Pro 4 Boost - MTB Hub - Rear - MicroSpline Specials Crank Set Specifically designed for 148 x

Specifically designed for 148 x 12mm frames with hub flanges move outboard 3mm compared to standard Pro 4 rear hub increasing complete wheel stiffness

RX4-SH Caliper - Designed to work with Shimano and Campagnolo dropbar brake systems

Spiderless Retainer chainrings 26T to 36T Standard and Boost options

replaceable stainless steel bearings to resist corrosion

Available with Black

Pro 4 Boost - MTB Hub - Rear - MicroSpline Specials Crank Set Specifically designed for 148 xSame durability as our standard Pro 4 rear hub designed to suit Boost 148mm KEY FEATURES 12 speed compatible Sealed Stainless Steel cartridge bearings Hub shell machined from a single forged aluminium billet Standard 6 bolt disc fitting Larger spoke flange to enable stiffer wheel builds Unsurpassed reliability Available in 148 x 12mm thru axle Specifically designed for 148 x 12mm frames with hub flanges move outboard 3mm compared to standard Pro 4