Zonghshen has had the RX3 out for a number of years now and it’s sold well in various markets under local branding, most notably in the US by the California Scooter Co as the CSC RX3.
Zongshen also has a 450cc version which is also a single-cylinder, water-cooled, four-valve motor. The RX4 450 motor made its first appearance a year ago in the Zongshen NC450 Dakar Rally bike.
Like the RX3 the RX4 comes pretty well spec’d with upside-down forks, crash bars and full luggage all as stock and if it goes anything like the RX3 it will get along better than the specs suggest on paper.
In road-going form, the RX4 450cc single makes 40hp at 8000rpm, and 37Nm of torque at 7000rpm and weighs 204kg wet, including the crash bars and full luggage.