Bicycle tyres are essential components that provide traction, support, and cushioning for a bike. They are typically made of rubber and come in various sizes and tread patterns, depending on the type of cycling. Common types include road bike tyres, which are smooth for speed, and mountain bike tyres, which have deeper treads for better grip on rough terrain. Tyres are inflated with air, which helps absorb shocks and improves comfort while riding. Proper tyre pressure is crucial for performance and safety, as under-inflated tyres can lead to increased rolling resistance and the risk of punctures. Regular maintenance, such as checking for wear and tear, ensures optimal performance.