All Balls Racing - Rear Shock Seal Head Assemblies (37-1004) Options:(37-1004) Replace it with a Twin

Replace it with a Twin Air- the #1 filter system proven on motocross tracks around the world

piston and exhaust port deposits Compatible with catalytic converters Exceeds JASO FC Standard: API TC / ISO-L-EGD

Chafe-free flat-lock seams

charger and optional mount not included

The calf protector has an anti-slip rubber insert and is heat proof

All Balls Racing - Rear Shock Seal Head Assemblies (37-1004) Options:(37-1004) Replace it with a TwinKit comes with rear shock seal head completely assembled, ready to install. Direct OEM replacement featuring the latest OEM style seal with pre scraper. All designs incorporate an air bleed hole for easy re assembly.