A clincher tyre is a type of bicycle tyre that attaches to the rim of a wheel and encompasses the tube that holds air inside the tyre. The tyre attaches to the rim, and air is pumped into the tube, which then inflates inside the tyre. Clincher tyres have a tough bead of rubber around their edges, which "clinch" to the rim, hence the name. Clincher tyres are the most popular type of tyre in the world, and they are cheaper, easier, and less labour-intensive than comparable tubular tyres. They are also more convenient in case of a mishap, as they are easier to fix. Clincher tyres are the standard for bicycles and are the most common type of tyre found on road bikes.