Athena 16-18 Yamaha YZ 250 F 77mm Bore 250cc Stock Bore Complete Cylinder Kit

When you open this Athena cylinder kit, you'll find everything you need to get your 2016-2018 Yamaha YZ 250 F back to its original performance. This kit includes a lightweight aluminum cylinder with a standard 77mm bore, a complete piston assembly with pin and rings, and all the necessary gaskets to seal everything up tight. It’s designed to match the performance of your stock spare parts, ensuring your bike runs reliably and smoothly.

Athena focused on reducing friction and improving durability with this kit. The aluminum cylinder itself is built with a nickel-silicon coating in the barrel, which is known for its wear resistance and ability to handle heat. The piston is also designed with friction reduction in mind, helping your engine run more efficiently. This means you get that original power delivery back, with the confidence that comes from well-made components.

This is a complete package for a stock bore rebuild. If you're looking to restore your YZ 250 F's engine to its factory specifications, this Athena kit has you covered with all the essential pieces. Just remember, this kit is not CARB approved and cannot be shipped to California.