[2] Following Harley-Davidson's divestment, the company was reported to be in negotiations with Canada's Bombardier Recreational Products for an injection of cash, but this did not happen and Alta Motors went out of business in late 2018.

[10] In 2017, the company also unveiled a prototype called the Redshift ST (for Street Tracker), which was pitched as a hybrid urban and flat track speedway machine.

[11] Due to debates regarding the equivalency between electric and combustion engines, Alta faced an uphill battle obtaining sanction to race in a major series, but the brand's products still showed up at a few established events.

[3] The Redshift MX made its professional debut in the Lites class of the 2016 Red Bull Straight Rhythm off-season tournament, advancing to the second round.

[14] However, equipment shipping issues[15] limited its participation to the Geneva Supercross' Duel Cup, a side attraction consisting of four riders competing in best-of-three, one-on-one playoffs.