Sometimes tiny improvements make the most difference and you wonder why someone hasn't thought of them before. The Zipp VukaR2C Shifters are an example of such an 'ah-ha' design. Created with aerodynamics and ergonomics in mind, the VukaR2C Shifters could be the last piece to the puzzle of how to win your next time trial.Zipp's raison d'etre has long been to find the most aerodynamic solutions for things on a bicycle that are exposed to the wind. Time trial shift levers, in particular, have been through many different incarnations with companies trying to find the best fitting equipment. Zipp has cracked the code with their VukaR2C Shifters. You can position the levers at the natural angle for your hands, and once you make a shift, the levers will reset themselves by returning to center at the original angle which is the most ergonomically and aerodynamically sound position for you. That means you?ll never have your shift levers splayed opposite each other causing unnecessary drag at the tip of your aero bars.The R2C shifters are super light, and Zipp has designed them with an aerodynamic profile that's intended to save up to six seconds over a 40 kilometer course compared to standard levers. That is one reason why professional riders from the Kona Iron Man to the Tour de France use the Zipp VukaR2C Shifter Set.The Zipp VukaR2C Shifters are compatible only with Shimano/SRAM ten speed drive trains. They'll fit most aero bars on the market, though they are specifically designed for the Zipp VukaShift Extensions.