Hope Pro 4 Front 6 Bolt Disc Hub - 15x110mm Boost - 28 Hole - Black algolia-ignore The Prime 9 range of

The Prime 9 range of components from Box has made many people rethink what a 9-speed drivetrain is capable of

Enduro and Gravity flat pedal riders

great for summer

They feature bead bite technology which increases tyre retention

Cons: A little bulky

Hope Pro 4 Front 6 Bolt Disc Hub - 15x110mm Boost - 28 Hole - Black algolia-ignore The Prime 9 range ofThe Pro 4 is an incredibly versatile and easily serviceable hub that builds upon Hope's reputation for bulletproof quality and attention to detail. The hubs are machined from a single billet of 2014 T6 aluminium and run on stainless steel sealed cartridge bearings for smooth running and outstanding reliability. Specs: 15mm axle. Sealed stainless steel cartridge bearings. Hub shell machined from forged aluminium billet. Standard 6 bolt disc fitting.