What makes FFWD rims so special?
We use High-Tensile TC-35 carbon for the majority of the lay-up. This gives the rim a very high strength with sufficient stiffness to cope with hard application of the wheels. So, rather than use a stiffer, but more brittle carbon type, we chose durability over ultimate stiffness. In some lay-ups we add some higher modulus sheets to increase stiffness locally. All rims are molded with a process we call EcomTM (Equal Compression). This means that the rims are molded with a custom-made air bag that has the inner shape of the rim [1]. This makes sure that the pressure/compression is equal on the entire inner surface of the rim. Result is a practically void less rim section and a smooth wall on the inside of the rim. Without voids, the carbon sheets are completely fused into one system. The rim structure is much better and you can make the rim lighter and stronger. EcomTM also provides for a smooth inside (no wrinkles!) which is a great feature and not common for carbon rims. This is for i
