20x1 3/8 Inch (37-451) for 17.75" Rim Bike Inner Tube Pack of 2 - FV48mm Valve with Free AV Adapter - Compatible with City Cruisers, Commuter Bikes, Folding Bikes, Kids/Juvenile Bicycles

20x1 3/8 Inch (37-451) for 17.75" Rim Bike Inner Tube Pack of 2 - FV48mm Valve with Free AV Adapter - Compatible with City Cruisers, Commuter Bikes, Folding Bikes, Kids/Juvenile Bicycles

• 【PERFECT FIT FOR 20x1 3/8" (37-451) TIRES 17.75" Rim】Designed specifically for tires marked "20 x 1 3/8" or "37-451" on the sidewall. Ideal for city cruisers, commuter bikes, some folding bikes, children's/juvenile bikes, and some beach cruisers/tricycles.
• 【2 INNER TUBES + FREE VALVE ADAPTER】Includes two high-quality inner tubes with FV48mm (Schrader) valves PLUS a free FV to AV adapter. This makes the tubes compatible with both Schrader (American) and Presta (French) valve rims, offering universal versatility.
• 【RELIABLE & DURABLE CONSTRUCTION】Made from flexible, high-strength rubber that resists punctures and withstands consistent pressure. Excellent air retention and elasticity for a smooth, stable ride on urban roads and light trails.
• 【EASY INSTALLATION & CONVENIENCE】Keep a spare on hand for quick roadside repairs or home maintenance. Perfect for cyclists who want to minimize downtime and enjoy peace of mind during daily commutes or leisure rides.
• 【VERIFY YOUR SIZE BEFORE ORDERING】Always double-check the numbers printed on your current tire sidewall. If you see "20 x 1 3/8" or "37-451", or measure your rim 17.75" this tube is the exact replacement. Suitable for most 20-inch wheel bicycles with this specific width.