Serpent have introduced a new version of the 2-speed gearbox housing for the Cobra GT8 and 977 EVO2. The new housing is thicker on the outside, so any deformation should no happen anymore on the high quality NSK bearing. To lower the extra weight rills are machined, which also add to the cooling and keeping same performance also over longer runs. The side-holes allow re-setting of the gearbox-shoes as needed. The housing are also used in the new car-kits and SL8 Xli 2-speed sets and parts.