Halo

CrMo Micro-Spline Driver Body GXC/RD2 Hubs

The Halo CrMo Micro-Spline Driver Body keeps your GXC or RD2 hub running smooth and ready for modern drivetrains. Built for durability and precision engagement, this driver body is designed to handle the torque demands of today’s 12-speed Micro-Spline systems, giving riders the performance and reliability they expect from Halo’s proven hub platforms.

Crafted from strong CrMo steel, it’s a perfect choice for riders who prioritize long-term durability and consistent performance on everything from gravel adventures to daily commutes. Whether upgrading or replacing, this driver body brings back that crisp, positive engagement every rider loves.

Key Features:

• Compatible with Halo GXC and RD2 hubs
• Designed for Micro-Spline 12-speed drivetrains
• Durable CrMo construction for strength and longevity
• Available for 15mm end caps with either 19mm or 21mm outer diameter
• 21mm suits mountain forks; 19mm fits road forks or mixed setups

When it’s time to refresh your hub or adapt to a new drivetrain, the Halo CrMo Micro-Spline Driver Body makes the swap seamless—so you can get back to riding with confidence.