The PEAK 4 (EN D) replaces the PEAK 3 in Niviuk's range and fits squarely in the Performance Class, below the Competition Class Icepeak 8 (CCC) and above the Sports Class Artik 4 (EN C).
It's intended for pilots who are wanting to do competitions or big competitive XC but don't want the full-on concentration required to keep a high-maintenance hotship flying in cracking conditions.
It also offers a unique stepping stone as an 'entry level' 2-liner for pilots unfamiliar with the handling of this recent design innovation.