New-Line's HOBBY Radiator - 120mm x 430mm x 40mm 1.4 kg.
With the advent of the OK classes, which require less cooling and are always looking for ways to reduce the overall weight of the kart, the model created as an additional radiator for the KZ class, called the Hobby, turns out to be a perfect main radiator for the fledgling non-shifter classes, obviously during the times of year without extreme temperatures (generally less than 20° C ambient temperature).
