Polisport chain guides are perfect replicas of the OEM stock parts produced in TPU (Thermoplastic polyurethane) to guarantee better resistance to abrasion and impacts. Our chain guides are produced to be durable and to perfectly fit your dirt bike. Injection-molded quality plastic components with a perfect OEM fit. Exact replica of stock OEM plastic components but stronger Inexpensive alternative to OEM replacement parts. Stock color match Resistant to impact and abrasion Produced in TPU (Thermoplastic polyurethane) Tougher than stock chain guides Packaged in a printed plastic bag Fits: Yamaha WR250F 2009 2011-2012 2014-2021 WR450F 2009 2011-2021 WR450FSP 2021 YZ125 2009 2011-2021 YZ250 2011-2015 2017-2021 YZ250F 2009 2011-2021 YZ250FSP 2021 YZ450F 2009 2011-2015 2017-2021 YZ450FSP 2021