PIVOTRAX Heavy-Duty Motorcycle Inner Tube 90/90-21 (3.00x21) — 3mm Butyl, TR4 Valve

PIVOTRAX heavy-duty motorcycle inner tube — 3mm butyl construction with a TR4 valve for reliable off-road performance in 90/90-21 or 80/100-21 (3.00 x 21) tires.

This inner tube is engineered for riders who demand durable, dependable air retention for motocross, enduro, trail and adventure bikes. Built from thick butyl rubber with a seam-free profile and a TR4 valve stem, it’s optimized to resist punctures and hold pressure across rough terrain. The tube fits common 21-inch front wheel applications and pairs with a broad range of dirt and dual-sport bikes, letting you get back on the trail quickly after a flat.

How tough is this tube for off-road use?

The PIVOTRAX tube uses a 3mm butyl compound and a continuous, seam-free build to reduce vulnerability to punctures and slow leaks. That combination improves resistance against rocks, roots and other trail hazards without adding unnecessary weight.

• 3mm thick butyl rubber for increased puncture resilience
• Seam-free construction to lower air-loss risk
• Designed for rough terrain: motocross, enduro, trail riding

Will this tube fit my 21-inch front tire and bike model?

This tube is specified for 90/90-21 or 80/100-21 (3.00 x 21) tire sizes and uses a TR4 valve stem, a common valve type for motorcycle wheels. It’s compatible with many popular off-road and dual-sport models, making it a practical replacement for a wide range of bikes.

• Fits 90/90-21 and 80/100-21 tire dimensions (3.00 x 21)
• TR4 valve stem for standard wheel rim compatibility
• Works with numerous motocross, enduro and dual-sport models

How easy is installation and maintenance?

Installation is straightforward thanks to the TR4 valve stem and flexible butyl material that seats easily inside the tire bead. Routine maintenance is simple: check pressure before each ride and inspect for cuts or embedded debris to maximize tube life.

• TR4 valve simplifies pump access and rim mounting
• Flexible butyl eases tire mounting and seating
• Low-maintenance: visual checks and pressure monitoring recommended

What advantages does this tube offer over lighter consumer tubes?

Compared with thinner, economy tubes, the PIVOTRAX 3mm option trades minimal weight savings for significantly better durability and fewer roadside repairs. The thicker butyl and sealed construction provide steadier pressure retention and longer service between replacements.

• Greater puncture protection than thin stock tubes
• Reduced frequency of roadside patching or swaps
• Built to perform under aggressive off-road conditions

Who is this for: This inner tube is intended for off-road and dual-sport riders who prioritize durability and reliability—motocross competitors, trail riders, adventure bikers and riders of 21-inch front wheels who want a robust replacement tube. It’s a practical choice for anyone seeking a tougher, longer-lasting inner tube compatible with a wide array of dirt and dual-sport motorcycles.