous
Posts: 1651
Joined: Sun Aug 12, 2007 6:28 pm

by Dan Gerous

Is it currently installed on a 68mm frame? Normally it's pretty simple, the additional 5mm of BB30a vs BB30 is all on the non-driveside so if you have 5mm worth of spacers and/or preload adjusting collar on that side, it should fit.

There is always the issue if chainstay clearance with the Stages device stuck inside the arm but it should be okay unless the arm is very thick/bulky.

by Weenie

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