
RFX Pro Series Elite Aluminum Sprocket - 428
Manufacturer part number: FXRS 51-45 99OR
Designed for demanding motocross riders, this RFX Pro Series Elite sprocket is CNC machined from high-strength 7075 aluminum. Its optimized CAD profile offers a balance between lightweight and rigidity, while tight tolerances improve chain/sprocket contact for a more direct and reliable power transfer on challenging terrains.
The orange anodized finish and laser-engraved RFX logo add a racing touch and a specific color code by brand for easier installation. Mud evacuation grooves have been integrated to limit dirt accumulation and contribute to the longevity of the chain and sprocket during muddy outings.
Specifically designed for motocross — among the compatible models: KTM 85 SX STD WHEELS 17/14 (2025), HUSQVARNA TC 85 STD WHEELS 17/14 (2025), and GAS GAS MC 85 19/16 (2025). A sprocket designed for riders who want to combine a racing look with high-performance components on the track.