3.00-4 Heavy-Duty Inner Tubes with TR87 Bent Stem | For GY6 ATVs, Go Karts & Scooters [2-Pack]

Product Overview

Keep your high-performance machines and essential utility tools moving with the GOOFIT Professional 3.00-4 Inner Tube Set. This 2-pack bundle is the ultimate replacement solution for both recreational powersports and heavy-duty industrial tasks.

Whether you are maintaining a GY6 125cc/150cc ATV, a rugged Go Kart, or a hardworking Hand Truck, these tubes deliver superior air-tightness and elastic resistance. Featuring the TR87 Angled Valve Stem, you’ll never have to struggle with awkward pump angles again. Crafted from high-quality, high-density rubber, these tubes are built to absorb shocks on the trail and carry heavy loads in the warehouse.

Universal Fitment Guide

Optimized for vehicles with 4-inch rims and 3.00-4 tire sizes:

Specifications

• Tube Size: 3.00-4 (10" x 3")
• Valve Stem: TR87 Angled Bent Stem (with Protective Cap)
• Material: Premium Natural Rubber
• Quantity: 2 Pieces per Pack
• Rim Compatibility: Standard 4-Inch Hubs

Key Features

• Advanced Air-Tightness: 100% Brand New and crafted with precision to ensure zero slow-leaks. Our high-density rubber compound provides superior air retention compared to standard factory tubes.
• TR87 Angled Valve Stem: The 90-degree bent metal valve allows for easy access in tight wheel hubs. Say goodbye to the frustration of trying to connect a pump to a straight valve in a small rim.
• Superior Elastic Resistance: Engineered to handle the high torque of 125cc and 150cc engines. These tubes expand and contract efficiently under pressure, reducing the risk of heat-related blowouts during long rides.
• Heavy-Duty Shock Absorption: The thick rubber walls effectively dampen vibrations from uneven terrain, protecting your rims and providing a much smoother experience for the rider or operator.
• Rugged All-Terrain Durability: Resistant to ozone, aging, and extreme temperatures, making these tubes ideal for both high-speed asphalt cruising and muddy off-road trails.

Installation & Pro-Tip

Ready-to-Ride Check: To ensure your tubes arrived in perfect condition, slightly inflate them and submerge in water before mounting. If no bubbles appear, you're good to go!

Installation Secret: Always check the inside of your tire for "ghost thorns" or sharp debris before putting in the new tube. Applying a light dusting of talcum powder inside the tire will prevent the tube from sticking and chafing, significantly extending its lifespan.