Principia was created based on an enthusiasm for the triathlon, but it was the road bikes that catalyzed the explosive growth of Principia. In the early 1990s, the majority of road bikes were made of steel, and professional riders continued to swear by thin steel frames with chrome-plated details. At some point, steel had to give its domestic position away. More and more people gradually realized that you would get a much more efficient bike with a light and rigid frame made of large, round aluminum, which sums up the character traits of Principia.
The aluminum alloy from which the innovative Principia bike frames were welded proved to be excellent at withstanding the dynamic influences during cycling. The bike frames made of 7020 alloy were the key to some successful years for Principia.
Seat tube c-c: 57cm
Seat tube c-t: 63cm
Top tube c-c: 57cm
Head tube: 174mm
Rear spacing: 130mm
Seatpost diameter: 27.2mm
Bottom bracket thread: ISO
Headset: 1″ threaded
Wheel size: 700c
Weight: Frame 1540gr
