The chicane 33 tubular cyclocross 28 tyre from challenge helps you drill the straightaways with confidence knowing you can that the chicane will carry you through whatever the approaching corner has to offer whether its sand snow dust or mud the chicane has been designed to be an ultimate fast tyre with superior cornering traction this tyre is a handmade tubular version which is made using superpoly casing for rims 15 19mm wide available in blackbrown in 28 x 33c