Key Features

• 10, 11 and 12 speed compatible
• Sealed Stainless Steel cartridge bearings
• Hub shell machined from a single forged aluminium billet
• Standard 6 bolt disc fitting
• 4 Pawl ratchet system with 44 tooth engagement (8.2 deg)
• Larger spoke flange to enable stiffer wheel builds
• Unsurpassed reliability
• Available in 148 x 12mm thru axle

Pro 4 Boost 148mm rear hub Tech Specs:

• Now available with Shimano MicroSpline freehub body
• Specifically designed for 148 x 12mm frames with hub flanges move outboard 3mm compared to standard Pro 4 rear hub increasing complete wheel stiffness
• Available in 28, 32 and 36 hole drillings
• Machined from forged 2014 T6 Aluminium billet
• Conversions available for 141 x QR and 148 x 12mm
• Supplied with freehubs to suit 10/11spd Shimano, 12 Speed MicroSpline, Sram XD or Hope cassette
• Aluminium or steel Shimano freehub body options
• Weight: 311g (36 hole, Shimano)