TUSK Heavy-Duty 2mm Butyl Motorcycle Inner Tube 110/90x19 & 120/90x19 — Reinforced, Centered TR-4 Valve

The Tusk Heavy Duty 2mm motorcycle inner tube is a reinforced butyl replacement tube built for 19-inch offroad and dual-sport tires, offering added puncture and pinch resistance for trail or street use.

Riders who demand tougher tubeless alternatives but still run inner tubes can upgrade to this thicker-walled option to reduce downtime and improve reliability on rough terrain. Constructed from high-quality butyl rubber with a centered TR-4 valve stem, this dual-size tube fits both 110/90x19 and 120/90x19 tires so you can keep one spare that covers common front or rear applications. It’s designed to hold pressure well, tolerate temperature swings, and resist aging better than many OEM tubes.

How does the 2 mm wall improve durability on rocky trails?

The reinforced 2 mm thickness adds a physical buffer between the rim and the trail surface, lowering the chance of pinch flats and punctures from sharp objects. It won’t make your tire completely immune, but it reduces incidents that commonly cause unexpected air loss during aggressive riding.

• Thicker rubber decreases pinch-flat risk at lower pressures
• More material between rim and debris helps block small punctures
• Better resilience when hitting rocks, roots, and hard landings

Will this tube fit my 19-inch tire and rim setup?

This tube is manufactured to fit both 110/90x19 and 120/90x19 tire sizes, making it suitable for many front and rear wheel combinations on dual-sport and offroad bikes. Always verify your exact tire size stamping and confirm rim compatibility before installation, and check rim-edge condition to prevent stress points that could damage the tube.

• Dual-size design covers two common 19" tire widths
• Centered TR-4 valve stem fits most standard rim holes
• Inspect rims for burrs or sharp edges before mounting

How does the butyl material affect performance and maintenance?

Butyl rubber provides reliable air retention and resists environmental aging better than natural rubber blends, so you’ll spend less time reinflating and more time riding. The material tolerates a wide range of temperatures and keeps pressure stability that’s especially valuable on long trail days or multi-day trips.

• Low air permeability for consistent pressure over time
• Good resistance to temperature variation and ozone exposure
• Durable compared with cheaper, thinner tube constructions

How easy is installation and on-trail replacement?

The tube uses a centered TR-4 valve stem for straightforward alignment with common wheel designs and simple inflation or pressure checks. Carrying one of these as a spare simplifies field repairs because it fits two tire sizes and installs with standard tire levers and an inflation source.

• Centered TR-4 valve for quick mounting and pumping
• Compatible with standard tire levers and mini-pumps or compressors
• Dual-size fit reduces the number of spares needed

Who is this for: The Tusk Heavy Duty 2mm inner tube is aimed at offroad and dual-sport riders who want a stronger, longer-lasting replacement or a dependable spare that reduces pinch flats and punctures on trail rides. It’s a practical choice for mechanics, adventure riders, and anyone who prefers the simplicity and field-serviceability of inner tubes but needs extra toughness compared with stock options. Remember to confirm tire size and inspect rims before fitting to ensure safe, trouble-free service.

Product notes: Always match tube diameter and tire dimensions exactly, and check for rim damage or sharp edges that could compromise the tube during use.