C4 Carbon Road Bike 57ct


  • C4 Full Carbon Monocoque 1991
  • Marco Bonfanti, Italy
  • Pro Team Polti Bike
  • Frame 57 center-top seat tube
  • 55cm center-center top tube
  • Standover height 82cm
  • Dura Ace 7400 groupset
  • Cinelli Grammo Titanium stem 120mm
  • Titanium Water Bottle Cages
  • Flite Titanium rails Saddle 165 grams!
  • Fir Net 97 clincher rims
  • Dura Ace 8 speed 13/14/15/17/19/21/23/26
  • Weight under 8 kg full bike!!
  • All in Original and near mint condition


C4 Carbon Road Bike From Italy.

C4 was founded in 1986 in order to create and build carbon fiber projects by engineer Marco Bonfanti.
Bonfanti was the first frame builder using NJCNo Joint Construction, which enables the building of hollow structures without joints: The first Monocoque Frame.

In 1987 the Bianchi racing team rode the time trial stages of the Giro d ‘Italia on bikes designed and built by C4. These were a world preview of special features such as full cable integration and the monocoque carbon technique.
In the year 1994 C4 was the primary sponsor of the professional cycling Team Polti, with Gianni Bugno and Ivan Gotti.

Also Marco Pantani used C4 frames for his time trials.

This C4 road bike is from 1991 and built with the pro’s choice Dura Ace 7400 groupset.

In all original and near mint condition.

This is a real Collectors Item and a rare piece of cycling history.

Feel free to get in touch with us!

Worldwide Shipment for Bikes:

The Netherlands: 20 euro
Europe Zone 1: 80 euro
Europe Zone 2: 120 euro
Worldwide: 185 euro

Additional information

Weight 11 kg