Jawa 350 (1970) vs Aprilia Tuono 660 (2021)
Comparison technical specifications
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| Make: | Jawa | Aprilia |
| Model: | 350 | Tuono 660 |
| Years: | 1970 | 2021 |
| Engine: | Two stroke, twin cylinder | Four stroke, forward facing parallel twin, DOHC with silent chain drive on the right side, four valves per cylinder |
| Capacity: | 343.5 cc / 20.96 cu in | 659 cc / 40.2 cu-in |
| Bore x Stroke: | 58 x 65 mm | 81 x 63.93 mm |
| Compression Ratio: | 8.1:1 | 13.5: 1 |
| Cooling System: | Air cooled | Liquid cooled with radiator and water-oil heat exchanger |
| Induction: | Carburetor, port control | Airbox with front air intake. 2 x 48 mm throttle bodies, Ride-By-Wire management |
| Starting: | Kick | Electric |
| Max Power: | 13.1 kW / 18 hp @ 5000 rpm | 100 hp / 73.5 kW @ 10,500 rpm |
| Transmission: | 4 Speed | 6 Speed, Aprilia Quick Shift (AQS) System up and down (available as optional accessory) |
| Final Drive: | Chain | Chain, with drive ratio: 17/43 |
| Front Suspension: | Hydraulic telescopic forks, | Kayaba 41 mm USD fork with top out spring, Aluminum pins to fasten radial calipers. Rebound and spring preload adjustment on a single stanchion |
| Rear Suspension: | Twin shock | Asymmetrical aluminum swingarm. Single shock and top out spring with rebound and spring pre-load adjustment |
| Front Brakes: | Expanding drum | 2x 320mm Brembo radial calipers with 4 horizontally opposed 32 mm pistons. Radial pump and metal braided brake hose |
| Rear Brakes: | Expanding drum | Single 220mm disc; Brembo caliper with two 34 mm separate pistons. Master cylinder with separate reservoir and metal braided hose Multimap ABS (Cornering ABS available as optional accessory) |
| Front Wheel: | 3.25-16" | 3.5 x17 |
| Rear Wheel: | 3.50-16" | 5.5 x17 |
| Wet Weight: | 155 kg / 342 lbs | 183 kg / 403.4 lbs |
| Fuel Capacity: | 13.5 L / 3.57 US gal | 15 Litres / 3.9 US gal |