The 2004 year model introduces a shape of the fairing which contributed to the victory in the 2003 year WGP 125cc class championship race. It provides both excellent aerodynamics and protection.
The front brake caliper features the radial mount type, which improves controllability during braking.
The front suspension stroke has been increased from current 100mm to 103mm, leading to improved absorption characteristics of innermost strokes. At the same time, settings have been made to meet the radial mount brake caliper for enhanced stability in steering.
Data logger systems, developed by the HRC from years of experience in racing technology are provided as optional parts. In addition, detonation counters (optional) to detect engine's defective combustion can help carburetor settings.