Purchased this like new 2021 WP Shock for my 2019 SX 250 and never needed it. Had it serviced and have three springs to choose from: 42, 52, or 56). This Shock will fit many years and many bikes such as the KTM, Husqvarna, and Gas Gas. Should fit 2017-2022 but please ask or inquire. Pricing this for a fast sell and also have my forks for sale with the Race Tech SCS Spring Conversion System installed, in another post. Please ask any questions and thanks for looking!