roadtire

A roadtire is a pneumatic tire intended for bicycles used on paved roads. Roadtires are optimized for low rolling resistance, high speeds, and consistent grip on smooth asphalt, and they contrast with off-road tires that have wider, knobbier treads.

Most modern road tires are clinchers with a bead that hooks onto the rim, and they often come tubeless-ready. Tubular tires are sewn to a fabric casing and are used in some racing setups. Some tires include puncture protection belts or thicker sidewalls to resist flats. The tread is generally smooth; some models feature slight siping or minimal tread for wet conditions.

Sizing and fit: Road tires use ISO/ETRTO bead seat diameter of 622 mm (commonly labeled 700c) with widths usually 23–32 mm, though 28–38 mm models are common in endurance and gravel-adjacent lines. Tire width and rim width together determine contact patch and ride feel. Inflation pressures vary by rider weight and tire width; typical ranges are about 80–130 psi (5.5–9 bar) for narrow tires, lower pressures for wider tires and tubeless setups.

Performance notes: Narrow tires favor low rolling resistance and speed on dry pavement; wider tires offer better comfort and grip and are favored in wet conditions. All-weather road tires may feature more pronounced tread. The choice depends on rider weight, riding style, and road conditions.

Maintenance and lifespan: Road tires wear with mileage and can be punctured by sharp objects. Inspect for cuts, sidewall bulges, or tread wear and replace when performance degrades. Tubeless tires can self-seal some punctures but still require inspection and proper sealant.