AR-PRO Heavy-Duty Motorcycle Inner Tubes 2.50/3.00-18 2-Pack — 3mm Butyl, TR4 Valve

AR-PRO 2.50/3.00-18 inner tubes are heavy-duty 3mm butyl replacement tubes with reinforced TR4 valve stems, sold in a 2-pack for reliable off-road and dual-sport performance.

These inner tubes are built for riders who demand durability and consistent air retention in challenging conditions. Constructed from thick 3mm butyl rubber and featuring a sturdy TR4 straight metal valve stem, the tubes are sized to fit common 18" tire widths (2.50-18, 2.75-18, 3.00-18) and metric designations (80/90-18, 80/100-18, 90/90-18). The seamless, reinforced design helps resist punctures, absorbs impacts, and maintains inflation across a wide range of temperatures—making them suited for dirt bikes, enduro, dual-sport, trail and off-road motorcycles. Sold as a pair, they provide a ready spare for quick roadside replacements or an all-season fit for daily riding.

How do these tubes handle rough terrain?

The 3mm butyl compound increases puncture resistance and helps the tube hold shape under stress, so it endures trail hazards better than thinner tubes. Reinforced seams and a metal TR4 valve stem reduce the chance of sudden failure from impacts or vibration.

• 3mm butyl rubber for stronger puncture and abrasion resistance
• Seamless construction to limit weak points
• Reinforced TR4 straight metal valve stem resists bending and leakage
• Shock-absorbing thickness for improved bump damping

Will these fit my motorcycle tire sizes?

Yes—these tubes are sized to fit 2.50-18, 2.75-18 and 3.00-18 tires and are compatible with common metric tire markings such as 80/90-18, 80/100-18 and 90/90-18. They are intended for 18" wheels used on many dirt bikes, dual-sport and enduro machines.

• Designed for 18" wheel diameters
• Compatible with 2.50–3.00 tire widths and equivalent metric sizes
• Works with off-road and dual-sport tire profiles
• Sold as a 2-pack for front and rear coverage or spare storage

How easy is installation and maintenance?

Installation follows standard inner-tube fitting procedures and the robust TR4 valve stem simplifies inflation and pressure checks. The butyl material resists ambient temperature shifts, so inflation stays more consistent through seasonal changes.

• Standard tube mounting—install with proper tire bead seating
• TR4 valve stem for straightforward pumping and sealing
• Heat- and cold-resistant butyl for stable pressure retention
• Replaceable pair reduces downtime; keep one as a spare

What riding styles benefit most from these tubes?

These heavy-duty tubes are optimized for riders who face rough trails, rocky sections, or daily commuting where reliability matters. They prioritize durability and comfort rather than ultra-lightweight racing setups.

• Trail and enduro riders seeking puncture resistance
• Dual-sport commuters who need dependable daily performance
• Off-road enthusiasts who want shock-absorbing tube thickness
• Mechanics and touring riders who prefer carrying a spare tube

Who is this for: The AR-PRO 2-pack of 2.50/3.00-18 inner tubes is aimed at dirt bike, enduro, dual-sport and off-road riders who need rugged, dependable replacements that withstand impacts and temperature changes. Choose these tubes if you want thicker 3mm butyl construction, a reinforced TR4 valve for secure inflation, and a pair that fits widely used 18" tire sizes. They’re a practical upgrade for regular trail use, long-distance dual-sport rides, or anyone who keeps spares for quick roadside repairs.