Maxxis Tube 2.50/2.75-18 TR4 (CSV)

Meet the Maxxis Tube 2.50/2.75-18 TR4 (CSV) — a purpose-built inner tube designed for riders who demand dependable performance on 18-inch wheels. Sized for 2.50–2.75 inch tires, this tube delivers secure seating, consistent inflation, and solid puncture resistance when the trail gets rough.

Built for reliability on 18-inch rims

The Maxxis 2.50/2.75-18 TR4 (CSV) tube combines a robust construction with a TR4 (CSV) valve design to provide stable inflation and reliable sealing across varied riding conditions. This means fewer surprises on the trail, more confidence during aggressive climbs, and steadier handling when you push into corners or land after off-road drops.

Key features that set it apart

• Precise sizing for compatibility with 18×2.50–2.75 tires on 18-inch rims, reducing installation guesswork and ensuring a snug fit.
• TR4 (CSV) valve design tailored for reliable inflation and steady air retention in dynamic riding conditions.
• Rugged wall construction that withstands trail hazards—rocks, roots, and rough terrain—while maintaining consistent pressure.
• Minimized risk of pinch flats through thoughtful tube geometry that works in harmony with a broad range of Maxxis tires.
• Designed to pair seamlessly with Maxxis tire lines, delivering a cohesive, dependable performance package.

Who should consider this tube?

Ideal for enduro, trail, and dirt-bike riders with 18-inch wheels who want a trusted, purpose-built inner tube from a respected brand. It’s also a strong choice for vintage or restoration builds where exact sizing and reliable inflation are essential to preserving handling characteristics and ride feel.

Why this tube improves your ride

With a focus on reliable air retention and consistent seating, the Maxxis Tube 2.50/2.75-18 TR4 (CSV) helps you spend less time dealing with flats and more time enjoying the ride—whether you’re navigating technical sections, long gravel sections, or fast-fire singletrack.

Installation and care tips

For best results, inspect the rim for sharp edges before mounting, ensure the tube seats evenly, and inflate gradually to your normal riding pressure while checking for leaks. After rides, inspect the tube for wear or punctures and replace as needed. Store in a cool, dry place away from direct sunlight to extend its life.