Zipps new vuka stealth breaks barriers for whats possible with an integrated aero system its sleek clean and almost endlessly adjustable the vuka stealth provides a stunning 1 920 fit options dial in your position for comfort and efficiency while optimizing your bodys wind drag what does that mean for on the bike performance pro triathlete jordan rapp put the vuka stealth on his bike and just six days later won the leadman epic 250 triathlon with its grueling 223 km cycling leg i n