SHIMANO A070 crankset

Shimano tourney a070- road crankset 2x8/7-speed. The shimano tourney a070 crankset is compatible with 2x7 and 2x8 drivetrains and provides compact 50-34t gearing. It uses a square taper bottom bracket interface. Specifications: - Rear speeds: 8/7 - Compatible chain: HG 8/7/6-speed - Chain line (mm): 43.5 - P.C.D. left / right (mm): Riveted - O.L.D. Thru (mm): 142 - O.L.D. QR/Nut (mm): 135 - P.C.D. (mm): Riveted - Spider/gear arms: 5 - Chainring combination: 50-34T - Q-factor (mm): 169 - Crank arm length (mm) 165: Yes - Crank arm length (mm) 170: Yes - Optional chain guard With bash guard: Yes - Optional chain guard With chain guard: Yes - Optional chain guard Without chain/bash guard: Yes - Compatible bottom bracket type Square: Yes - Recommended bottom bracket Threaded (normal): BB-UN300 - Axle length of BB-UN/ES (mm) Threaded (normal): MM110 - Threaded bottom bracket shell width (mm) 68: Yes - Threaded bottom bracket shell width (mm) 70: Yes