Ultralight TPU Bicycle Inner Tube 48 g 26×1.9–2.5 (48–62 mm) with 45 mm French Valve for Mountain Bikes 66 cm
This ultralight green inner tube made from thermoplastic polyurethane (TPU) is designed for mountain bikes with a wheel diameter of 66 cm and a tyre width of 4.8–6.2 cm. With a low weight of just 48 grams, it reduces the rotational weight of the bike, allowing for quicker acceleration and a more comfortable ride.
The TPU material is lighter and stronger than standard butyl rubber. It offers excellent flexibility, puncture resistance, and long lifespan. It maintains pressure better, reduces rolling resistance, and ensures a smooth ride on asphalt, gravel, and in rough terrain.
The inner tube is fitted with a 45 mm French valve (Presta), which allows for easy and precise inflation. It is suitable for rims with both rim and disc brakes and ensures reliable sealing.
- Low weight of 48 g – up to 70% lighter than traditional inner tubes
- TPU material – strong, flexible, and puncture-resistant
- 45 mm French valve – easy and precise inflation
- Size 26×1.9–2.5 (48–62 mm) – suitable for most mountain bikes
- Green design – modern and highly visible
- Package contents: 1× inner tube
Before installation, we recommend slightly inflating the tube (approximately 0.5 bar) to ensure it settles evenly in the tyre. Do not inflate it outside of the tyre – this could cause damage. Use a hand pump, not an air compressor.
The TPU inner tube is an ideal choice for cyclists who want to combine low weight, long lifespan, and reliable performance.