This Adjustable Rear Lowering Links Kit help to lower your center ,Oimproved rider confidence, providing increased high speed stability.  Suspension link kit are CNC machined from rock-solid T6061 billet aluminum and anodized black for a superior finish that will last. Easy to install, No Installation Instruction The Rear Lowering Links compatible with CRF250R/RX 2018-2023，CRF450R/RX 2017-2023，CRF450X 2019-2023,CRF450L 2019-2023 CRF250R/RX 2018-2021(Lowering 1.5"),CRF250R/RX 2022-2023（Lowering 1.0"），CRF450R/RX 2017-2020(Lowering 1.5")，CRF450R/RX 2021-2023(Lowering 1.0")，CRF450X 2019-2023(Lowering 1.5")，CRF450L 2019-2023(Lowering 1.5") Lowering Link Kit (Lowering 1"-1.5") For CRF250R/RX 2018-2023，CRF450R/RX 2017-2023，CRF450X 2019-2023,CRF450L 2019-2023. Adjustable Suspension Rear.Aluminum CMC,anodized Blue