AR-PRO (2-Pack) 3.00/3.50-14 90/100-14 Dirt Bike Inner

AR-PRO 3.00/3.50-14 inner tubes are a two-pack of heavy-duty, TR4-valved replacement tubes designed to fit 14" dirt and pit bike tires including 3.00-14, 3.50-14, 80/100-14 and 90/100-14 sizes.

These tubes are built from thick butyl rubber to improve puncture resistance and shock absorption for off-road riding. Sold as a pair, they include straight TR4 valve stems and cover a common range of 14-inch rim tire widths so you can replace worn or damaged tubes quickly and get back on the trail. The construction balances durability with flexibility so tubes install easily while resisting common trail hazards.

Will these tubes fit my dirt bike tire size and rim?

Yes—these inner tubes are sized to serve 14-inch rims with tire widths typically labeled 3.00, 3.50, 80/100-14 and 90/100-14. They are universal-style tubes intended for most small-displacement and pit bikes that use those dimension ranges.

• Fits 14" rims and tire sizes 3.00-14, 3.50-14, 80/100-14, 90/100-14
• Sold as a 2-pack for front and rear replacements or spares
• Works with many 125cc–160cc mini and pit bike models

How durable are these AR-PRO inner tubes for trail riding?

Manufactured from thick butyl rubber, the tubes resist punctures better than thin supermarket tubes and offer improved shock damping on rough surfaces. They also include a self-sealing behavior around small punctures to reduce the chance of rapid air loss during a ride.

• Thicker butyl compound for increased puncture resistance
• Self-sealing around small punctures for added ride security
• Heavy-duty construction suited for off-road impacts and vibration

What valve type is included and how does it affect installation?

These tubes use TR4 straight valve stems, a common valve style for many dirt and pit bike wheels. Straight valves pass easily through most 14" rim holes and are compatible with standard valve caps and pumps—inflate gently to seat the tire bead during installation.

• TR4 straight valve for straightforward pump access and sealing
• Compatible with standard valve caps, cores, and pumps
• Tip: inflate slightly before final seating to avoid tube twisting

Any tips or precautions when replacing these inner tubes?

Take care to avoid pinching the tube and never use sharp metal tools near the rubber during installation. Check the rim and tire for embedded debris, seat the bead evenly on both sides of the rim, and inflate incrementally to prevent twisting or uneven stress.

• Inspect rim and tire for thorns, nails, or sharp edges before fitting
• Inflate slightly to check alignment, then finish to recommended pressure
• Avoid sharp tools and keep hands or plastic levers between tire and tube

Who is this for: Riders of small-displacement dirt, pit and trail bikes who need dependable replacement inner tubes that balance ruggedness and fit flexibility. These AR-PRO tubes suit hobbyists, track-day riders, and anyone looking to carry spares for 14" tires on 125cc–160cc bikes and many mini-motocross models. They are a practical choice when you want rugged, easy-to-install tubes with common TR4 valves and broad compatibility across 14" tire sizes.