Shimano Spares SG 3R40 driver unit

Shimano Sg-3r40 Internal Assembly Black . SHIMANO NEXUS - Internal Geared Rear Hub - Roller Brake - O.L.D 120.4/126.8 mm - 3-speed- The SHIMANO NEXUS SG-3R40 hub offers a reliable 3-speed mechanism, a SILENT CLUTCH, and roller brake.Features:- Internal Gear Shifting: 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: 885gSpecifications:- Average weight: 885- Bike Type_Mount Type: INTER-M- Bike Type_Recommnended Model: BR-C3010, BR-C3000- Speeds: 3- Gear ratio_Total: 186%- Gear ratio_1: 0.733- Gear ratio_2: 1- Gear ratio_3: 1.364- Shifting power modulator: Yes- Spoke hole_28H: Yes- Spoke hole_32H: Yes- Spoke hole_36H: Yes- Axle length (mm)_182: Yes- Axle length (mm)_184: Yes- Axle length (mm)_Others: 170/177/189/192- Shifting Structure: Low Normal- Driving efficiency: Standard- Flange diameter (mm): 84- Flange width (mm)_Left: 2.3- Flange width (mm)_Right: 2.3- Gear change support mechanism: Yes- O.L.D. (mm): 120/127/130- Offset (mm): 0.8(120mm Axle) / 2.5- P.C.D. (mm): 74- Spoke size: #13/#14- Flange distance (mm): 53.5. tradeinn Bikeinn