The model you need depends on what size post mounts your fork/frame has

The Lazer Autofit Retention System automatically adjusts to the riders’ head making the helmet quick and easy to fit

Furthermore the adjustability in horizontal direction offers an optimised individual setup

dependable butt-cushioning goodness

Hope Pro 4 Rear 6 Bolt Disc Hub - 12x148mm Boost - 28 Hole - Shimano Microspline - Black PLP|EMTB Optimised The model you need dependsThe 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. The 4 pawl ratchet system has 44 teeth with solid and reliable 8. 2 deg engagement with that unmistakable Hope sound. The Pro 4 spoke flange