Schwalbe Stelvios come in many colors right here on TE, but only in 700 x 23. BTW, its a great tire, high pressure, light, rolls really well, very flat resistant. I use them cuz they are the best racing tire in both a 24" and 700cc size. Mimi, do understand that if you go to a wider tire you will have more rolling resistance and it is likely to impact your speed. I do prefer wider tires on my commuter, but love the 23 stelvios for fast club riding. My husband bought the yellow striped michelins, and they tore on his first ride! I have yet to flat with my stelvios.