RFX FXRS 57-38 99BU aluminum rear sprocket is engineered for performance and longevity on motocross and off-road bikes. Made from CNC-machined 7075 aerospace aluminum, it offers lightweight strength with a chamfered design to reduce weight without sacrificing durability. The sprocket features strengthening gussets and mud clearing grooves, enhancing lifespan and maintaining optimal performance in muddy conditions.
The sprocket's two-tone anodized and polished finish provides a factory-style appearance, matching high-end motocross bikes. Laser-etched RFX logo adds a touch of style and authenticity. This sprocket is designed to withstand rigorous riding and harsh environments, making it suitable for aggressive riders seeking a reliable upgrade.
Included in the package is the aluminum rear sprocket with all necessary mounting hardware. Proper installation ensures smooth power transfer and drivetrain efficiency for KTM, Husqvarna, Gas Gas, and other compatible models. Enhance your bike’s performance with this durable, lightweight sprocket designed for competitive and recreational riding.
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
