Renthal TwinRing Rear Sprocket 50 Tooth Black for Yamaha TTR230 2011-2018

Replacement rear drive sprocket. Weighs half of all-steel sprockets More durable than all-aluminum sprockets. Fits just like stock and conventional sprockets Unique dual-ring design uses strength of steel with light weight of aluminum. Ultralight 7075 T651 inner ring Electroless nickel coated steel outer ring. Self-cleaning chain grooves Multiple colors available