All FMB tires are hand made in France, and as cyclocross racers know, the French know a thing or two about tubulars. These FMB Grifo Medium tubular tires use an excellent all-around tread pattern that sits on a natural cotton casing to provide a tire that is supple and has low rolling resistance. Also, for an even lower rolling resistance, as well as better puncture protection, all FMB cyclocross tires use latex tubes. If you need one tire, or are just looking to try tubulars for the first time the Grifo is a great choiceFeatures: 48mm valve stem length, standard Superior sidewall coating factory installed