Renthal Ultralight Rear Sprocket 51T Black 112U-520-51GEBK

Reducing unsprung weight is one of the most effective ways to improve acceleration and handling dynamics on a sportbike or dirt bike. The Renthal Ultralight Rear Sprocket replaces heavy steel with precision-engineered 7075-T6 aluminum, cutting weight by approximately 66% while maintaining the strength needed for high-performance riding. The self-cleaning mud grooves engineered into each tooth prevent debris accumulation, ensuring consistent power delivery and extending sprocket life under demanding conditions.

This is a bolt-on replacement designed specifically for Kawasaki motorcycles running 520 chain drive. The black anodized finish provides both corrosion protection and a clean factory appearance, making it ideal for riders who demand performance without compromise.

• Material: 7075-T6 aluminum alloy
• Construction: CNC-machined
• Chain Size: 520
• Tooth Count: 51T
• Weight: ~1.00 lbs
• Weight Reduction: 66% lighter than steel
• Finish: Black anodized
• Self-Cleaning: Mud grooves at each tooth
• Fitment: Kawasaki rear wheel
• Installation: Bolt-on replacement