YUNSCM 2-PCS 27 inch Bike Tires 27×1 1/4 (32-630) Compatible

Product Overview

The YUNSCM 27-inch bicycle tires are engineered for urban cyclists who value reliability, comfort, and ease of maintenance. Designed specifically for 27×1 1/4 (32-630) wheels, this two-piece tire set delivers a smooth, efficient ride on paved city streets, bike paths, and flat roads. Whether you’re commuting to work, running errands, or enjoying weekend rides, these tires offer a dependable solution that balances performance with practicality. Crafted with high-content butyl rubber, they provide superior wear resistance and reduced odor compared to standard tire compounds—making them both durable and environmentally considerate. Each package includes everything needed for quick installation: two tires, two heavy-duty tubes, and two protective rim strips, eliminating the need to source components separately.

Key Features

• Folding Soft Wire Technology: Thanks to innovative soft wire construction, the tires arrive in a compact folded state, making storage and transport effortless. Once unrolled, the tire naturally returns to its intended shape and is ready for installation. It’s important to note that the steel wire bead may not fold completely upon arrival—this is normal and does not affect performance. To restore optimal form after removal from the wheel, gently roll or fold the bead without applying excessive force.
• Smooth Tread Design: The tread pattern is specifically optimized for urban environments. With minimal rolling resistance and enhanced grip on smooth surfaces, these tires ensure steady handling and efficient pedaling on city sidewalks, dedicated bike lanes, and well-maintained roadways.
• Premium Butyl Rubber Formula: These tires utilize a high-quality butyl rubber compound that outperforms conventional materials in longevity and durability. This advanced formulation resists wear more effectively, emits fewer unpleasant odors during use, and supports greener manufacturing processes—ideal for eco-conscious riders.
• Complete Installation Kit: Every purchase includes two 27×1 1/4 (32-630) tires, two Schrader valve tubes (32mm AV), and two durable rim strips. This comprehensive setup means you won’t need to buy additional parts before mounting your new tires.
• Practical Tire Lever Included: A branded tire lever accompanies the package, designed with user safety and convenience in mind. Featuring non-slip texturing, a groove aligned with the valve stem, and rounded edges, it simplifies installation while minimizing accidental cuts or damage to rims and tubes.

Technical Specifications

• Tire Size: 27 x 1 1/4 inches (also compatible with 27×1 1/4 and 27×1 1-4)
• ISO Diameter: 630 mm
• Maximum Inflation Pressure: 90 P.S.I.
• Material: High-content superior butyl rubber
• Package Includes: 2 tires, 2 heavy-duty inner tubes (Schrader 32mm AV), 2 rim strips, 1 tire lever

Benefits & Use Cases

These YUNSCM tires excel in everyday urban cycling scenarios. Their smooth tread reduces rolling resistance, allowing for faster and more efficient rides over short to medium distances—perfect for daily commutes, grocery trips, or leisurely weekend outings. The included heavy-duty tubes help prevent pinch flats when properly inflated, while the protective rim strips shield against abrasion and further enhance safety. Ideal for classic road bikes, hybrid bicycles, or touring models equipped with 27-inch wheels, this kit offers a hassle-free upgrade path. Riders can expect consistent performance without the complexity of sourcing individual components, thanks to the complete installation package.

Important Notes

Before purchasing, confirm your bike’s wheel size matches 27 x 1 1/4 (32-630). Upon receiving the product, inspect the steel wire bead at the tire lip for severe bending or signs of metal leakage—if either is present, do not install. During assembly, carefully check both the tire and rim for sharp edges, burrs, or other obstructions that could compromise the inner tube. If an inner tube fails shortly after installation, re-inspect the outer tire for damage such as broken steel wires, fabric tears, or rim lip deformities before replacing. Please be aware that the warranty does not cover damage resulting from off-road riding, overloading, racing, unauthorized modifications, or improper installation techniques. For special applications or custom requirements, contact the seller via Amazon Messages prior to ordering to ensure compatibility and support.