BBS4116: 16 notch BB socket for 41mm diameter notch pattern

Crankset Compatibility: Fits Specialized S-works and Lightning cranksets

usable on-trail control—optimal power and modulation mean speed can be controlled in all terrain and in all situations

Note that this will not expand your derailleurs capacity

Giro Chronicle MIPS Helmet - S - Matte Black - Gloss Black - AS-NZS 2063-2008 Standard Exclusive BBS4116: 16 notch BB socketThe Giro Chronicle MIPS represents fantastic protection at an excellent price point. The Chronicle isn't short on features either. This is no surprise considering it's drawing on the technology of the top level Giro Montaro. The Chronicle is rocking: Deep Fit for maximum coverage and confidence to send it! Protection The MIPS sytem is an insert below the EPS liner that allows the head to rotate slightly within the shell of the helmet in the event of a