Kasai Field Serviceable Dynacoil Dynamo Hubs 328106

- Field serviceable version of the Kasai dynamo hub\n- Removable coil assembly with 36mm headset wrench\n- Impressive efficiency combined with excellent reliability, perfect for a demanding commuter or cycle tourist \n- 72% efficiency at 10 mph \n- 6-volt 3-watt output\n- Ideal wheel diameter: 26" wheels and larger\n- International Standard 6-bolt