Hey there, My left hand crank felt a bit wobbly today and when i had a look at it found it was just about to drop off. Hence needing a new crank, i have been looking at this one http://www.chainreactioncycles.com/Models.aspx?ModelID=7768 as i like having 48 teeth on the big ring plus it comes with a matching BB. Unfortunately i know nothing abuot bottom brackets sizes and was wondering if anyone knew if they are all standard? Would this crank fit a marin muirwood? Cheers all!