Yamaha YZ250X 2017 - 2019 Renthal Black Twinring 50t Rear Sprocket Aluminium/Steel Combo

Renthal Twinring Rear Sprockets

• Renthal Twinring benefit from over 50 years of motocross rear sprocket manufacturing expertise and the help of the top Off-Road and Enduro factory race teams, Renthal has developed the ultimate dirt bike rear sprocket for those looking to ride more and work less.
• The unique, dual-material design combines a hardened steel outer chain ring that is heated to 200 degrees C before being perminantly fitted to our Ultralight aluminum inner, creating a permanent bond for the life of the sprocket.
• The result is a lightweight, long-wearing rear sprocket fit to tackle any condition you can find, without adding unnecessary unsprung weight and compromising power delivery.
• The inner ring of the unique Renthal Twinring is engineered from Ultralight 7075 T6 Aluminium. This keeps the weight of the Twinring to a minimum.
• Renthal Twinring feature a Electroless Nickel Plated steel. This ensures an ultra long service life of the chainwheel, providing you with maximum power transfer longer than ever.
• Each Twinring that leaves Renthal's engineering facilities in the UK is individually CNC machined to the tightest possible tolerances, ensuring an accurate and reliable fit.
• The Outer ring is expanded to 200 degrees C to be fitted to the inner ring. Cooling creates a permenant bond. Flat socket set screws prevent lateral movement between the rings in high velocity impacts.
• Twinring feature Renthal's self cleaning mud groove technology between each tooth. This prevents mud build up that traditionally leads to quicker wearing components.

The above product photos are used for illustration purposes only and may vary slightly.

Fitment Details

• Yamaha YZ250X 2017
• Yamaha YZ250X 2018
• Yamaha YZ250X 2019