Shimano Sora FC-R3000 Crankset 2x9 Speed 170mm 175mm 50-34T With BB-RS501 Road Crank For Road Bike Bicycle BB-RS501 bsa is update from RS500 BSA Model: Shimano Sora FC-R3000 Crankset 170mm 50/34T or 175mm 50-34T Series: SORA R3000 series Color: series color Thread bottom bracket width (mm)_70: ✔ 2-PIECE CRANKSET: ✔ Chain center line (mm): 43.5 Sprocket combination: 50-34T Compatible bottom bracket type_outside: ✔ Compatible chain: HG 9 speed Including crank fixing screw ✔ Crank arm length (mm)_170: ✔ Gear fixed arm/crank claw: 4 Optional chain guard_without chain / anti-shock chain guard: ✔ P.C.D. (mm): 110 Rear gear: 9 Recommended bottom bracket _ press-in type: BB-RS500-PB Recommended bottom bracket_thread (normal): BB-RS500 Thread bottom bracket width (mm)_68: ✔ Q factor (mm): 150 Chain center line (mm): 43.5 Compatible chain: HG 9 speed P.C.D. Left/Right (mm): 110 Rear gear: 9

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