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SKU: RRHB2510

Project 321 G3 6-Lock MicroSpline Rear Disc Hub - 12x148mm Boost, 32H, Black, Made in Canada, Magnetic Pawl Engagement, Anodized 7075 Aluminum Axle, Center Lock System, High-Performance Cycling, Durable & Lightweight Bike Hub

Regular price $440.00
$440.00 Sale price $440.00 Regular price
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Description
Specifications

Upgrade your mountain, gravel, or bikepacking setup with the Project 321 G3 6-Lock Disc Rear Hub - a precision-engineered component designed for demanding riders who value performance, durability, and versatility. Crafted from premium materials and featuring advanced engineering, this hub is optimized for high-speed stability and smooth engagement.

Materials & Construction

Built with anodized 7075 aluminum axles, the G3 6-Lock hub offers exceptional strength and corrosion resistance while keeping weight to a minimum. Its durable construction incorporates two double-row bearings at the highest stress points, ensuring reliable performance under rigorous riding conditions. The hub's black finish provides a sleek, tactical aesthetic that complements any bike frame.

Performance & Engineering

Experience near-instant engagement thanks to the innovative 1.25 /288-point engagement system. Eight 3-step pawls, phased in pairs on a 72-tooth drive ring, deliver a crisp, rock-solid feel with minimal play. The magnetic pawls increase pull strength as they engage, reducing drag during coasting and enhancing efficiency on every pedal stroke. The absence of springs and reduced moving parts mean less maintenance and increased durability.

Components & Technology

The G3 6-Lock utilizes a superior six-bolt design compatible with Center Lock rotors, providing flexibility for different braking setups. The 32-hole spoke pattern ensures a strong, balanced wheel build with consistent power transfer. The MicroSpline freehub body allows for seamless compatibility with Shimano's 12-speed drivetrain systems, offering fast, reliable gear shifts suitable for aggressive trail riding or endurance adventures.

Style & Use Case

Designed in Canada for serious cyclists, the black G3 6-Lock rear hub complements both modern and classic bike aesthetics. Its rugged yet lightweight profile makes it ideal for mountain biking, gravel riding, and bikepacking, where durability and responsiveness are paramount. Whether tackling technical ascents or high-speed descents, this hub delivers performance and style in one package.

Innovative & Differentiating Features

- Magnetic pawl engagement for instant feedback and reduced drag

- No-spring design minimizes moving parts for increased longevity

- Fine pitch preload adjustment for precise bearing tension

- Anodized 7075 aluminum axles for strength and corrosion resistance

- Compatibility with Center Lock braking systems and Shimano MicroSpline freehub

Enhance your bike's performance with the Project 321 G3 6-Lock Disc Rear Hub - engineered for riders who demand reliability, precision, and speed on every ride.

  • Precision-engineered for high-performance mountain biking and gravel riding, the Project 321 G3 6-Lock Disc Rear Hub features advanced MicroSpline compatibility for seamless 12-speed drivetrains.
  • Constructed from durable anodized 7075 aluminum with high-stress double-row bearings, this hub offers exceptional strength and reliability in demanding riding conditions.
  • Innovative engagement system with 1.25 /288 points of engagement via magnetically driven pawls provides instant, rock-solid power transfer and minimal coast drag, enhancing pedaling efficiency.
  • The versatile 6-Lock design allows for easy switch between Center Lock and Six-Bolt rotors, offering compatibility with a wide range of brake calipers and setups for personalized control.
  • Designed and manufactured in Canada, this lightweight, low-maintenance hub ensures precision performance with fine preload adjustment, making it a top choice for serious cyclists seeking durability and smoothness.
Number of Holes32
Front or Rear?Rear (Micro Spline)
ColorBlack
Model NameG3
Rear Axle Spacing12x148
SpokeJ-Bend
Brake Type6-Bolt
Weight-
Shipping
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We pride ourselves on our ability to ship and deliver your gear with excessive speed! We ship from 22 locations throughout the United States and most orders will arrive in 3 days or less with Free Shipping on orders over $75!

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365 Cycles puts the customer above everything. Our number one goal is your satisfaction. When you press the shift lever you want the gears to shift, and when you buy bicycle parts, you want the bicycle parts to arrive on time in new condition. With over 60,000 products and 22 warehouse locations throughout the country, we have the parts you need and they are coming in hot!

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Our team is waiting to help you 7 days a week and they are more qualified to help than I am but if you ever feel like you're not getting the service you need I’m personally asking you to email me at ben@365cycles.com with "CUSTOMER LOYALTY" in the title and I will personally handle your order.

Over the years we have served millions of satisfied customers and continue to serve many of them today. With your feedback, we are confident we can take this lifelong journey together and build a friendship that goes beyond parts and accessories.

“If you want to go fast, go alone, if you want to go far, go together.” -Someone Smart

Ben Berman Founder & CEO of 365 Cycles


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