Triumph Rocket 3 GT (2024) vs Jawa 638 (1994)
Comparison technical specifications
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| Make: | Triumph | Jawa |
| Model: | Rocket 3 GT | 638 |
| Years: | 2024 | 1994 |
| Engine: | Four stroke, inline 3-cylinder, DOHC | Two stroke, parallel twin |
| Capacity: | 2458 cc / 150 cu-in | 343.4 cc / 21.0 cu in |
| Bore x Stroke: | 110.2 x 85.9 mm | 58 x 65 mm |
| Cooling System: | Liquid cooled | Air cooled |
| Compression Ratio: | 10.8:1 | 9.8:1 |
| Induction: | Ride-by-Wire, fuel injected | Jikov 28-29 CE horizontal carburetor, slide type |
| Ignition: | Digital inductive type via electronic engine management | Magneto VAPE A67 contactless |
| Starting: | Electric | Kick |
| Max Power: | 134 kW / 180 hp @ 7000 rpm | 17.2 kW / 23.5 hp @ 5250 rpm |
| Max Torque: | 225 Nm / 166 ft-lb @ 4000 rpm | 31.4 Nm / 3.2 kgf-m / 23.2 ft.lb @ 4750 rpm |
| Clutch: | Wet, multi-plate hydraulically operated, torque assist | Multi disc in oil bath |
| Transmission: | 6 Speed | 4 Speed |
| Final Drive: | Shaft, bevel box | Chain |
| Frame: | Full aluminum frame | Tubular, double, closed |
| Front Suspension: | Showa 47mm upside-down 1+1 cartridge front forks, compression and rebound adjustement | Hydraulic telescopic fork, steel spiral springs |
| Front Wheel Travel: | 120 mm / 4.7 in | 150 mm / 5.9 in |
| Rear Suspension: | Fully adjustable Showa piggyback reservoir RSU with remote hydraulic preload adjustement | Swingarm, hydraulic telescopic in suspension units, spiral springs |
| Rear Wheel Travel: | 107 mm / 4.2 in | 80 mm / 3.1 in |
| Front Brakes: | 2x 320 mm discs with Brembo M4.30 Stylema 4-piston radial monobloc calipers | Ø265 mm Disc, hydraulic control |
| Rear Brakes: | Single 300mm disc, Brembo M4.32 4-piston monobloc caliper | Ø165 mm Drum, mechanical control |
| Front Wheel: | 17 x 3.5 in cast aluminium | 2.15 B x 18" |
| Rear Tyre: | 240/50 R16 V | 2.15 B x 18" |
| Dimensions: | Length: 2365 mm / 93.1 in Width: 920 mm / 36 in (with handlebars) Height: 1183 mm / 46.6 in (with mirrors | Length: 2100 mm / 82.7 in Width: 780 mm / 30.7 in Height: 1160 mm / 45.7 in |
| Wheelbase: | 1677 mm / 66 in | 1370 mm / 53.9 in |
| Seat Height: | 750 mm / 29.5 in | 820 mm / 32.3 in |
| Wet Weight: | 320kg / 705 lbs | 162 kg / 357 lbs |
| Fuel Capacity: | 18 Litres / 4.76 US gal | 17 L / 4.5 US gal |