How does KirkLee top a 20-inch bike? Build a 650c bike Shimano Di2 Dura Ace and Lightweight wheels. This bike was built for speed coming in at 12 lbs. Special attention was paid to allow for easy shifting while racing utilizing Di2 button shifters on the handlebar top. It’s always a fun challenge to build unique bikes like this one.
This Dragonfly Pro, outfitted with Calfee’s proprietary internal Di2 solution and a full-carbon BarStem, was built for a cyclist in Texas. We hope to squeeze it into our booth at NAHBS. This bicycle, with it numerous innovations and striking finish, is a stirring example of our carbon craftsmanship.
Calfee Dragonfly featuring our full carbon BarStem, proprietary seatpost housed Di2 battery and internal cable routing, carbon PressFit 30 bottom bracket shell, and a striking translucent, root beer finish weighs 13.5 pounds and costs $12,500.
Our lightest and most technically advanced frame; we use high modulus carbon fiber in all the tubes (66 msi) as well as the lug areas. Previously, a frame built with all high modulus fiber would be too brittle. We incorporated Boron fiber into the three main tubes to add some toughness and compressive stiffness. Boron is an attractive reinforcement because the resulting composite combines superior tensile, compressive and flexural strengths, high modulus, and low density in one system. Combined with the super high tensile stiffness of the carbon, the result is a frame material with the highest stiffness-to-weight ratio on the market.