AJS Model 18 500 (S, CS, Statesman) (1945-66) vs Triumph Trident T150 750 (1969)
Comparison technical specifications
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| Make: | AJS | Triumph |
| Model: | Model 18 500 (S, CS, Statesman) | Trident T150 750 |
| Years: | 1945-66 | 1969 |
| Engine: | Single cylinder, 2 valve per cylinder, pushrod OHV | Tansverse three cylinder, pushrod OHV, 2 valves per cylinder |
| Capacity: | 498 c / 30.4 cu in | 741 cc / 45.2 cu in |
| Bore x Stroke: | 82.5 x 93 mm | 67 x 70.5 mm |
| Compression ratio: | 6.90:1 (with compression plate) 7.24:1 (with no compression plate) | 9.0:1 |
| Cooling system: | Air cooled | Air cooled |
| Lubrication: | Dry sump | Dry sump |
| Induction: | Carburetor, type 89B/IAK | 3 x 26 mm Amal MK1 carburetors |
| Ignition: | Lucas magneto | Individual points & coils |
| Starting: | Kick | Kick |
| Max Power: | 20.9 kW / 28 hp @ 5600 rpm | 43.3 kW / 58 hp @ 7250 rpm |
| Transmission: | 4 Speed, Burman gearbox | 4 Speed, constant mesh |
| Front Suspension: | Hydraulic telescopic fork | Telescopic fork, hydraulic |
| Rear Suspension: | Swinging arm, dual shocks | Swingarm, dual shocks |
| Front Brakes: | Drum | 8 in TLS drum |
| Rear Brakes: | Drum | 7 in TLS drum |
| Front Tyre: | 3.25 -19 | 3.25-19, Dunlop K70 |
| Rear Tyre: | 34.25 -19 | 4.10-19, Dunlop K70 |
| Wheelbase: | 1400 mm / 55 in | 1429 mm / 56.3 in |
| Seat Height: | 760 mm / 30 in | 813 mm / 32 in |
| Dry-Weight: | Standard rigid frame: 15660 kg / 353 lbs Spring frame: 175 kg / 386 lbs Competition rigid frame: 137 kg / 303 lbs | 209 kg / 460 lbs |
| Fuel Capacity: | Rigid, Spring frame: 13 L / 4.23.4 US gal Competition: 10.2 L / 2.7 US gal | 19 L / 5.0 US gal / 4.2 Imp gal |