I am switching from a shimano 105 crankset on my felt AR5 to sram red crankset. I know I need a BB30 threaded bottom bracket to convert. Anyone have recommendations on what to by that the most economical?
Get a thread together bottom bracket for a BB30 shell. Something like this should work:
Or if you already have thread together cups, you could just get the appropriate bearings for the SRAM crank – those should be 2437 for the drive side:
And 22x37x8 for the non-drive side:
If I’m not mistaken, you should be able to just knock the old bearings out of the cups and press those in – I’d check with Wheels MFG or someone like that to be 100% sure though.