This remarkable ‘Mk IV-R Commando 900’ Norton motorcycle is a striking and entirely customized classic sports bike, conceived by Jets Forever Motorcycles as a head-turning ‘Monterey Class’ race bike.

Throughout its 124-year history, Norton hasn’t been afraid to innovate when it comes to its motorcycles. There was the “featherbed” frame that the company patented in 1949, which was renowned for its ...