XTR(RD-M9000) series rear mechs

If you have G-Spec DH

Heat from dishwashers can distort bottles causing them to leak

you can upgrade to this kit

Fortus 30: 27

Hope Pro 4 Rear 6 Bolt Disc Hub - 12x150mm - 32 Hole - XD Driver - Purple Virtual Parent XTR(RD-M9000) series rear mechsThe 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