TPU tubes offer many of the benefits of going tubeless: lighter/faster wheel-weight, puncture and pinch-flat resistance, superior road feel through the tyres, streamlined roadside repair kits...  and they  retain the convenience of using tubes.

But electric bike pumps generate heat which can damage  plastic valve stems. Smooth plastic valve stems can also make it difficult to attach your pump.

Fumpa TPU tubes are optimised for use with electric bike pumps with textured metal valve stems to work perfectly with Fumpa and other electric bike pumps.

Features
Made from an ultralight, super-tough, heat-resistant TPU material with textured metal valve stems for great nozzle grip without risk of damage from the heat generated by all electric bike pumps.

Dimensions & Weight
Road: 700c × 18-30mm = 38 grams
Gravel: 700c × 32-47mm = 46 grams
MTB: 27.5" × 2.5" = 65 grams
29er: 29" × 2.5" = 65 grams