Check the listing for details. Micro Sprint R6 2007-current Sprocket Nut Washer. Condition: New. Listed at 19.99 USD. Yamaha R6 Engine Compatibility – Designed for Micro Sprint race cars using Yamaha R6 engines from 2007 to current model years, ensuring proper drivetrain hardware fitment., Sprocket Nut Retention Function – Washer helps secure the sprocket nut to the sprocket assembly, preventing loosening and maintaining proper drivetrain alignment., Precision Washer Dimensions – Features approximately 0.83" center hole diameter, 1.31" overall diameter, and .16" material thickness for correct sprocket hardware spacing., Durable Steel Construction – Strong steel washer designed to withstand high-stress racing drivetrain conditions in Micro Sprint applications., Essential Micro Sprint Drivetrain Hardware – Ideal replacement component during sprocket, chain, or drivetrain service to maintain reliable sprocke.