ACT, Advanced Carbon Technology is made with a combination of T700 toray with Hi-Modulus M-Series. The frame is manufactured with "tube-to-tube" technology, by creating each individual tube separately which are then bonded into a one-piece frame. It is 30-50 grams lighter than conventional "full monocoque" frames, and feature a frame weight of approx 900 grams.
ACX, Advanced Carbon Technolgy uses a combination of T700, T800 & T1000 Toray with Hi-Modulus M-Series. It utilises semi-monocoque technology to create each individual top/headtube, which are then bonded with the down/seat tube to create a single front triangle. It takes advantages of both tube-to-tube and also monocoque constructions by being both stronger & lighter - resulting in a frame weight below 900grams.