Schwalbe Pro One HT 700 x 27C Handmade Bike Tyre - Evolution / V-guardSchwalbe Pro One HT 700 x 27C Handmade Bike Tyre Evolution V guard Handmade tubular. The holy grail of tire manufacturing and first choice in the professional peloton. The OneStar triple compound and the carcass made of a polyester cotton mixture ensure low rolling resistance and high penetration resistance. The diamond profile gives the driver grip even in difficult conditions. Now available in the new size 27 622. Size: 700 x 27c Tyre type: Handmade