Kawasaki KR1 (1989) vs Horex Regina 250 () vs Kawasaki Z 900RS (2021) vs Yamaha YZF 1000 R1 (2020)
Comparison technical specifications
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| Make: | Kawasaki | Horex | Kawasaki | Yamaha |
| Model: | KR1 | Regina 250 | Z 900RS | YZF 1000 R1 |
| Years: | 1989 | 2021 | 2020 | |
| Engine: | Ttwo stroke, parallel twin cylinder | Four stroke, single cylinder. | Four stroke, transverse four cylinder, DOHC, 4 valve per cylinder | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder |
| Capacity: | 249 cc / 15.2 cu-in | 350 cc / 20.8 cu-in | 948 cc / 57.8 cu-in | 998 cc / 60.9 cu-in |
| Bore x Stroke: | 56.0 x 50.6 mm | 77 x 75 mm | 73.4 x 56.0 mm | 79.0 x 50.9 mm |
| Cooling System: | Liquid cooled | Air cooled | Liquid cooled | Liquid cooled |
| Compression Ratio: | 7.4:1 | 7.1;1 | 11.8:1 | 13.0:1 |
| Induction: | 2x 28mm Keihin PWK carburetor | Carburetor | DFI with 36mm Keihin throttle bodies | Fuel Injection with YCC-T and YCC-I |
| Ignition: | Capacitor discharge | 6 Volt | TCBI with electronic advance | TCI: Transistor Controlled Ignition |
| Starting: | Kick | Kick | Electric | Electric |
| Max Power: | 55 hp / 41.0 kW @ 10500 rpm | 17,5 kW / 24 hp @ 6250 rpm | 110 hp / 82 kW @ 8500rpm | 147.1 kW / 197 hp @ 13500 rpm |
| Transmission: | 6 Speed | 4 Speed | 6 Speed | 6-speed wet multiplate assist and slipper clutch |
| Final Drive: | Chain | Chain | Sealed chain | "O" ring chain |
| Front Suspension: | 41mm stanchions, air assisted telescopic fork with unstopped preload adjustment | Hydraulic telescopic forks | 41mm inverted fork with compression and rebound damping and spring preload adjustability | 43mm KYB inverted fork, fully adjustable |
| Rear Suspension: | Bottom Link Uni-Trak with air adjustable gas shock, unstopped preload, and four-way rebound damping | Dual shocks | Horizontal Back-link, gas-charged shock with rebound and preload adjustability | KYB single shock, fully adjustable |
| Front Brakes: | 2x discs 4 piston calipers | 150mm Drum | 2x 300 mm semi-floating discs, dual opposed 4 piston calipers | 2x 320mm hydraulic disc, Brake Control System and ABS |
| Rear Brakes: | Single disc 2 piston caliper | 150mm Drum | Single 250mm petal disc, 1 piston caliper | Single 220mm hydraulic disc, Brake Control System and ABS |
| Front Tyre: | 100/70 VR17 | 3.50 -18 | 120/70ZR17M/C (58W) | 120/70ZR17 |
| Rear Tyre: | 130/60 VR18 | 3.50 -18 | 180/55ZR17M/C (73W) | 190/55ZR17 |
| Seat Height: | 855 mm / 29.7 in | 760 mm / 29.9 in | 820 mm / 32.2 in | 861 mm / 33.9 in |
| Fuel Capacity: | 16 Litres / 4.2 US gal | 18 Litres / 4.6 US gal | 17 Litres / 4.5 US gal | 17 Liters / 4.5 US gal |