GDHSWJ 2-Pack 3.00-12 (80/100-12) Dirt Bike Inner Tubes — 12" TR4 Valve, Heavy-Duty 2mm Rubber

GDHSWJ 2-pack 3.00-12 (80/100-12) inner tubes are heavy-duty natural rubber replacement tubes with TR4 straight valve stems designed for 12" dirt-bike tires (3.0–3.5" width).

These inner tubes are built from thick, wear-resistant natural rubber and finished with a robust weld seam and a durable TR4 valve stem to deliver reliable airtightness during off-road riding. Each package contains two tubes sized to match common 12-inch tires used on 90–125cc minibikes and youth motocross models. With a focus on puncture resistance and shock absorption, they are intended as straightforward replacements for worn or damaged tubes.

Will these tubes fit my dirt bike or mini-moto?

They are made for 12" rims with tire widths roughly between 3.0" and 3.5" and are commonly compatible with many small-displacement bikes. Check your tire size and valve type to ensure compatibility before ordering.

• Size: 3.00-12 (80/100-12) — fits 12-inch tires 3.0"–3.5" wide.
• Valve: TR4 straight valve stem included.
• Common fits: Kawasaki KLX110 rear, Yamaha PW80 rear, Honda CRF50, XR70, TTR90, TTR100, Suzuki DRZ100, TAOTAO models.

How durable and puncture-resistant are these inner tubes?

Each tube uses 2mm-thick natural rubber and a reinforced weld seam to improve durability and lower the chance of leaks or sudden failures. The construction emphasizes resistance to abrasion and small punctures encountered during trail or track use.

• Material: high-quality natural rubber for flexibility and strength.
• Thickness: 2 mm heavy-duty wall for added longevity.
• Seam: firm weld seam to minimize air leaks.

How does the TR4 valve stem perform and maintain airtightness?

The TR4 straight valve is robust and designed to hold pressure reliably under vibration and rough terrain. It pairs with standard valve caps and pumps, making inflation and maintenance straightforward.

• Valve type: TR4 straight valve stem, compatible with standard pump heads.
• Airtightness: reinforced valve base to reduce leakage risk.
• Maintenance: easy to inspect and replace if damaged.

What should I expect during installation and everyday use?

Installation follows the same steps as other inner tubes: partially inflate, seat inside the tire, mount the tire on the rim, then fully inflate to recommended pressure. During use, the tube's shock-absorbing rubber helps smooth impacts and contributes to a more comfortable ride.

• Installation: pre-inflate slightly, position inside, then mount and finish inflation.
• Performance: improved shock absorption and impact resistance on rough surfaces.
• Service: sold as a 2-pack so you have a spare or can fit front and rear.

Who is this for: Riders, mechanics, and parents looking for a dependable, budget-friendly replacement inner tube for 12" dirt-bike tires will find these GDHSWJ tubes suitable. They are especially useful for owners of small-displacement off-road bikes and youth motocross machines needing a durable TR4-valve replacement with strong seam quality and increased puncture resistance. If you want easy installation, reliable airtightness, and two tubes in one purchase for backup or dual-wheel replacement, this 2-pack is intended for that purpose.