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Designed for speed, built for reliability.
RG3 hubs are engineered to inspire confidence on any road.
Unit price per
The Project321 G3 Center Lock 100x12 Front Hub
The G3 front hub is equally comfortable on road, gravel, and trail. Designed with slightly larger bearings and a taller spoke flange (compared to RG3 front hubs), the G3 front hub it is the choice for riders looking for the most direct and responsive wheel.
Our approach with G3 was to build a hub that strikes the ideal balance between strength, weight, reliability, and efficiency. The result of this design philosophy is a robust and efficient hub set with instant, rock-solid engagement.
Specifications:
- Axle Compatibility: 12x100, convertible to 15x100. Thru axle only.
- Center Lock brake mount. A 6-Lock version can be found here: G3 6-Lock Front Hub 100x12
Description
The Project321 G3 Center Lock 100x12 Front Hub
The G3 front hub is equally comfortable on road, gravel, and trail. Designed with slightly larger bearings and a taller spoke flange (compared to RG3 front hubs), the G3 front hub it is the choice for riders looking for the most direct and responsive wheel.
Our approach with G3 was to build a hub that strikes the ideal balance between strength, weight, reliability, and efficiency. The result of this design philosophy is a robust and efficient hub set with instant, rock-solid engagement.
Specifications:
- Axle Compatibility: 12x100, convertible to 15x100. Thru axle only.
- Center Lock brake mount. A 6-Lock version can be found here: G3 6-Lock Front Hub 100x12
Hub Dimension Chart

Hub Comparison Chart

P321 Warranty
If you are experiencing issues with your Project 321 hubs and you feel you require warranty help, please use the link below to learn more.