MITAS 70001343 Heavy-Duty Motorcycle Dirtbike Inner Tube - 100/100-18 / 130/80-18 / 4.25-18 / 120/80-18 / 110/80-18 / 110/100-18 / 110/90-18 / 120/100-18 / 4.50-18 / 5.00-18 / 4.00-18 / 120/90-18 / 4.75-18 - 18" - TR-6 - Center Metal Valve

OVERVIEW

This heavy-duty inner tube delivers reliable air retention and impact resistance for motorcycles, scooters, and mopeds operating on urban streets or uneven terrain. Constructed with a reinforced 2 mm wall thickness, it provides robust structural support for 18-inch wheel assemblies requiring TR-6 valve stems.

ENGINEERING & PERFORMANCE

The increased wall thickness absorbs road debris impacts and reduces sidewall flex, minimizing the risk of pinch flats during aggressive cornering or curb contact. A galvanized steel TR-6 center valve stem maintains precise inflation pressure while resisting corrosion at the critical bead mating surface. Mounted washers and a dual-cap system (metal plus rubber) create a secure seal that prevents micro-leaks caused by high-frequency vibration. Each unit is sealed in a nitrogen-rich pouch at the factory to inhibit internal oxidation, preserving rubber elasticity until installation.

KEY FEATURES

• Heavy-duty 2 mm wall construction for superior puncture and impact resistance
• Galvanized steel TR-6 center valve stem for accurate pressure readings and long-term corrosion resistance
• Dual sealing components including mounting washers and combined metal/rubber valve caps
• Multi-size coverage spanning 100/100-18 through 5.00-18 tire specifications
• Nitrogen-preserving packaging protects compound integrity during warehouse storage
• Broad application compatibility across motorcycles, scooters, and mopeds

TECHNICAL SPECIFICATIONS

• Brand: Mitas
• Part Number: 70001343
• Product Type: Inner tube
• Wall Thickness: 2 mm (Heavy Duty grade)
• Valve Configuration: TR-6 center metal stem
• Compatible Tire Dimensions: 100/100-18, 130/80-18, 4.25-18, 120/80-18, 110/80-18, 110/100-18, 110/90-18, 120/100-18, 4.50-18, 5.00-18, 4.00-18, 120/90-18, 4.75-18
• Rim Compatibility: 18-inch diameter assemblies
• Shelf Life Protection: Vacuum-sealed in nitrogen-rich atmosphere

FITMENT

• 18" Wheel Assemblies Requiring TR-6 Valves
• 100/100-18 and 130/80-18 Tire Specifications
• 4.25-18, 120/80-18, 110/80-18, 110/100-18, 110/90-18 Dimensions
• 120/100-18, 4.50-18, 5.00-18, 4.00-18, 120/90-18, 4.75-18 Dimensions

WHY RIDERS CHOOSE THIS

Riders select this Mitas tube when they need a durable replacement that withstands repeated curb strikes, gravel tracks, and tight bead seating without sidewall distortion. The thicker 2 mm profile distributes mechanical stress more evenly than standard OEM replacements, extending service intervals while maintaining predictable handling characteristics. Builders value the straightforward TR-6 valve layout, which aligns cleanly with common street and dual-sport wheel patterns, simplifying swaps across multiple machines. The factory nitrogen packaging guarantees fresh, dry compound straight out of the pouch, eliminating the moisture degradation that routinely compromises outdated inventory on retailer shelves.