TECNIUM Inner Tube 2.75/3.00-21 90/80-21 TR4 — Replacement part designed to fit 21-inch wheels equipped with tubetype tires. This standard-sized inner tube matches the common dimensions of off-road and enduro motorcycles, offering easy compatibility with tires 2.75-21, 3.00-21, and 90/80-21.
- Wheel diameter: 21"
- Wall thickness: 1.5 mm (standard thickness)
- Valve: TR4 (straight valve, standard format)
- Type: standard inner tube, delivered unmounted
- Manufacturer reference: 04-0888
Practical for a quick roadside repair or for maintenance in the workshop, this TECNIUM inner tube fits compatible rims and installs like a traditional tube: inflation, bead checking, and leak testing before getting back on the bike. Sold individually, it is aimed at riders looking for a reliable replacement part that meets the specified dimensions.
