
RFX Pro FAST Rear Wheel Spacer (Blue) - Yamaha YZF250/450
Designed for motocross riders seeking reliability and speed on the track, this RFX Pro FAST rear spacer combines lightweight design with strength. Machined from 7075-T6 aluminum, it offers good mechanical resistance while minimizing unsprung weight to maintain the bike's maneuverability. Its blue anodized finish protects the surface against abrasion and reduces mud and dirt adhesion.
The specific tapered profile facilitates wheel changes: the spacer stays in place without falling during disassembly/reassembly operations. Careful sealing prevents dirt accumulation in the hub, which helps preserve the bearings and prolong the lifespan of the rear end. The laser-engraved logo discreetly and durably marks the part.
Compatibility (examples): YAMAHA YZ 450 F (2026), YAMAHA YZ 250 F (2026), YAMAHA YZ 450 F (CJ23) (2021). Manufacturer reference: FXWS4060199BU.