2-Pack SPINGO Inner Tube MTB 26inch / 27.5inch / 29inch TPU Inner Tubes for 1.5-2.1/2.2-2.5 MTB TPU Bike Tube with 48mm Presta Valves Lightweight Mountain Bike Spare Tire

Presta Valve TPU Inner Tube：The size of Spingo TPU Inner Tube Presta Valve is 48mm, MTB Mountain bike tube is compatible with many tire sizes 27.5 x 2.10 - 2.50 TPU Material: TPU inner tubes are lighter and stronger than butyl rubber and have higher air tightness than latex. With a weight reduction of 70% compared to ordinary butyl rubber inner tube, the use of this TPU ultra-light inner tube can significantly reduce the rotational mass of the vehicle riding, making the ride more flexible. Portable: The size of the bicycle inner tube is only 4.13in x 2.55in x 1.95in, which is about 2/3 volume less than the traditional butyl rubber inner tube, reduce the burden on the bicycle, and make the ride lighter. Environmental protection: TPU (thermoplastic polyurethane elastomer material) inner tube is made of green and environmentally friendly thermoplastic polyurethane material, which can achieve 100% recyclable. Buy with confidence: After you receive our TPU inner tube, no matter what problems you encounter, you can contact us at the first time, and we will provide technical guidance and after-sales guarantee.