[citation needed] In 1986 the CBR400R was also known as Aero, Jellymould, as it shares its major design features with the rest of the early CBR600F and CBR1000F Hurricane family of motorcycles,[2] which include significantly rounded body shapes.

[citation needed] The CBR400RR in 1992 was referred to as the 'Baby Blade' replica, then in 1994 it was styled to closely look like the CBR900RR or Fireblade motorcycle.

[2] The CBR400RR preceded the 900 cc (55 cu in) Fireblade by four model years, going through one major rework (signified by a new "gull-arm" swingarm design).

[citation needed] The main rails are of a 'cranked' design, the seat support structure has a larger rail that was welded to the frame, the rear of the tail section now had a slight recurve to it, and the swingarm was given a gull-wing shape on one side to give ground clearance for the exhaust link pipe.

[citation needed] In 1985, Honda brought a CBR400F to the US for testing, on which Cycle World recorded a 0 to 1⁄4 mi (0.00 to 0.40 km) time of 13.63 seconds at 95.94 mph (154.40 km/h) and a top speed of 200km/h In 2013, Honda released the new twin-cylinder CBR400R along with its naked model, the CB400F (not to be confused with four-cylinder CB400 Super Four), and sport adventure model, the CB400X, which is based on the CBR500R, CB500F, and CB500X respectively.