Backfire ESC enclosure is special designed to work on Backfire Electric Longboard, which match the screw holes in the deck of G2/G2S/G2T and Ranger X1. The power button is installed and included.
Kindly reminder before purchase:
2017 G2 had different power button from any newer models.
G2S, G2T, 2019 G2 and Ranger X1 are using the same style ESC enclosure with same power button.