Ariel 4F Square Four 600 (1932-36) vs Ariel HT5 500 (1956-59)
Comparison technical specifications
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| Make: | Ariel | Ariel |
| Model: | 4F Square Four 600 | HT5 500 |
| Years: | 1932-36 | 1956-59 |
| Engine: | Four stroke, parallel twin, OHC | Four stroke, single cylinder, OHV |
| Capacity: | 601 cc / 36.7 cu in | 497 cc / 30.3 cu in |
| Cooling System: | Air cooled | Air cooled |
| Exhaust: | 2 x 1-into-1 | 1-into-1 |
| Induction: | Carburetor | Carburetor |
| Starting: | Kick start | Kick start |
| Max Power: | 17 kW / 23 hp @ 5600 rpm (1939 model) | 18.6 kW / 25 hp @ 6000 rpm |
| Transmission: | 4-Speed, Burman | 4-Speed, Burman |
| Final Drive: | Chain | Chain |
| Front Suspension: | Ariel centre spring girders | Telescopic fork |
| Rear Suspension: | Rigid, spring loaded saddle | Swing arm, hydraulic dampers |
| Front Brakes: | Drum, 7 in | Drum |
| Rear Brakes: | Drum, 7 in | Drum |
| Wheels: | Steel, laced wire spokes | Steel, laced wire spokes |
| Front Rim: | 3.25 x 19 | 2.75 x 21 in |
| Rear Rim: | 3.25 x 19 | 4.00 x 19 in |
| Dry Weight: | 168 kg / 370 lbs | 132 kg / 291 lbs |