The Hope Pro 4 Rear Hub is the next generation of Hope hubs. Featuring sealed stainless steel cartridge bearings, these hubs are machined from forged T6 aluminium billet. Hope Pro 4 Rear Hub Features 4 Pawl Ratchet with 44 tooth 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 a frame with a Boost 148x12 rear end Available in 28, 32 and 36 hole drillings Weight: 311g for 36 hole version with a Shimano 11spd alloy freehub body. Hub flanges move outboard 3mm compared to standard Pro 4 rear hub to increase complete wheel stiffness *Note: 148mm hub uses a different wider hub shell and axle compared to standard 135mm Pro 4 rear hub