Twin Air Radiator Sleeves HONDA CRF 450R 2019-2020, CRF 450RX 2019-2020\nTwin Air Radiator Sleeves prevent mud, dirt and sand entering your machines radiators before it can build up causing overheating and eventually, damage your bike\u2019s engine. Easy to install \u2013 simply remove the radiator louvres and slide the sleeve with its elasticated fitment and pre-punched holes for the mounting pins over, before refitting the louvre. This breathable barrier of nylon-coated, glass yarn mesh allows dry dirt to simply fall off after build-up from the vibrations off your bike. HONDACRF 450R 19-20CRF 450RX 19-20\n\nTwin Air Radiator Sleeves HONDA CRF 450R 2019-2020, CRF 450RX 2019-2020\n\nTwin Air Radiator Sleeves prevent mud, dirt and sand entering your machines radiators before it can build up causing overheating and eventually, damage your bike\u2019s engine. Easy to install \u2013 simply remove the radiator louvres and slide the sleeve with its elasticated fitment and pre-punched holesy