PIVOTRAX 19" Heavy-Duty 2mm Butyl Inner Tube for 3.00-19 MX Tires — TR4 Metal Valve, E-Bike Compatible

PIVOTRAX 19" heavy-duty 2mm butyl inner tube built for electric dirt bikes and motocross tires delivers reinforced puncture resistance and a durable TR4 metal valve for reliable off-road performance.

Riders of electric dirt bikes and 19" motocross wheels need an inner tube that stands up to rough terrain, higher loads and frequent PSI changes. This PIVOTRAX inner tube is designed to fit most 3.00-19 MX tires (also listed as 70/100-19, 2.75/3.00-19, 80/100-19), with a 2 mm thick butyl rubber body and a reinforced TR4 valve stem to reduce flats and valve failures. It balances durability with compatibility so you can replace tubes quickly and get back on the trail.

How does this tube handle electric bike weight and torque?

The 2 mm reinforced butyl compound increases puncture resistance and slows down heat buildup under higher loads typical of e-bikes. The thicker wall resists pinch flats and abrasions from rough terrain while maintaining consistent air retention under repeated acceleration and braking.

• 2 mm synthetic butyl rubber for improved strength and durability
• Designed for e-bike loads and higher PSI ranges
• Reduces pinch flats and abrasions compared with thinner tubes

Will it fit my bike model and tire size?

This inner tube is engineered to fit common 19" motocross and e-bike tire sizes including 3.00-19, 70/100-19 and 80/100-19. It's compatible with many popular electric dirt bikes such as Surron Light Bee X, Ultra Bee, Talaria Sting, Segway X260 and other 19-inch performance machines.

• Fits most 3.00-19 MX tires and equivalent sizing listed
• Compatible with a wide range of e-bike dirt bike models
• Standard 19" diameter for motocross and enduro rims

What makes the TR4 valve stem better for off-road use?

The tube uses a reinforced TR4 metal valve stem with a seamless design to minimize air leaks and resist bending during tire swaps or when subjected to lateral forces. Metal TR4 stems are more durable than rubber valves and better suited to high-PSI inflation, frequent service, and rugged trail conditions.

• Heavy-duty metal TR4 valve resists bending and leakage
• Seamless construction supports repeated tire changes
• Reliable air retention during high-acceleration and jumps

How tough is the tube against punctures and impacts?

The thicker butyl rubber and reinforced construction improve resistance to common off-road hazards like thorns, rocks, and rim pinch. While no tube is puncture-proof, this design reduces the frequency of flats and blowouts compared with thin, standard replacement tubes.

• 2 mm wall thickness to absorb impacts and reduce punctures
• Engineered to perform across seasons and varied trail conditions
• Better longevity and fewer roadside repairs than economy tubes

Who is this for: The PIVOTRAX 19" 2mm inner tube is aimed at riders who push electric dirt bikes, motocrossers and enduro enthusiasts who need a tougher tube than standard replacements. It’s ideal for owners of Surron, Talaria, Segway X260 and similar 19" e-bikes, mechanics who service off-road bikes, and weekend trail riders who prefer fewer flats and reliable valve performance during high-demand rides.