Ventum One Ultegra Di2
The draw: Straight-line speed
With its non-traditional tube shapes, the Ventum One Ultegra Di2 is one of the most exotic bikes on the market. The removal of the downtube may add to the aerodynamics of the bike, but the overall stiffness is compromised, negatively affecting handling. What the Ventum lacks in handling, though, it makes up for in pure speed. The speed of the bike clearly present itself in flat, windy situations. Being the heaviest of the tested bikes at 21.9 pounds (size large), the Ventum is best suited for flatter courses where aero efficiency is the No. 1 priority. One plus that long-course athletes will appreciate is the massive 1.4-liter integrated water bottle that is integrated into the top tube. With Zipp 60 clincher wheels, Di2 and an ISM saddle, the Ventum One Ultegra Di2 is ready to race right out of the box.