WTB NanoAir TPU Tube, 29" x 2.5"-3.0", Ultralight Mountain Bike Inner Tube, 60% Lighter and 3 Times Smaller Than Traditional Bicycle Tube, 48mm Presta Valve, Includes Two TPU Specific Patches

ULTRA-LIGHT: NanoAir TPU Tubes weigh 60 % less than standard butyl, slashing rotational mass for quicker climbs and snappier acceleration. POCKET-SIZED: Packs to one-third the volume of a regular tube-freeing space for snacks, tools or an extra layer on road, gravel or MTB rides. EXTRA TOUGH: Advanced TPU lay-up resists punctures better than butyl, delivering lasting reliability on techy trails or debris-strewn asphalt. QUICK FIXES: Two self-adhesive glueless TPU patches travel with every tube, letting you seal thorn flats in seconds and keep rolling. 48 MM PRESTA VALVE: Universal length fits most modern rims; removable core simplifies sealant use and inflation.