This cylinder piston kit is designed for KTM300EXC XCW from 2017 to 2019. The kit includes a piston with a diameter of 72mm and piston rings. It is made in Taiwan and comes with a 1-month manufacturer warranty. In addition to the standard size, this piston kit also fits interchange part number 55630307100 and OE/OEM part number 55630307100. Please note that this item is brand new and unused, and comes in its original packaging. It is suitable for motorcycles and scooters, and meets California Prop 65 requirements.