Material: isobutylene. Weight: 121 g.
Our inner tubes are tested continually by our professional teams, such as the U-19 PRO Racing Team and the MTB Racing Team.
To guarantee optimal quality, 100% of our inner tubes are inflated for a period of 8 hours.
Carry your inner tubes in a container that protects them from perforations (B'TWIN carry case, original packaging, etc.).
To find out the size of your wheels, check the information printed on the tyre wall. Always carry a spare inner tube and a pump.