Internal Geared Rear Hub with Roller Brake. O.L.D 126.8 mm. Spoke holes: 36. 3-speed. The SHIMANO NEXUS SG-3R40 hub offers a reliable 3-speed mechanism, a SILENT CLUTCH, and roller brake.
- Gear shifting action is independent of pedaling. You can shift gears anytime, while standing still, pedaling or coasting
- Shift Modulator Mechanism
- Smoothes out the shifting action while pedaling
- Gear Change Support Mechanism
- Weight: 885g
- Brake type_Recommended Model: BR-C3010 BR-C3000
- Gear ratio_Total: 186%
- Gear ratio_1: 0.733
- Gear ratio_2: 1
- Gear ratio_3: 1.364
- Flange distance: 53.5 mm
- P.C.D. left / right: 74 mm
- Flange diameter: 84 mm
- Flange width: 2.3 mm
