SHIMANO 105 RS510 crankset 170 mm

This 2-piece crank uses an outboard, 24mm bottom bracket and features 2x11 speed 52-36, 50-34, and 46-36T compact chainrings. It uses a 4-arm construction and is compatible with modern disc brake road frames. Features: - Affordable and high-end style crankset - 4-arm crankset for 11-speed drive train - Compatible with frames of O.L.D. 135 mm and 410 mm chainstay length - New gear combination: 52-36T, 46-36T - Current gear combination: 50-34T Specifications: - Average weight: 908 (50-34T) - Rear speeds: 11 - 11 - Compatible chain: Linkglide - Chain line (mm): 43.5 - 43.5 - P.C.D. left / right (mm): 110 - P.C.D. (mm): 110 - 110 - Spider/gear arms: 4 - Chainring combination: 46-36T, 46-36T, 50-34T, 52-36T - Q-factor (mm): 150 - Crank arm length (mm) 165: Yes - Crank arm length (mm) 170: Yes - Crank arm length (mm) 172.5: Yes - Crank arm length (mm) 175: Yes - Optional chain guard Without chain/bash guard: Yes - Compatible bottom bracket type Outboard: Yes - Recommended bottom bracket Threaded (normal): BB-RS501, BB-RS501 - Recommended bottom bracket Press-Fit: BB-RS500-PB, BB-RS500-PB - Threaded bottom bracket shell width (mm) 68: Yes - Threaded bottom bracket shell width (mm) 70: Yes - Crank fixing screw included: Yes