This clever road disc combo employs the nimble and crosswind-impervious i9.35 as your front wheel and the all-around aero i9.45 in the rear. What results is a wheelset that deftly hones the best traits of each rim - quick, responsive handling meets slippery and stable. If you want to opt for a single wheelset and you ride in rolling or mountainous terrain, it’s time to clean excess gear out of your garage and mount up the i9.35/i9.45 combo.