RFX FXRS 57-43 99BU aluminum rear sprocket for KTM, Husqvarna, and GasGas motorcycles. Constructed from CNC machined 7075 aerospace aluminum, this sprocket offers strength and lightweight performance. The kit includes the sprocket with laser-etched RFX logo, chamfered weight-reducing cutouts, and mud clearing grooves for extended sprocket life. Features a two-tone anodized and polished finish delivering a factory bike appearance. Strengthening gussets enhance durability under harsh riding conditions.
Designed for optimal performance, this sprocket combines precision engineering with corrosion resistance, making it suitable for competitive and recreational riding. The lightweight design reduces rotational mass, aiding acceleration and responsiveness. Easy installation ensures a secure fit on compatible KTM, Husqvarna, and GasGas models, providing a reliable upgrade for your drivetrain.
Features:
Laser etched RFX logo
CNC machined from 7075 aerospace aluminum
Strengthening gussets
Chamfered weight-reducing cutouts
Mud clearing grooves for longer lasting sprocket life
