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The RK 4107-158DGX 520 Aluminum Race Kit is engineered for riders seeking enhanced performance and reduced weight on their Yamaha YZF-R1/M. This kit features RK’s premium lightweight XW-ring sealed racing chain with a striking gold finish, designed to deliver durability and minimal rotational mass. The chain's high-performance sealing technology ensures long-lasting operation even under demanding racing conditions. Paired with a premium Driven® 7075 T6511 lightweight aluminum rear sprocket that is black hard anodized for increased durability, the kit provides improved acceleration and responsiveness. The front sprockets include a steel case-hardened and quenched Driven® C45 steel sprocket, along with a one-tooth-smaller-than-stock sprocket, allowing customizable gearing ratios for optimal performance. These components work together to reduce rotational inertia, enabling quicker starts and a faster throttle response across all gears without compromising ride quality or handling. Whether for track days or competitive racing, this kit offers a significant upgrade for Yamaha YZF-R1/M owners looking to maximize their bike's acceleration and overall performance. Installation is straightforward, making it an excellent choice for those looking to boost their motorcycle's racing capabilities with reliable, high-quality components from RK and Driven®. Experience the benefits of race-grade gearing and lightweight sprockets that help you reach your bike’s red line more efficiently and with greater control.
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