Kenda Tuff Tube - 100/90-19/--
Kenda Tuff Tube Kenda Tuff-Tubes are 2.5 mm heavy duty butyl-rubber tubes are designed to resist punctures and pinch flatsSizes to fit all popular MX sizesTubes are two times thicker than OEM tubes and are designed specifically for motocross and off-road useTR-6 valve stem 8mm diameter straight threaded metal stem