components: Challenge Grifo 33: A serious opponent
For ten years now, Challenge tires have been enriching the cyclocross market. The Italian brand's most famous model is undoubtedly the Grifo, a tire on which world championship titles have already been won. The Challenge Grifo comes in two sizes, the Grifo 32 and the Grifo 33, as well as in two color options: white with a black sidewall and black with… read more