Triumph America (2007-08) vs Horex Regina 250 () vs Aprilia Tuono 660 Factory (2025)
Comparison technical specifications
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| Make: | Triumph | Horex | Aprilia |
| Model: | America | Regina 250 | Tuono 660 Factory |
| Years: | 2007-08 | 2025 | |
| Engine: | Four stroke, parallel twin cylinder, DOHC, 4 valves per cylinder | Four stroke, single cylinder. | Four stroke, forward facing parallel twin, DOHC with silent chain drive on the right side, four valves per cylinder |
| Capacity: | 865 mm / 52.8 cu in | 350 cc / 20.8 cu-in | 659 cc / 40.2 cu-in |
| Bore x Stroke: | 90 x 68 mm | 77 x 75 mm | 81 x 63.93 mm |
| Cooling System: | Air-cooled | Air cooled | Liquid cooled with radiator and water-oil heat exchanger |
| Compression Ratio: | 9.2:1 | 7.1;1 | 13.5: 1 |
| Induction: | Multipoint sequential electronic fuel injection with SAI | Carburetor | Airbox with front air intake. 2 x 52 mm throttle bodies, Ride-By-Wire management |
| Starting: | Electric | Kick | Electric |
| Max Power: | 40 kW / 54 hp @ 6750 rpm | 17,5 kW / 24 hp @ 6250 rpm | 105 hp / 73.5 kW @ 10500 rpm |
| Transmission: | 5 Speed | 4 Speed | 6 Speed, Aprilia Quick Shift (AQS) System up and down (available as optional accessory) |
| Final Drive: | Chain, X-ring | Chain | Chain, with drive ratio: 17/43 |
| Front Suspension: | 41 mm Fork | Hydraulic telescopic forks | 43mm ?hlins NIX 30 fork, spring preload, rebound and compression damping adjustable |
| Rear Suspension: | Chrome spring twin shocks with adjustable preload | Dual shocks | ?hlins STX rear shock, spring preload, rebound and compression damping adjustable |
| Front Brakes: | Single 310mm disc, 2 piston caliper, Nissen | 150mm Drum | 2x 320mm Brembo radial calipers with 4 horizontally opposed 32 mm pistons. Radial pump and metal braided brake hose |
| Rear Brakes: | Single 255mm disc, 2 piston caliper, Nissen | 150mm 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 Tyre: | 110/90 R18 Bridgestone | 3.50 -18 | 120/70 ZR 17 |
| Rear Tyre: | 170/80 R15 Bridgestone | 3.50 -18 | 180/55 ZR 17 |
| Seat Height: | 720 mm / 28.3 in | 760 mm / 29.9 in | 822 mm / 32.3 in |
| Fuel Capacity: | 19.3 Litres / 5.1 US gal / 4.2 Imp gal | 18 Litres / 4.6 US gal | 15 Litres / 4.0 US gal |