Bimota DB1 (1985) vs KTM 620 LC4 Supercomp (1995) vs Yamaha XT 660X (2012)
Comparison technical specifications
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| Make: | Bimota | KTM | Yamaha |
| Model: | DB1 | 620 LC4 Supercomp | XT 660X |
| Years: | 1985 | 1995 | 2012 |
| Engine: | Four stroke, 90°“L”twin cylinder, SOHC, desmodromic 2 valves per cylinder | Four stroke, single cylinder, SOHC, 4 valves | Four stroke, single cylinder, SOHC, 4 valve |
| Capacity: | 748 cc / 45.6 cub in | 609 cc / 37.2 cu in | 659 cc/ 40.2 cu-in |
| Bore x Stroke: | 88 x 61.5 mm | 101 x 76 mm | 100 x 84 mm |
| Compression Ratio: | 9.3:1 | 10.4:1 | 10: 1 |
| Cooling System: | Air cooled | Liquid cooled | Liquid cooled |
| Induction: | 2x 36mm Dell' Orto PHF36 carbs | Dell'Orto PHM 40 SD | Fuel injection, 44 mm throttle body |
| Ignition: | Borsch | KDC-CDI | TCI |
| Starting: | Electric | Kick & electric | Electric |
| Max Power: | 46.6 kW / 62.5 hp @ 7500 rpm | 40.1 kW / 55 hp @ 7000 rpm | 33.8 kW / 48 hp @ 6000 rpm |
| Max Torque: | 61 Nm / 6.22 kgf-m / 45 lb-ft @ 6500 rpm | 60 Nm / 6.1 kgf-m / 44.3 lb-ft @ 5500 rpm | 58.4 Nm / 5.7 kgf-m @ 5250 rpm |
| Transmission: | 5 Speed | 5 Speed | 5 Speed |
| Final Drive: | Chain | Chain | Chain |
| Front Suspension: | 41.7mm / Telescopic M.1.R Marzocchi with 4-way rebound damping | WP Telescopic forks, compression and rebound adjustable | 43 mm Telescopic forks, |
| Rear Suspension: | Rising rate linkage with Marzocchi shocks with adjustable preload 11 position compression damping | Single chock, preload, compression and rebound adjustable | Oscillating arm standard Monocross. |
| Front Brakes: | 2x 280mm discs 1 piston calipers | Single 320 mm disc, 4 piston caliper | Single 320mm disc 4 piston caliper |
| Rear Brakes: | Single 260mm disc | Single 220 mm disc, 1 piston caliper | Single 245mm disc 1 piston caliper |
| Front Tyre: | 130/80 V16 | 100/90 - 19 | 120/700-17 |
| Rear Tyre: | 160/80 V18 | 140/80 - 17 | 160/60-17 |
| Dry Weight: | 160 kg / 352.7 lbs | 122 kg / 269 lbs | 173 kg / 318.4 lbs |
| Fuel Capacity: | 20 Litres / 5.3 US gal | 19 L / 2.4 US gal / 2.0 Imp gal | 15 Litres / 3.9 gal |