TUSK 3mm Severe Duty Motorcycle Inner Tube 110/100x18–120/100x18 — Reinforced Butyl, TR‑4 Valve

The TUSK Severe Duty 3 mm inner tube is a reinforced butyl-rubber replacement sized 110‑120/100×18 built to resist pinch flats, abrasions, and rough-terrain damage.

Engineered for off-road and heavy-use riders, this inner tube increases durability without sacrificing a proper fit. The thicker 3 mm wall and quality butyl compound help the tube hold air reliably while standing up to rocks, roots, and trail hazards that commonly puncture thinner tubes. A centered TR‑4 valve stem makes inflation and pressure checks straightforward on compatible rims.

What makes this inner tube stronger than a standard tube?

The extra 3 mm wall thickness adds a protective layer that reduces the chance of pinch flats and cuts from sharp objects. Reinforced butyl rubber provides consistent air retention and resists stretching under load, extending service life versus typical thin-walled tubes.

• 3 mm wall for enhanced puncture and abrasion resistance
• Durable butyl compound for steady pressure retention
• Thicker construction lowers pinch-flat risk on rough terrain

Will this tube fit my 110–120/100×18 wheel and rim setup?

This TUSK tube is manufactured to match the 110‑120/100×18 size range, giving a snug fit when that specification is required by your tire or rim. Always match the tube size range to the tire designation and confirm rim compatibility before installation to ensure proper seating and valve alignment.

• Exact 110‑120/100×18 sizing for precise fit
• Centered TR‑4 valve for common rim hole placement
• Check rim bed for sharp edges and proper diameter before mounting

How easy is installation and maintenance with the TR‑4 valve?

The centered TR‑4 valve stem simplifies inflation and pressure checks on most motorcycle rims designed for this valve type. Regular inspections and careful mounting help prevent pinch damage during installation and make roadside repairs quicker when needed.

• Centered TR‑4 valve for straightforward pump or gauge access
• Standard valve sizing works with most motorcycle tire tools and caps
• Simple to inspect, patch, or replace if a roadside repair is required

How should I prepare the rim and tire before fitting this tube?

Preparing the rim and tire reduces the chance of premature failure. Remove debris, smooth any burrs or sharp edges on the rim, and verify the tire bead is seated correctly to avoid pinch points that could damage the thicker tube during inflation.

• Clean rim bed and remove foreign objects before installation
• File or cover sharp spoke ends and burrs that could cut the tube
• Partially inflate tube for easier seating and to prevent pinching

Who is this for: The TUSK Severe Duty 3 mm inner tube is aimed at enduro, trail, and dual-sport riders, or anyone who needs a tougher spare for rocky, rooty, or otherwise demanding terrain. It’s a dependable replacement when stock tubes don’t offer enough protection, and it works well as a robust spare for long rides where repair opportunities are limited. Always verify tire and rim compatibility and follow safe mounting practices to get the most out of this reinforced inner tube.