Renthal Ultralight Rear Sprocket 43T 520 Chain Kawasaki 184U-520-43P-HA

Shaving rotational mass is one of the most effective ways to improve acceleration and throttle response, especially on lightweight sportbikes where every gram matters. The Renthal Ultralight 43T Rear Sprocket delivers a 66% weight reduction over steel without compromising durability, thanks to its CNC-machined 7075-T6 aluminum construction. If you're chasing faster lap times or sharper street performance, this is the kind of precision upgrade that makes a measurable difference.

The self-cleaning mud grooves machined into each tooth prevent debris accumulation, which extends sprocket life and maintains consistent power transfer under demanding conditions. Paired with tight tolerances and an advanced tooth profile, this sprocket ensures maximum efficiency from your chain drive. Installation is straightforward on Kawasaki platforms, making this an accessible bolt-on upgrade for riders ready to optimize their setup.

• Tooth Count: 43T
• Chain Size: 520
• Material: 7075-T6 aluminum
• Weight Reduction: 66% lighter
• Construction: CNC-machined
• Finish: Anodized
• Position: Rear
• Application: Street riding
• Fitment: Kawasaki specific
• Installation: Bolt-on