The zipp 30 clincher 700c wheel zipp39s 30 clincher gets you where you39re going faster zipp39s quarter century of aero excellence went into designing a distinctive aluminium rim that saves an estimated 42 seconds over 40km compared with a standard box section rim in common wind conditions that39s aero efficiency you can take to the pain bank in races gran fondos gravel adventures and training rides the 30 clincher is more than just 39fast39 you39ll feel the 3039