YeYouC 2.75/3.00-21 Motorcycle Inner Tubes, TR4 Straight Valve — Pack of 2

Overview

Refresh your 21-inch front tires with YeYouC 2.75/3.00-21 inner tubes. These brand-new tubes are built from durable butyl rubber and paired with a TR4 straight valve for straightforward inflation. The pack includes two inner tubes and two valve caps, offering ready replacements for riders who want dependable performance on the road or trail.

Designed for everyday riding, these tubes emphasize steady air retention, reliable elasticity, and responsive damping. While not a medical claim, the materials and construction aim to deliver a smoother ride by absorbing minor shocks and maintaining tire pressure across varied conditions.

Why this matters

Durability and predictable performance matter when you’re out on the highway or exploring back roads. The thick butyl rubber used in these tubes tends to hold up under pressure, resisting wear and aging better than some alternatives. The TR4 straight valve is compatible with common pumps, making top-offs quick and convenient so you can stay on the move.

Key features

• Size versatility: fits 2.75/3.00-21" tires and a broad range of 80/90-21, 80/100-21, and 90/100-21 tires
• Premium material: heavy-duty butyl rubber for better air tightness, elasticity, and longevity
• Smoother ride: thicker rubber provides damping that helps absorb small bumps
• Air retention: designed to hold air steady for extended periods between checks
• Complete package: includes 2 inner tubes and 2 valve caps for easy replacement

Compatibility and usage

Ideal for front tires on a variety of motorcycles with 21" rims. Examples include popular models such as Honda CRF230/CRF250, Suzuki DRZ250/RM125, Kawasaki KX125/KLX150/KDX250, Yamaha TTR230/YZ125, and more. Always confirm your existing tube size to ensure a proper replacement.

Installation tips

• Before installing, submerge the tube in water to check for leaks—look for any bubbles indicating damage
• Install away from heat sources and ensure the stem sits straight to prevent pinching
• Inflate gradually to the tire’s recommended pressure, then recheck for leaks

Quality assurance

YeYouC stands by reliable, ready-to-use tubes. If you encounter any quality concerns, contact our support team for assistance. This 2-pack provides consistent replacements so you can ride with confidence.