High strength and durable construction - Hub housing made from AL6061 aluminium alloy - Shaft and freewheel made from AL7075-T6 aluminium alloy - Excellent corrosion resistance, offering strong, shockproof, robust, and durable performance Hubs and bearings for smooth operation - 32 holes, 6 pawls, 3 teeth - Front hub: 2 sealed bearings; Rear hub: 4 sealed bearings - Smooth and quiet rolling with low friction, high rigidity, and strong sealing - 144 clicks with crisp ratchet sound Boost thru-axle compatibility - Available in three configurations to fit a wide range of frames: - Front 15 x 100 mm, Rear 12 x 148 mm - Front 15 x 110 mm, Rear 12 x 142 mm - Front 15 x 110 mm, Rear 12 x 148 mm Freewheel compatibility and disc brake compatibility - HG/XD/MS freewheel bodies - HG: compatible with 8 to 11 speed cassettes - XD: compatible with 11 and 12 speed cassettes - MS: compatible with micro spline 12 speed cassettes - Suitable for mountain bikes with 6-hole disc brake systems Use scenarios - Upgrading a trail or enduro bike to a boost thru-axle hub for improved stiffness and braking reliability - Building or upgrading an 11-12 speed drivetrain using XD or MS cassettes on a 6-hole disc brake bike - Replacing a worn hub on a 32-hole, 6 pawl hub while maintaining strong sealing and smooth operation