PaoWin 2.50/2.75-17 Heavy-Duty Butyl Inner Tubes 2-Pack — TR4 Straight Valve, Puncture-Resistant

PaoWin 2.50/2.75-17 TR4 heavy-duty butyl inner tubes are replacement front/rear tubes sold in a two-pack, designed to resist punctures and absorb shocks for 2.50–2.75-17 and compatible 70/100-17 tires.

These inner tubes are built from thicker butyl rubber and fitted with TR4 straight valve stems for a secure seal and improved durability on off-road bikes, pit bikes and motocross machines. They come as a set of two and fit a range of 17-inch rim widths commonly used on small dirt bikes. The combination of added wall thickness and a reinforced valve seat reduces the risk of flats and helps maintain consistent air retention under rough riding conditions.

Are these inner tubes the right size for my 2.50 or 2.75-17 tires?

Yes — the tubes are made to fit standard 2.50-17 and 2.75-17 tires and are also compatible with equivalent 17-inch sizes such as 60/100-17, 60/90-17, 70/100-17 and 70/90-17. Measure your tire sidewall markings or consult your owner manual to confirm fit before installation.

• Fits 2.50-17 and 2.75-17 tire widths
• Compatible with 60/100-17, 60/90-17, 70/100-17, 70/90-17 sizes
• Designed for 17-inch rims commonly found on pit bikes and small dirt bikes

How do these heavy-duty tubes improve durability on rough trails?

The tubes are roughly 50% thicker than standard inner tubes, which increases resistance to punctures and pinch flats when riding over rocks, roots, and other trail debris. Thicker butyl rubber also stretches less under load, improving stability and reducing the chance of sudden air loss.

• 50% thicker wall construction for puncture resistance
• Butyl compound for reliable air retention and tear resistance
• Better handling of repeated impacts and trail abuse

What advantages does the TR4 straight valve stem offer?

The rubber-coated TR4 straight valve stem creates a tighter seat against the rim, which helps keep out dust and sand while minimizing valve leaks. The reinforced rubber stem base lowers the risk of valve tearing during inflation or bumpy rides, extending service life compared with cheaper valve designs.

• TR4 straight valve for secure rim seating
• Rubber-coated stem prevents dust and sand ingress
• Robust valve seat reduces tear and leak risk

What comes in the package and what should I expect when installing?

You receive two inner tubes in the 2.50/2.75-17 size, each pre-equipped with a TR4 straight valve stem. Installation is the same as any tube change: deflate and remove the tire, inspect the rim and tire for damage, slightly inflate the new tube to give it shape, fit it into the tire, and then fully mount and inflate to the recommended pressure.

• Package includes two 2.50/2.75-17 inner tubes with TR4 valves
• Recommended: inspect tire/rim, slightly inflate tube before mounting
• Follow your bike or tire manufacturer’s pressure recommendations

Who is this for: Riders who use pit bikes, small motocross machines or off-road motorcycles and want a straightforward, heavy-duty spare or replacement tube. These PaoWin inner tubes suit weekend trail riders, track-day enthusiasts, and anyone seeking strengthened puncture resistance and a reliable TR4 valve seal without changing tire choice or rim size.