RFX FXRS 31-49 99BU aluminum rear sprocket is designed for durability and performance on dirt bikes.
Constructed from CNC machined 7075 aerospace aluminum, it offers strength and lightweight benefits. The sprocket features strengthening gussets and chamfered weight-reducing cutouts to optimize performance and reduce weight. Mud clearing grooves help extend sprocket life by preventing debris build-up. The 2-tone anodized and polished finish provides a factory bike appearance, suitable for racing or recreational riding.
Each sprocket displays a laser-etched RFX logo for authenticity and style, making it a practical upgrade for riders seeking durability and a performance edge.
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
2-tone color anodized/ polished finish for that Factory Bike look
