Hope PRO 4 Rear 32H 157mm SUPER - 12mm Sram XD Freehub Blue Same durability as our standard Pro 4 rear hub designed to suit 157mm SuperBoost spacing Same durability as our standard Pro 4 rear hub designed to suit Super Boost 157mm frames. The Pro 4 Super Boost rear hub has a wider flange spacing compared to a 148mm Boost hub and a decreased percentage dish for more even spoke tension. 4 Pawl Ratchet with 44 points of engagement (8.2 deg) Sealed Stainless Steel cartridge bearings Machined from forged 2014 T6 aluminium billet Standard 6 bolt disc fitting Larger spoke flange to enable stiffer wheel builds Unsurpassed reliability Designed specifically to suit 157mm frames Available in 32 drilling Weight 322g with 32 hole drilling & Shimano 11spd freehub body.