Description
Upgrade your bike’s performance with the Project 321 G3 6-Lock Disc Rear Hub – the perfect choice for serious cycling enthusiasts and endurance riders. Designed for versatility, durability, and smooth engagement, this high-end hub features advanced engineering and premium materials to elevate your riding experience.
Materials & Construction:
Crafted from durable anodized 7075 aluminum, the G3 6-Lock rear hub offers exceptional strength-to-weight ratio and corrosion resistance. The hub incorporates high-quality double-row bearings at critical stress points, ensuring longevity and consistent performance in demanding conditions.
Performance & Engineering:
Experience lightning-fast 1.25 engagement with 288 points of contact. The hub’s innovative 8-pawl, 3-step engagement system on a 72-tooth drive ring delivers an instant, rock-solid connection when you start pedaling. Pawls are magnetically driven, pulling harder as engagement nears, which reduces drag during coasting and eliminates traditional springs, resulting in a quieter, more reliable system with fewer moving parts.
Components & Technology:
The G3 6-Lock features an improved six-bolt system, offering seamless compatibility with Center Lock disc rotors for versatile braking options. The 28-hole J-bend spoke configuration ensures robust wheel building and reliable long-term performance. Additionally, the hub’s fine pitch preload adjustment allows precise tension for optimal wheel tension and durability.
Style & Use Case:
Built for mountain biking, trail riding, and gravel adventures, the silver finish gives your bike a sleek, professional look. Compatible with 12x148mm thru-axles and designed for rear wheel setups, this hub is ideal for riders who demand smooth engagement, durability, and ease of maintenance in rugged terrains or high-intensity rides.
Innovative Features & Differentiators:
Instant 1.25 engagement via magnetically driven pawls for responsive power transfer
Fewer moving parts-no springs, minimal wear, and reduced maintenance
Anodized 7075 aluminum axle with preload adjustment for a customizable fit
Compatible with Center Lock rotors, enhancing braking flexibility
Made in Canada, ensuring top-tier craftsmanship and quality standards
Elevate your bike’s rear wheel setup with the Project 321 G3 6-Lock Disc Rear Hub – engineered for precision, durability, and high-performance riding. Optimize your drivetrain with this premium, innovative hub designed to deliver instantaneous engagement and reliable service on every ride.
- High-precision 1.25 engagement with 288 points from eight 3-step pawls phased for instant, rock-solid responsiveness, enhancing power transfer and ride feel.
- Constructed from durable anodized 7075 aluminum, the G3 6-Lock Disc Rear Hub offers excellent strength-to-weight ratio and corrosion resistance for long-lasting performance in demanding riding conditions.
- Features innovative magnetic pawls that minimize drag during coasting, eliminate springs, and provide a smooth, maintenance-friendly operation with fewer moving parts for increased reliability and easier service.
- Versatile 6-Lock six-bolt design allows seamless compatibility with Center Lock rotors, offering flexible brake setup options to suit various riding styles and wheel configurations.
- Engineered with double row bearings at high-stress points and fine pitch preload adjustment, this rear hub ensures maximum stability, smooth rotation, and precise wheel tuning for competitive and recreational cycling alike.
| Number of Holes | 28 |
| Front or Rear? | Rear (XDR) |
| Color | Silver |
| Model Name | G3 |
| Rear Axle Spacing | 12×148 |
| Spoke | J-Bend |
| Brake Type | Center Lock |
| Weight | – |






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