Shimano SLX FC-M7100-1 12-Speed Single Crank w/o Chainring

Shimano SLX FC-M7100-1 12-Speed Single Crank w/o Chainring Specifications Model No. FC-M7100-1 Series SLX M7100 Series Color Series color Average weight 646g (34T) / 631g (32T) / 634g (30T) Chainring combination 30T / 32T / 34T Compatible bottom bracket type Outboard Yes Crank fixing screw included Yes Crank arm length (mm) 165 Yes Crank arm length (mm) 170 Yes Crank arm length (mm) 175 Yes Spider/Gear arms 4 HOLLOWTECH II Yes Optional chain guard Without chain/bash guard Yes Recommended bottom bracket Press-fit BB-MT800-PA Recommended bottom bracket Threaded (normal) BB-MT800 Threaded bottom bracket shell width (mm) 68 Yes Threaded bottom bracket shell width (mm) 73 Yes Q-factor (mm) 172 Chain line (mm) 52 Compatible chain HG 12-speed P.C.D. (mm) Direct Rear speeds 12 O.L.D._QR / Nut (mm) 135 / 141 O.L.D. Thru (mm) 142 / 148