RFX FXRS 31-48 99BK aluminum rear sprocket for Yamaha motorcycles. Constructed from CNC machined 7075 aerospace aluminum, it offers high strength and lightweight performance. The sprocket features laser-etched RFX logo, strengthening gussets, and chamfered weight-reducing cutouts for optimized weight distribution. Mud clearing grooves help extend sprocket life by preventing debris buildup. The two-tone anodized and polished finish delivers a factory bike appearance. This sprocket is designed for durability and long-lasting performance, suitable for riders seeking reliable drivetrain components.
Manufactured from aerospace-grade aluminum in China, this sprocket combines precision craftsmanship with corrosion resistance. It includes the sprocket itself and mounting hardware necessary for installation. Ideal for motocross, trail riding, and off-road applications, this sprocket enhances power transfer efficiency and chain stability.
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
