Forward ST BMX Inner Tube Presta 40mm

The Forward ST inner tube is specially designed for BMX racing, offering excellent reliability and performance. Its robust design enables it to withstand the high stresses associated with powerful starts, landings and repeated accelerations.

Fitted with a 40 mm Presta valve, it ensures precise inflation and is perfectly compatible with most BMX rims. It is a reliable solution for both training and competition.

Note: for high-profile rims, check that the valve length is sufficient before fitting.

Technical specifications:

- Size: 20" x 1.50 / 1.75"
- ETRTO: 40/47 – 406
- Valve type: Presta
- Valve length: 40 mm