RFX Pro Series Elite Aluminum Sprocket - 420 (manufacturer part number: FXRS 56-49 99BU): a sprocket designed for motocross riders who seek reliability and lightweight performance on a daily basis. Machined from 7075 aluminum using CNC technology, it combines an optimized CAD profile and tight tolerances for precise geometry and consistent chain retention. The identifiable blue anodization allows for quick identification and matches the colors of off-road machines.
- Material: CNC machined 7075 aluminum
- Number of teeth: 49
- Chain pitch: 420
- Color: anodized blue (color code by model)
- Integrated mud evacuation grooves to limit clogging
- Laser-engraved RFX logo, CAD profile, and rigid design to reduce twisting
Designed to withstand the demands of the terrain, this RFX Pro Series Elite sprocket evacuates mud to extend the life of the chain and maintain a clean transmission. Its precise machining and anodization make it an aesthetic and functional choice for track setups. Compatible with many motocross models, it is particularly suited for KTM 65 SX (2022-2023) and KTM 60/65 SX depending on mounting and settings.
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