Speed and comfort, united in a tyre. the perfect choice for the city speedsters, single-speed bikes and fitness bikes. double puncture protection, good grip and light-weight design. the roughened slick tread speeds along on tarmac. certified for e-bikes to 25 km/h----6 E6---7512774(550-569)1/25/25 ----10:5/27:ari 72221(15:5:9/29/22:ari------10:9/30/22:ari122222(20:1/11 ?