TECHNOLOGY
EXPERIMENT IS THE FOUNDATION OF ENGINEERING WORK
CARBON FIBERS
At the beginning of the production cycle we start with raw fibers and epoxy resin. This allows us to choose from any fiber and resin in the world. For C/DURO tubes we use cutting edge high modulus carbon fibers such as Torayca M40J.
400 GPa
We use carbon fibers that are 5.6x stiffer than aluminum and 1.9x stiffer than steel.
4500 MPa
The fibers are 8.6x stronger than Al 7075 T6 and 4.5x stronger than Columbus XCR steel
1.7 g/cm^3
Resulting composite is 4.6x lighter than steel and 1.6x lighter than aluminum.
AXIAL FIBER PLACEMENT
CompoTech, the mothership of C/DURO, has been developing its proprietary Advanced Winding Technology with axial fibre placement capabilities since 1995 to offer high performance optimisation for composite components.
Axial fibre placement allows the creation of composite parts with ideal fibre alignment for bending loads that are dominant in bike frames. Compared to conventional filament winding techniques, axial fibre placement can produce beams and tubes that are 10 to 15% stiffer and offer 50% greater strength in bending.
INTEGRATED LOOP TECHNOLOGY (ILT)
With high performance tubes, made in an automated process, we were looking for a similar way to make frame joints. We came up with the Integrated Loop Technology (ILT). Unlike conventional bonding, ILT transfers loads through continuous carbon fiber loops seamlessly built into the tube structure. This integration creates joints that match the performance of our tubes with exceptional strength, fatigue resistance, and long-term reliability.
COOPERATION WITH CZECH TECHNICAL UNIVERSITY (CTU)
Experiment is the foundation of engineering work.
This core idea at CompoTech has been strongly connected to the Faculty of Mechanical Engineering at CTU Prague since the very beginning in 1995. The development of ILT and C/DURO frames is no exception. We are working closely with scientists from CTU to build a deeper understanding of composite behavior, validate new concepts, and push the boundaries of bicycle frame design.
