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Technical Documents
Specifications
Model Number SG-8C31
Series NEXUS
Speeds 8.0
Silent Clutch yes
Gear Change Support yes
Shifting Power Modulator yes
Driving Efficiency Standard
Shifting Lever SB/SL/ST-8S20 (SL-S500)
Coaster Brake yes
Roller Brake Compatible -
Dust Cap for V-Brake -
Disc Brake Rotor Mount -
Hub Shell Material aluminum
Hub Shell Finish painted
Gear Ratio Total Difference 3.07
Gear Ratio 1 0.527
Gear Ratio 2 0.644
Gear Ratio 3 0.748
Gear Ratio 4 0.851
Gear Ratio 5 1.0
Gear Ratio 6 1.223
Gear Ratio 7 1.419
Gear Ratio 8 1.615
Gear Ratio 9
Gear Ratio 10
Gear Ratio 11
Axle Length 132mm
Over Locknut 184mm
Spoke Holes 36H
Spoke Size #13, #14
Sprocket Options 16, 18, 19, 20, 21, 22, 23
Chain Line 42.85mm
Cassette Joint CJ-8S20, CJ-8S40
Average Weight 2040g
Flange Distance (mm)
Spoke Hole PCD (mm)
Flange Diameter (mm)
Flange Width (mm)
Sprocket Thickness (mm)
Chain Size
Shimano Recommended Chain
Dishing Distance (mm)
Shifting Switch
Motor Unit
Note