Shutter Precision PD-8X 100 x 15 Thru Axle (Non-Boost) and 100 x 9 Quick Release / 6 Bolt / Disc / 32 Hole Dynamo Hub - Black8X Series dynamo hubs blend perfect integration for cutting edge tech. This hub is set for the classic fork standard width of 100mm with the included insert, can be used with a 15mm thru axle or with a 9mm quick release--so it will work with your classic MTB or disc touring bike! The meticulous design of the 8X Series can withstand the hefty pressures produced by disc brakes while preserving a simple, clean and pure appearance. High efficiency, lightweight dynamo hubs that are great for powering lights, chargers, and other electronics while riding. 8X-series hubs are 78% efficiency at 15 kph (9.3 mph). Compatible with standard dynamo system lights and convertors for USB powered devices.High quality sealed bearings and assembly processesOutput: 6V, 3W15mm Thru Axle and 6-Bolt Disc Brake32 Spoke HolesSpoke Interface: J-BendFlange Diameter, Right: 66Flange Diameter, Left: 66Weight: 470g without QR insert, 508g with QR insertBearing Type: Sealed CartridgeCenter to Flange, Right: 58Center to Flange, Left: 58O.L.D: 100mmColor: Black