Aprilia RS 660 vs Kawasaki Ninja ZX-6R: specs compared
Side-by-side specs of the Aprilia RS 660 (2027-present) and the Kawasaki Ninja ZX-6R (2024-2025), using the latest model year of each.
Key differences
- Power: Aprilia RS 660 103.6 hp, Kawasaki Ninja ZX-6R 122 hp.
- Torque: Aprilia RS 660 70 Nm, Kawasaki Ninja ZX-6R 69 Nm.
- Weight: Aprilia RS 660 183 kg, Kawasaki Ninja ZX-6R 198 kg.
Key figures
Power hp
- Aprilia RS 660 (2027-present)103.6
- Kawasaki Ninja ZX-6R (2024-2025)122 (best)
Torque Nm
- Aprilia RS 660 (2027-present)70 (best)
- Kawasaki Ninja ZX-6R (2024-2025)69
Weight kg
- Aprilia RS 660 (2027-present)183 (best)
- Kawasaki Ninja ZX-6R (2024-2025)198
Full specs
| Specification |  2027-present · Phillip Island Tribute Remove |  2024-2025 Remove |
|---|---|---|
| Category | Supersport | Supersport |
| Years | 2027-present | 2024-2025 |
| Engine | two-cylinder online , 4 strokes, set at 270° injection, Ø 52 mm Cooling system : liquid 2 ACT 4 valves per cylinder 659 cc 105 ch (103.60 hp) to 10,400 rpm 7.10 mkg (70 Nm) to 8,400 rpm | 636cc liquid-cooled inline-four, DOHC, 16-valve, Euro5-compliant |
| Cylinders | 2 | 4 |
| Displacement | 659 cc | 636 cc |
| Power | 103.6 hp @ 10,400 rpm | 122 hp @ 13,000 rpmBest |
| Torque | 70 Nm @ 8,400 rpmBest | 69 Nm @ 11,000 rpm |
| Transmission | 6 stage gearbox , manual - standard shifter Secondary by chain | 6-speed manual, chain final drive |
| Final drive | chain | chain |
| Weight | 183 kg (wet)Best | 198 kg (wet) |
| Seat height | 820 mm | 830 mm |
| Fuel capacity | 15 L | 17 LBest |
| Front suspension | Reverse-action telescopic hydraulic fork, Ø 41 mm / Kayaba (KYB) , Wheel travel : 120 mm (4.72 in) Preload and rebound adjustment | 41mm inverted Showa SFF-BP fork, adjustable preload and rebound damping |
| Rear suspension | Single shock absorber / Kayaba (KYB) , Wheel travel : 130 mm (5.12 in) Preload and rebound adjustment | UNI-TRAK single shock, twin-sided aluminum swingarm, adjustable preload and rebound damping |
| Brake system | Not available | KIBS ABS, standard (no non-ABS trim offered for this relaunch) |
| Front brake | 2 Brembo discs Ø 320 mm (12.6 in), radial mounting, 4-piston caliper | Dual 310mm semi-floating stainless discs, Nissin radial-mount monobloc 4-piston calipers |
| Rear brake | 1 Brembo disc Ø 220 mm (8.66 in), 2-piston caliper | Single 220mm petal disc, single-piston caliper |
| Front tire | 120/70-17 | 120/70 ZR17 (Pirelli Diablo Rosso IV) |
| Rear tire | 180/55-17 | 180/55 ZR17 (Pirelli Diablo Rosso IV) |
| Quickshifter | Not available | Yes |
| Launch price | Not available | USD 11,299 (US) |