Sturmey Archer RX-RK5 is a 5-speed internally geared disc brake rear hub with a gear ratio of 243%. Gear steps of 25%,25%,25% and 25% with rotary gear selector without protrusions outside the frame.Features:Designed for heavy duty use Compatible with 16 to 22 tooth sprocket 6061 Aluminium hub shellSpecifications:Defined Color: Silver Color: Silver Weight: 2000 Hub Drilling: 32Spoke Interface: J-Bend Hub/Brake Compatibility: 6-Bolt Disc Drivetrain Speeds: 5
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