Mountain Bike Inner Tubes 2-Pack WHEELO MTB 26x2.1/2.5 Bike Inner Tube, Ultralight Bike Tube With 48mm Presta Valves For Mountain Bike (Include Bike Tube Patch Repair Kit) Orange Inner Tube 27.5 [Fits multiple tire sizes]: Choose from 48mm Presta valve lengths to suit your bike rim, This MTB bike tube is compatible with many tire sizes:26/27., 5/29×2., 1/2., 5., [Compact and Portable]: With a 70% reduction in weight compared to traditional inner tubes, this bike tube only 80g is incredibly compact and easy to carry. Buy 2-Pack WHEELO MTB 26/27.5/29x2.1/2.5 Bike Inner Tube, Ultralight Bike Tube with 48mm Presta Valves for Mountain Bike (Include Bike Tube Patch Repair Kit) online on at best prices. Fast and free shipping free returns cash on delivery available on eligible purchase [Enhanced Performance]: TPU inner tubes are lighter, reducing rolling resistance for improved speed and performance. Package includes: 2 bike tires, 2 bike tubes, 2 tire levers. Extremely Durable: 27.5 bike tire and inner tubes are made of Rubber material for good shock absorption and durability, Puncture-proof design for MTB riders and daily off-road road conditions [Featherweight and Durable]: Crafted using advanced Thermoplastic Polyurethane (TPU) technology, these tubes weigh a mere 80g, striking the perfect balance between durability and lightweight design. NOBRAND 700X35C/38C/40C/43C Bike Inner Tube, Schrader Valve 48mm, 2 After installing the tire, follow the tire pressure calibration.