ZLGouES 19-inch Inner Tube 2.75/3.00-19 (70/100-19, 80/100-19) — 2.1mm Heavy‑Duty with TR4 Valve

This ZLGouES heavy-duty 19" inner tube is a 2.1 mm thick replacement tube built for electric and motocross dirt bikes that fit 2.75/3.00-19, 70/100-19 and 80/100-19 tires.

If you ride Surron, Talaria, UltraBee, EridePro, or similar electric off-road bikes—or conventional motocross models like CRF and KLX—you need a durable tube that resists punctures, pinch flats and valve failures. This inner tube is made from thicker natural rubber and uses a TR4 valve stem engineered to reduce twisting and splitting, helping keep you rolling across rough trails and technical terrain.

Will this tube fit my 19-inch electric dirt bike rim?

Yes—this tube is designed to fit most 19" rims with tire widths between 2.75" and 3.00" and common sizes such as 70/100-19 and 80/100-19. It’s compatible with many electric dirt bike models and standard motocross pit bikes that use those sizes.

• Fits 19" rims supporting 2.75/3.00-19, 70/100-19 and 80/100-19 tires
• Commonly used on Surron, Talaria, UltraBee, EridePro, CRF, KLX, TTR models
• Works for both front and rear applications when size matches

How tough is the 2.1 mm rubber construction?

The 2.1 mm thick natural rubber gives a stronger wall than many thin replacement tubes, improving resistance to punctures and pinch flats on rocky trails. It absorbs impacts and helps prevent sudden ruptures under stress, while maintaining enough flexibility for proper seating inside the tire.

• 2.1 mm thickness for enhanced puncture and pinch resistance
• Natural rubber formulation balances toughness with flexibility
• Engineered to reduce sudden ruptures and extend tube life

What are the advantages of the TR4 valve stem on this inner tube?

The TR4 valve stem is short, straight and threaded for secure installation and simpler inflation with common pumps. It’s molded to minimize pinching and twisting at the base, which reduces the chance of valve failure and air leaks while riding.

• Short, straight TR4 valve for easy pump access and inflation
• Threaded section helps secure caps and pump adapters
• Molded base prevents twisting, pinching, and valve splitting

Can this tube handle aggressive riding and variable weather?

Yes—its heavy-duty build and material choice make it suited for off-road use across seasons. While no tube is puncture-proof, this design raises the threshold for common trail hazards and performs reliably in wet or dry conditions.

• Improved pinch and puncture resistance for rough terrain
• Durable under varying temperatures and weather conditions
• Designed for motocross, enduro, and electric dirt bike applications

Who this is for: Riders who want a stronger replacement tube for 19" dirt bike tires—especially owners of Surron, Segway, Talaria, UltraBee, EridePro X160/X260 and common motocross models like CRF and KLX. Choose this ZLGouES inner tube if you want a thicker, more durable tube with a reliable TR4 valve for trail riding, pit bikes, or daily off-road use.