RFX Pro Rear Axle Adjuster Blocks Chain tensionerRef : RFX00576A / 1123306001

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

Specifically designed for the Cross world, these RFX Pro series axle tensioners offer a race finish and easy installation during rear wheel interventions. CNC machined from aerospace-grade 7075 aluminum, they are sold in pairs and come in blue anodization to match the original look of modern machines.

• Material: 7075 aluminum (CNC machining)
• Finish: blue anodized with laser-engraved RFX logo
• CAD design for low weight and tight fit tolerances
• Graduated scale on both sides for precise alignment adjustment
• Packaging: sold in pairs

Installation: recommended for a hassle-free rear wheel removal/reinstallation. Clean the swingarm, grease the axle and spacers, position the new blocks, and align the wheel using the graduations before tightening to the manufacturer's specified torque. For some KTM models, reinstalling the axle may require red thread locker.

Common compatibilities (examples): KTM 450 SX-F 2025, Husqvarna FC 450 2025, GAS GAS EC 500 F 2024.