Yamaha TT 600 (1991-92) vs KTM 990 Super Duke (2011)
Comparison technical specifications
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| Make: | Yamaha | KTM |
| Model: | TT 600 | 990 Super Duke |
| Years: | 1991-92 | 2011 |
| Engine: | Four stroke, single cylinder, SOHC, 4 Valve | Four stroke, 75°V-twin cylinder, DOHC, 4 valves per cylinder |
| Capacity: | 595 cc / 36.5 cu-in | 999.8 cc / 60.9 cu-in |
| Bore x Stroke: | 95 x 84 mm | 101 x 62.4mm |
| Cooling System: | Air cooled | Liquid cooling, |
| Compression Ratio: | 8.5:1 | 11.5:1 |
| Lubrication: | Dry sump | Dry-sump lubrication with 2 rotor pumps |
| Induction: | 27mm Dual stage Teikei Y27PVX1 carburetor | Electronic fuel injection / electric |
| Ignition: | CDI | Contactless, controlled, fully electronic ignition system with digital ignition timing adjustment |
| Starting: | Kick | Electric |
| Max Power: | 45 hp / 34 kW @ 6500 rpm | 88 kW / 120 hp @ 9000 rpm |
| Max Torque: | 50 Nm / 4.7 kgf-m @ 5500 rpm | 100 Nm @ 7000 rpm |
| Transmission: | 5 Speed | 6 Speed |
| Final Drive: | Chain | Chain, X-Ring 5/8 x 5/16" |
| Front Suspension: | 43mm Telescopic forks | 48mm WP Upside down adjustable |
| Rear Suspension: | Alloy swinging arm single shock with adjustable dampers. | WP shock, fully adjustable |
| Front Brakes: | Single 310mm disc | 2x 320mm discs 4 piston calipers |
| Rear Brakes: | Single 270mm disc | Single 240mm disc 1 piston caliper |
| Front Tyre: | 90/90-21 | 120/70 ZR17 |
| Rear Tyre: | 130/90-18 | 180/55 ZR17 |
| Seat Height: | 935 mm / 36.8 in | 855 mm / 33.6 in |
| Dry Weight: | 138 kg / 304.2 lbs | 186 kg / 410 lbs |
| Fuel Capacity: | 10 Litres / 2.6 US gal | 18.5 Litres / 4.8 gal |