2018 Breezer Radar Expert 2×9 with over 9k miles as a commuter bike. I just replaced the cassette and chain (3rd and 6th replacement respectively). I now have driveline vibration which I suspect is from the worn chainring. Current crank is SRAM via centro with a 48t-32t 10s chainring (from factory).
I am having issues finding a similar geared crankset for a square taper BB. Closest 46t-30t will require me replacing the BB from a 113mm spindle to 123mm spindle.
If I’m doing this much work, should I just go ahead and switch to Hollowtech BB with a GRX600 crankset? I’m specifically looking at the Shimano BB-MT801 with the GRX FC-600 10s crankset. Will there be any issue with using the same Alivio FD with Sora levers? Any advice is appreciated!
by Creepy_Squash
4 Comments
You’ll need to measure the BB shell width (the frame where the BB screws in). If it’s 68mm, it’ll work with GRX. If it’s 73mm, you’ll need to use something else.
Yes, but need a hollow tech style BB
You can just replace the chainrings, rather than the whole crank. Per SRAM’s website it takes 104/64 bcd rings
You could probably just swap chainrings. That said, shimano mid tier and up cranks have the best shifting chainrings of anything I’ve dealt with.