These are 36-hole flip/flop,sealed cartridge bearingaluminum hubs that have a high flange with a cutout design.The hubs have an aluminum shell.These willworkwith singlespeed thread-on freewheels that are 13t and larger. One side is threaded for1.37x24t thread freewheels (16t and larger), and the other side is threaded 30mmx1 (13t-15t).

Drilling: 36H
Axles: 3/8″
Front OLD: 100mm
Rear OLD: 110mm
Color: Gold Anodized