Sturmey Archer A2D Internally Geared Hub - 2-Speed, 36H, 70mm Drum Brake, Silver

A2 Series internally geared hubs feature an automatic 2-speed shift system with a gear ratio of 137%.

• Aluminum hub shell
• 70mm Drum Brake

• Rear Axle: 13/32" Threaded x 116mm
• Cassette Body Type: 3 Prong Cog
• Drivetrain Speeds: 2
• Color: Silver
• Bearing Type: Loose Ball
• Spoke Interface: J-Bend
• Defined Color: Silver
• Hub Drilling: 36
• Hub/Brake Compatibility: Drum Brake