RFX Pro Series Axle Blocks are designed to speed up and improve wheel changes with easy fitting and more precise alignment.
RFX FXAB 40300 99BU rear axle blocks are designed for Yamaha YZ250F and YZ450F models from 2014 to 2018, providing quick wheel changes and precise alignment for motocross bikes.
Constructed from CNC-machined 7075 aerospace aluminum and CAD-designed for lightweight performance, these axle blocks feature tighter tolerances for an improved fit and consistent performance. The anodized blue finish adds a factory bike appearance, ensuring durability and style for competitive riders.
The kit includes one axle holder that secures one side, allowing you to tighten with just one spanner for faster, easier wheel swaps. Laser-etched RFX logos enhance the aesthetic and brand recognition, making these axle blocks a reliable upgrade for Yamaha motocross bikes.
