This bike is the direct evolution of previous year's bike and thus it barely differs in terms of parts and definitively adopted the new inverted forks (which were also used by Randy Mamola in the 1988 championship), as well as a banana swingarm and a 'one piece' bodywork which were designed by Massimo Tamburini.

[1] However, this design did not give an easy life to its riders as the bike was given the incorrect weight distribution which prevented it from freely unloading the power to the ground, the drivers frequently reporting that they found themselves in trouble because of it.

Aesthetically compared to the previous model, the C589 differs only for the long and thin additional slits at the end of the radiator vents and a slit behind and below the vents, while the Plexiglas on the front fairing is lower and less rounded.

The main reason for this was the lack of top-end speed the bike had compared to its competitors, incorrect weight distribution and poor power delivery.

The C589 was the inspiration for the company to release a road-legal model with a similar design called the Cagiva Mito in 1990.