KTM RC 125 (2018-19) vs Yamaha XJ 650 Turbo (1982-84) vs Triumph Daytona 750 (1992) vs Kawasaki KDX 125R (2001-03)
Comparison technical specifications
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| Make: | KTM | Yamaha | Triumph | Kawasaki |
| Model: | RC 125 | XJ 650 Turbo | Daytona 750 | KDX 125R |
| Years: | 2018-19 | 1982-84 | 1992 | 2001-03 |
| Engine: | Four stroke, single cylinder. DOHC with finger followers, 4 Valve | Four stroke transverse four cylinder. turbocharged. DOHC, 2 valves per cylinder, | Four stroke, transverse three cylinder, DOHC, 4 valve per cylinder | Two stroke, single cylinder, with KIPS |
| Capacity: | 124.7 cc / 7.6 cu-in | 653 cc / 39.8 cu-in | 749 cc / 45.7 cu in | 124 cc / 7.6 cu-in |
| Bore x Stroke: | 58 x 47.2 mm | 63 х 52.4 mm | 76 x 55 mm | 56 х 50.6 mm |
| Cooling System: | Liquid Cooled | Air-cooled | Liquid cooled | Liquid cooled |
| Compression Ratio: | 14.5:1 | 8.2:1 | 11.0:1 | 8,0:1 |
| Induction: | Bosch Injection | 4x 30mm pressurized Mikuni CVs carburetors | 3 x 36 mm BST CV carburetors | Keihin PE28 carburetor |
| Ignition: | Contactless, controlled, fully electronic ignition system with digital ignition timing adjustment | CDI | TCI (Transistor Controlled Ignition) | CDI |
| Starting: | Electric | Electric | Electric | Electric |
| Max Power: | 15.hp / 10.9 kW @ 9500 rpm | 90 hp / 67.1 kW @ 9000 rpm　 | 74 kW / 97 hp @ 8750 rpm | 33.2 hp / 24.7 kW @ 9600 rpm |
| Max Torque: | 11.8 Nm / 8 lb•ft @ 8000 rpm | 8.33 kgf-m @ 7000 rpm | 66 Nm / 6.7 kgf-m / 48.7 lb-ft @ 8500 rpm | 21.8 Nm / 16 lb-ft @ 8600 rpm |
| Clutch: | Wet multi-disc clutch / mechanically operated | Wet, multi-plate | Wet, cable operated | Multi-disc clutch in oil bath |
| Transmission: | 6 Speed | 5 Speed | 6 Speed | 6 Speed |
| Final Drive: | Chain 5/8 x 1/4” X‑Ring | Shaft | Chain | Chain |
| Front Suspension: | WP Suspension Up Side Down | 36mm Showa 140mm wheel travel, adjustments for air pressure | 43 mm Telescopic forks, preload, compression and rebound damping adjustment. | Kayaba 48mm telescopic hydraulic fork reversed KAYABA 48mm, double adjustment + adjustable spring preload, prepared |
| Rear Suspension: | WP Monoshock | Dual Showa dampers, 79mm wheel travel, adjustments for air pressure, rebound damping | Tri-link monoshock adjustable preload and rebound damping | Uni-Trak adjustable for preload |
| Front Brakes: | Single 300mm disc | 2x 266mm discs | 2 x 296 mm Discs, 4 piston calipers | Single 260mm disc |
| Rear Brakes: | Single 230mm disc | Single 200mm drum | Single 255mm disc, 2 piston caliper | Single 220mm disc |
| Front Tyre: | 110/70 -17 | 3.25-19 | 120/70 VR17 | 70/100-21 |
| Rear Tyre: | 150/60 –17 | 120/90 V18 | 160/60 VR18 | 4.10-18 |
| Dry Weight: | 135 kg / 297.6 lbs | 235 kg / 518 lbs | 218 kg / 480.6 lbs | 98 kg / 216 lbs |
| Fuel Capacity: | 10 Liters / 2.6 US gal | 19.5 Litres / 5.0 US gal | 25 Litres / 6.6 US gal / 5.4 Imp gal | 9.0 Litres / 2.3 US gal |