The Vuka Shift AXS 90 from Zipp is more than just an aero extension - it is a complete shifting system. Think of it as an extremely efficient solution for housing the brain of your SRAM RED or Force eTap AXS time trial or triathlon bike. The Vuka Shift AXS 90 accommodates your aero handlebar extensions, shift control, and head unit in a single, clean package. This approach addresses a problem that has arisen in the age of electronic shifting. With this seamless solution, the time for system integration has arrived. The extensions themselves feature the proven Vuka Evo shape with a 90 mm rise. The Vuka Shift AXS 90 is compatible with over 90 percent of the integrated aero handlebar systems currently available on the market.