GDHSWJ 110/90-19 (4.50x19) Heavy-Duty Butyl Inner Tubes — 2-Pack, 3mm Thick TR4 Valve

GDHSWJ 110/90-19 (4.50 x 19) heavy-duty inner tubes are 3mm thick butyl rubber tubes with vulcanized TR4 straight valve stems sold as a 2-piece set for off-road and dirt bikes.

These inner tubes are engineered to replace or upgrade the tubes in motorcycles and dirt bikes that use 19-inch rims and tire widths around 110–120 mm. Built from thicker butyl rubber and made with a seamless construction, they prioritize airtight performance, puncture resistance and reliable valve integration so you can spend less time fixing flats and more time riding.

How do these tubes improve durability on rough trails?

The 3mm butyl compound is thicker than typical passenger-bike tubes, which increases resistance to punctures, pinches and abrasion from rocks or roots. Seamless molding reduces weak points where leaks commonly start, and the reinforced valve base prevents splitting under load or during mounting.

• 3mm butyl rubber for higher puncture and abrasion resistance
• Seamless construction minimizes air leaks and stress points
• Valve base reinforcement reduces twisting and splitting

Will these fit my motorcycle and my pump?

They are sized for tires with a nominal width around 110 mm (4.50 in) to about 120 mm (4.72 in) and a 19-inch rim, matching common dirt bike and off-road tire specs. Each tube uses a TR4 straight valve stem, which works with most hand and floor pumps and accepts standard valve caps and cores.

• Compatible with 110/90-19 tire sizing and similar 4.50 x 19 tires
• TR4 valve stem fits standard pump heads and Schrader-compatible fittings
• Sold as two inner tubes — ideal for front and rear replacements

How easy is installation and maintenance?

These tubes are designed for straightforward mounting: the seamless, evenly molded body reduces pinches during installation, and the vulcanized TR4 valve is securely bonded to the tube for consistent alignment. Routine maintenance is the same as any tube: inspect before mounting, use proper tire levers and check pressure regularly.

• Even molding helps prevent pinched tubes during installation
• Vulcanized TR4 valve stem stays seated and aligned
• Regular pressure checks and visual inspections extend tube life

What performance trade-offs should I expect?

Thicker butyl increases durability but also marginally raises rolling weight compared with thinner tubes, a common trade-off for off-road reliability. These tubes prioritize puncture resistance and longevity for trail and motocross use rather than achieving the lowest possible weight for racing applications.

• Higher puncture resistance versus lighter racing-specific tubes
• Slight increase in rotational mass due to 3mm construction
• Designed for practical, durable performance over ultralight speed gains

Who is this for: Riders who need reliable, heavier-duty inner tubes for dirt bikes, motocross machines or off-road motorcycles with 19-inch rims. If you want a stronger tube that resists punctures and valve-base splitting and accepts standard pumps, the GDHSWJ 110/90-19 3mm butyl tubes (2-pack) are a practical, cost-effective choice for regular trail use and weekend racing.