TUSK Heavy Duty Motorcycle Inner Tube, 70/100x17, 2 mm Butyl with Centred TR-4 Valve

TUSK Heavy Duty 2mm Motorcycle Inner Tube is a thicker, tougher butyl replacement tube sized 70/100x17 with a centered TR-4 valve for reliable on-bike use and spares.

When a puncture or slow leak leaves you roadside or grounding your weekend ride, the right replacement tube makes the difference between a quick fix and a lengthy repair. This TUSK inner tube uses 2mm butyl rubber—significantly thicker than many original-equipment tubes—so it resists punctures and holds air longer while remaining lightweight. The valve stem is pre-centered (TR-4), and the tube fits 70/100x17 tires, making it a direct swap for compatible wheels or a dependable spare to carry in your toolkit.

How does the 2mm thickness change performance compared to stock tubes?

A 2mm wall provides greater puncture resistance and structural durability versus common 1–1.3mm OE tubes without adding excessive weight. Riders will notice fewer flats from small debris and a tube that tolerates repeated mounting better over time. It’s a practical upgrade for off-road, dual-sport, or street riders who want fewer interruptions.

• Thicker butyl improves resistance to thorns, nails, and glass.
• Less frequent need for patching or replacement.
• Maintains acceptable flex and ride feel for most applications.
• Compatible with standard tire change procedures.

Will this tube fit my wheel and how is the valve positioned?

The tube is sized specifically for 70/100x17 tires; confirm your tire/wheel combination lists that size to ensure a proper fit. The TR-4 valve stem is centered on the tube, making it suitable for wheels with a central valve hole and standard valve access. Centered valves simplify installation and reduce stress on the stem when tires are seated.

• Designed for tires labeled 70/100x17 (verify compatibility).
• TR-4 valve stem pre-centered for typical motorcycle rims.
• Standard valve diameter fits common pump heads and compressors.
• Easy to align during mounting to prevent valve tilt or leaks.

What materials and construction should I expect from this replacement tube?

This inner tube is made from quality butyl rubber chosen for air retention and durability. Butyl’s low permeability keeps pressure stable between rides while resisting degradation from repeated inflation cycles. The heavier-gauge 2mm construction adds tear and puncture resistance while remaining flexible enough for normal tire performance.

• Manufactured from high-grade butyl rubber for long-term air retention.
• Reinforced 2mm thickness for improved puncture tolerance.
• Balanced weight to avoid negatively affecting handling in most cases.
• Suitable for use as an upgraded OE replacement or a spare tube.

How should I use and maintain this tube for best longevity?

Install the tube following standard tire-mounting practices—inspect rim tape, seat bead properly, and avoid pinching the tube during installation. Keep proper tire pressure according to your motorcycle’s specifications to reduce unnecessary stress. Store unused tubes away from heat, direct sunlight, and ozone sources to preserve the rubber.

• Check rim and tubeless valve areas for burrs before fitting the tube.
• Use light talc or a paper sleeve to prevent tube pinching during mounting.
• Inflate to manufacturer-recommended pressures and re-check after first ride.
• Store flat and cool if kept as a spare to avoid premature aging.

Who this is for: The TUSK Heavy Duty 2mm Motorcycle Inner Tube is ideal for dual-sport, trail, and commuter riders who want a more robust replacement than thin OE tubes offer, plus anyone who prefers carrying a reliable spare. It suits owners of bikes that take 70/100x17 tires and those who want a straightforward, long-lasting butyl tube with a TR-4 centered valve for easier installation and fewer roadside repairs.