COMPATIBLE TYPE: Heavy duty 2.50/2.75-17" inch tube with TR4 straight valve stem.They perfect compatible with for some 2.50-17, 2.75-17, 60/100-17, 60/90-17, 70/100-17, 70/90-17 front and rear tire.
HIGH QUALITY:Heavy duty butyl rubber tube 3 mm thick is designed to prevent puncturing and clamping flat, especially suitable for motocross and off-road use.
SHOCK ABSORPTION: The thickened butyl rubber inner tube design adds more stretch, shock absorption, impact and puncture resistance, and the smoother ride allows you to experience excellent riding performance; They provide better shock and vibration absorption, ensuring that bumps and drops won't be a big problem.
TR4 STRAIGHT VALVE STEM:Rubber-coated stem enhances seat seal and prevents sand and dust from entering inner tubes and tires. The robust rubber stem seat is also tear resistant, extending valve life.
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