RFX Pro Rear Axle Adjuster Blocks Chain tensionerRef : RFX01241A / 1123306003

RFX Pro Chain Tensioners — Manufacturer Ref: FXAB 50600 99RD

Designed for off-road riders, these RFX Pro chain tensioners are CNC machined from aluminum to ensure consistent dimensions and finish. Presented in anodized red, they are sold in pairs and replace the original axle blocks for precise adjustment of the rear wheel alignment without guesswork.

• Packaging: sold in pairs
• Color: anodized red
• Material: CNC machined aluminum
• Category: chain tensioner

Suitable for the motocross environment, these tensioners provide consistent support surfaces for the axle and clear reference points when adjusting chain tension. Their precise machining reduces assembly play and makes it easier to reposition the wheel after maintenance or tire changes. Ideal for mechanics and riders who want a repeatable and clean adjustment on the track or during trail rides.

Common compatibilities: KTM 450 SX-F (2025), HUSQVARNA FC 450 (2025), GAS GAS EC 500 F (2024) — check the reference and axle dimensions of your machine before installation.