Project 321 RG3 Rear Hub - 6-Lock, 28 Hole, 12x142mm

The Project 321 RG3 Rear Hub brings together fast engagement, smooth rolling efficiency, and excellent durability for road and gravel riders alike. Built around the M-Pulse magnetic pawl system, the RG3 offers 144 points of engagement (2.5°) with the option to upgrade to 288 POE (1.25°) for riders who want snappier response on steep or technical terrain.

The 6-Lock rotor system supports both Centerlock and 6-Bolt rotors, making it easy to build the exact wheel system you prefer. Available with HG-Road, XDR, or MicroSpline drivers and finished in multiple anodized colours, the RG3 rear hub is a premium choice for modern gravel, all-road, and endurance setups.

Key Features

• M-Pulse magnetic pawl system

• 144 POE (upgradeable to 288 POE)

• 6-Lock rotor interface (CL + 6-Bolt)

• 7075-T6 CNC-machined shell

• 12x142 mm axle

• Driver options: HG-Road, XDR, MicroSpline

• Available in 24h or 28h

• Wide range of anodized colours

Perfect For: Gravel adventures, long-distance road rides, mixed-surface racing, and fast, efficient wheel builds.