
The EK/PBR 525ZVX3 16/45 chain kit is a complete equipment designed for the final drive of modern roadsters. Coming from EK Chain's ZVX series, this version focuses on a robust design: a high-strength 525 chain, a 16-tooth sprocket, and a standard 45-tooth steel rear sprocket to withstand the demands of powerful engines while facilitating regular maintenance.
Designed for demanding road use, this kit is aimed at riders looking for a durable chain and reliable transmission without radical modifications to the drivetrain. Its construction is particularly suitable for high-displacement roadsters — ideal for the Yamaha XSR 900 (2024 and 2025 models, including the GP version).
Before installation, check the number of teeth and length for your model, and adhere to the manufacturer's torque specifications. Regular lubrication and tension will extend the lifespan of the transmission.