RFX FXRS 57-40 99OR aluminum rear sprocket designed for KTM, Husqvarna, and Gas Gas motorcycles. Constructed from CNC machined 7075 aerospace aluminum, this sprocket offers strength and lightweight performance. The laser etched RFX logo adds a distinctive factory bike look. Strengthening gussets improve durability, while chamfered weight-reducing cutouts decrease weight without sacrificing strength. Mud clearing grooves help extend sprocket life by preventing debris buildup. The two-tone anodized and polished finish provides a corrosion-resistant surface with an appealing aesthetic.
This sprocket is engineered to withstand demanding riding conditions, providing reliable power transfer and longevity. Its design ensures compatibility with various KTM, Husqvarna, and Gas Gas models from 1999 onwards, making it suitable for a range of off-road and motocross applications. Easy to install, this sprocket enhances the overall performance and appearance of your bike.
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
