【Wide Compatibility】3.50/4.10-18 inner tube fits KL250 1978-1979, XL185S 1979-1983, CRF230F 2003-2009, XR185 1979, MR175 1975-1977, TL125 1976, XT500 1976-1981, also fits 3.50/4.00-18,100/90-18,100/100-18,110/80-18,110/90-18,120/80-18,【Heavy-Duty, Leak-Resistant】100/90-18 inner tube uses premium butyl rubber, composition plus thickened sidewalls makes them puncture and explosion-resistant. They have excellent air retention/hold air for up to 90 days,【Durable & Leak-resistant Valves】TR4 straight valves are fitted into thick valve seats for enhanced durability. Pure copper dust caps have built-in rubber seals that keep out dust and water can function as a tool to remove the valve core,【Better Shock Absorption】350/410-18 inner tube uses Butyl adds to more stretch, shock absorption, impact and puncture resistance for a smoother ride,【Package Includes】1 x 3.50/4.00-18 inner tube with TR4 straight valve + 1 x Red Stem Valve Cap + 1 x Black Stem Valve Cap + 1 x Valve Core Wrench + 2 x Brass Valve Stem Cores