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RFX Pro Series Rear Axle Blocks are designed to make rear wheel changes faster, easier, and more precise on compatible KTM, Husqvarna, and GasGas motorcycles. Manufactured by RFX and identified by part number FXAB 50600 99OR, these orange axle blocks provide a secure axle-holding solution while supporting accurate rear-wheel alignment.
The integrated axle holder secures one side of the axle, allowing the axle nut to be tightened with a single wrench. This practical design can simplify routine maintenance and reduce the time required for wheel removal and installation. Tighter manufacturing tolerances help improve fit, while the CAD-designed profile balances strength and reduced weight for performance-focused applications.
Constructed from CNC-machined 7075 aerospace-grade aluminum, the RFX Pro Series axle blocks are built for durability and dependable use. The color-anodized orange finish adds a factory-inspired appearance, and the laser-etched RFX logo provides a clean, finished look. Verify motorcycle compatibility before installation to ensure the correct fit for your application.
Features:
- Axle holder secures one side of the axle so the axle nut can be tightened with a single wrench
- CNC-machined 7075 aerospace-grade aluminum construction
- CAD-designed profile helps reduce weight while maintaining strength
- Tighter tolerances support improved fit and rear-wheel alignment
- Orange anodized finish for a factory-inspired appearance
- Laser-etched RFX logo
- Designed for compatible KTM, Husqvarna, and GasGas motorcycles

