ZZYZX Downhill Front Wheel MTB Hub - 36H - 20mm Thru Axle - 6 Bolt Disc - BlackZZYZX Downhill Front Wheel MTB Hub 36H 20mm Thru Axle 6 Bolt Disc Black This ZZYZX 20mm Axle Front Hub sits at the pinnacle of performance. With its strong design and quality sealed bearings this hub is an exceptional value disc brake compatible front hub for 20mm forks and gravity riding. Additionally, the high strength aluminium axle offer great strength and durability. Supplied with 2 bolts it will fit forks with 20mm axle such as the Rock Shox