This is the Challenge Forte Open 700C Clincher Folding Road Tyre. This tyre features the same structure as the Challenge Criterium. The Challenge Forte Open has a more aggressive tread designed for wet or slippery conditions. A road racing tyre.
Open tubular differ from traditional clinchers for the construction. The Tyre is produced just like a tubular and uses the same materials and production process. Instead of being sewed with an inner tube inside, at the end of the process beads are made by folding the casing around Aramid fibres threads. For this reason an open tubular gives very similar ride feel of that of a tubular, mainly if a latex inner tube is used. Mounting an open tubular on a wheel is the same as mounting a standard clincher but with the advantage of riding a much more comfortable and performing tyre.