PIVOTRAX Inner Tubes: Fits most 50cc 110cc 125cc 140cc 150cc 160cc Dirt Pit Bike. For Apollo RFZ dirt bike models, Atomik dirt bikes, Thumpstar bikes, Yamaha PW80, SSR dirt/pit bikes, BSE, YCF Riding, IMR pit bikes, Kayo, Stomp pit bikes, Piranha pit bikes, DHZ bikes, GPX dirt bikes, Pitster dirt bikes, Lifan motorcycles Premium Material: With 2mm thick sythetic rubber (butyl) that absorbs shocks, bumps and hollows won't allow to affect your riding experience and safety. Let's begin the adventure ! Safety First: We designed this inner tube to be puncture resistant. Prevent damage, destruction and injury to the rider. Safe in any season or weather condition. Fits for Honda CRF70, CRF110 Suzuki DRZ110, JR80 Kawasaki KX65, KX110, KLX110 Yamaha TTR90, PW80 Coolster TaoTao Razor SYX Moto Dual purpose: Designed specifically for motocross and enduro use. Our mission is providing the good inner tube and to be your support in anywhere. Tube Features: Seamless construction and Heavy duty durable TR4 valve stem.