Built for the rigors of off-road riding, the Kenda TR-6 Heavy-Duty Tire Tube in 275/300-21 is the trusted inner tube choice for dirt bike and enduro front wheels. The 21-inch sizing is the standard for front dirt bike wheels, and the TR-6's thicker butyl rubber construction ensures your tube holds air pressure when the trail gets rough.
Whether you ride motocross, enduro, hard enduro, trail, or adventure, a quality inner tube is critical for handling, safety, and confidence. Kenda TR-6 tubes are used by riders at all levels, from weekend trail riders to competitive off-road racers who demand the best.
- Size: 275/300-21 | Compatible with 80/100 tire sizing
- Heavy-duty TR-6 construction specifically for front dirt bike wheels
- Thicker butyl rubber resists pinch flats and trail punctures
- Industry-standard sizing for 21" front wheels on dirt bikes and enduros
- TR-6 bent valve stem for easy inflation and pressure checks