Products

ALFINE 8-Speed Internal Hub

Technical Documents
Features
  • 8-speed Internal Hub Gear for Disc Brake Use
  • Highest Shimano internal hub efficiency
  • Double roller clutch engagement for smoother, quieter shifting
  • V-Brake & DIsc Brake compatible
  • Center Lock disc brake rotor mount
  • Close Ratio Wide-Range gearing
  • Improved Sealing
  • Robust Construction
  • With 20T rear cog - gearing equivalent to 12-38T cassette
Specifications
Model NumberSG-S500
SeriesALFINE
Speeds8.0
Silent Clutchyes
Gear Change Supportyes
Shifting Power Modulatoryes
Driving EfficiencyHigh
Shifting LeverSL-S500 (SB/SL/ST-8S20)
Coaster Brake-
Roller Brake Compatible-
Dust Cap for V-Brake-
Disc Brake Rotor MountCenter Lock
Hub Shell Materialaluminum
Hub Shell Finishanodized
Gear Ratio Total Difference3.07
Gear Ratio 10.527
Gear Ratio 20.644
Gear Ratio 30.748
Gear Ratio 40.851
Gear Ratio 51.0
Gear Ratio 61.223
Gear Ratio 71.419
Gear Ratio 81.615
Axle Length135mm
Over Locknut185mm
Spoke Holes32H/36H
Spoke Size#13, #14
Sprocket Options18T, 20T (CS-S500)
Chain Line42mm
Cassette JointCJ-8S20, CJ-8S40
Average Weight