Polisport continue to break barriers in off road plastic parts technology setting the mould of the future. Polisport chain guides & swing arm protectors are produced with Durable Gloss Polypropylene (DGP) technology that provides maximum resistance to impact and also has extremely high resistance to premature wear breakage and discolouration. Fits: Honda CRF250R 2011-2013 2015-2021 CRF250RX 2019-2022 CRF450R 2011-2012 2014-2021 CRF450RX 2017-2020