Kove has now set out the complete specification of the 650RR, and the finished numbers give its inline-four supersport a considerably more measured profile than the one created by its first appearance. The liquid-cooled 645cc engine has 16 valves and DOHC, producing 107bhp at 13,000rpm and 44lb.ft at 11,000rpm. Kerb weight is listed as 195kg, while Kove quotes a claimed top speed of 162mph.

That represents a sizeable step away from the figures associated with the motorcycle’s Milan debut in November 2025, when it was presented with 123bhp, 51lb.ft and a ready-to-ride weight below 185kg. The current output is lower than the quoted factory figures for the Honda CBR600RR and Kawasaki ZX-6R, at 119bhp and 115bhp respectively. Weight is a different story: at 195kg, the Kove is described as being broadly on par with both established rivals.

A revised chassis package

The four-cylinder engine measures 67.0mm by 45.7mm in bore and stroke and runs a 12.9:1 compression ratio. Its equipment includes a wet clutch, ride-by-wire, Standard, Sport and Custom modes, and a quickshifter that works in both directions. The twin-spar chassis makes the engine a stressed member and uses an aluminium subframe and swingarm. Wheelbase is 1,408mm, ground clearance 130mm and seat height 810mm.

The hardware beneath the bodywork has changed significantly from the 2025 motorcycle. Its semi-active electronic suspension has been replaced by mechanically adjustable units at both ends. The fork offers multi-stage damping adjustment, while the shock has hydraulic damping adjustment. Brembo brake calipers have also been dropped in favour of four-piston Taisko calipers at the front and a single-piston Taisko unit at the rear. The package still includes twin floating front discs, cornering ABS and traction control. Tyre sizes are 120/70-17 at the front and 180/55-17 at the rear.

A substantial electronics package

The aluminium tank holds 17 litres, and the motorcycle measures 2,040mm long, 715mm wide and 1,080mm high. A 6in TFT display runs the MotoPlay system and supports Bluetooth and Wi-Fi. Cameras at both ends act as a dashcam system, while also providing blind-spot monitoring and lane-change assistance.

Kove has shown the 650RR in black, white and WSBK colour schemes. Before the motorcycle can take part in racing, however, it will require homologation. At 107bhp and 195kg, this is no longer the unusually ambitious supersport suggested by the early figures. It still offers a substantial four-cylinder package, combining a two-way quickshifter and rider aids with camera-based technology that remains uncommon in the class.