| General |
| Year | 2018 | 2026 |
| Make Model | Yamaha YZF 600 R6 | KTM 990 RC-R |
| Dimensions |
| Seat Height | 850 mm / 33.5 in | 845 mm / 33.3 in |
| Wheelbase | 1375 mm / 54.1 in | 1481 mm / 58.3 in |
| Ground Clearance | 130 mm / 5.1 in | 163 mm / 6.4 in |
| Height | 1095 mm / 43.1 in | - |
| Length | 2040 mm / 80.3 in | - |
| Width | 706 mm / 27.8 in | - |
| Weights & Capacities |
| Wet Weight (kg) | 190 | 195 |
| Fuel Capacity | 17.5 Litres / 4.5 US gal | 15.7 litres / 4.1 US gal |
| Wet Weight | 190 kg / 419 lbs | 195 kg 430 lbs |
| Performance |
| Max Power | 87.1 kW / 116.7 hp @ 14500 rpm | 128.2 hp / 94.3 kW @ 9500 rpm |
| Max Torque | 61.7 Nm / 45.5 lb-ft @ 10500 rpm | 103 Nm / 75.9 lb-ft @ 6750 rpm |
| Engine |
| Displacement | 599 cc / 36.5 cu-in | 947 cc / 57.8 cu-in |
| Engine Detail | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. | Four stroke, parallel twin cylinder, DOHC, 4 valve per cylinder |
| Bore x Stroke | 67 x 42.5 mm | 92.5 x 70.4 mm |
| Compression Ratio | 13.1;1 | 13.5:1 |
| Cooling System | Liquid cooled | Liquid cooled with water/oil heat exchanger |
| Emissions | - | EURO 5+ |
| Engine Management | - | Bosch EMS with RBW |
| Fuel Induction | Fuel injection with YCC-T and YCC-I | 46mm DKK Dellorto throttle body |
| Ignition | TCI: Transistor Controlled Ignition | - |
| Lubrication | Wet sump | Forced oil lubrication with 2 oil pumps |
| Starter | Electric | Electric |
| Drivetrain |
| Clutch | Multi-plate slipper clutch | PASC slipper clutch, cable operated |
| Final Drive | O-ring chain | Chain 520 X-ring, 16:43 |
| Primary Drive | - | 42:76 |
| Transmission / Drive | 6 Speed | 6-Speed |
| Chassis |
| Frame Type | Deltabox aluminium frame with revised rigidity balance | Chromium-Molybdenum-Steel frame using the engine as stressed element, powder coated |
| Suspension - Front | 43mm KYB telescopic forks | WP APEX 48, open cartridge, compression & rebound (30 Clicks), preload (3 clicks) |
| Suspension - Rear | KYB® piggyback shock, 4-way adjustable | WP APEX - Monoshock, compression high-speed (3 turns) low-speed (30 clicks), rebound (30 clicks), preload (10 turns) |
| Rake | 24° | - |
| Trail | 97mm / 3.8 in | - |
| Wheel Travel - Front | 120 mm / 4.7 in | 147 mm / 5.8 in |
| Wheel Travel - Rear | 120 mm / 4.7 in | 134 mm / 5.3 in |
| Wheels & Brakes |
| Brakes - Front | 2x 320mm discs 4 piston calipers | 2 x 320mm discs, radially mounted 4 piston caliper |
| Brakes - Rear | Single 220mm disc 1 piston caliper | Single 240 mm disc, single piston caliper |
| ABS | - | Standard |
| Tyres - Front | 120/70 ZR17 | 120/70-ZR 17 |
| Tyres - Rear | 180/55 ZR17 | 180/55-ZR 17 |
| Wheels | - | Cast aluminium |
| Wheels - Front | - | 3.5 x 17 |
| Wheels - Rear | - | 5.5 x 17 |