Ariel VH 500 Red Hunter (1932-59) vs AJP PR7 Adventure (2019-) vs AJS R7 Track Racer (1930) vs AJS E95 Porcupine (1954)
Comparison technical specifications
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| Make: | Ariel | AJP | AJS | AJS |
| Model: | VH 500 Red Hunter | PR7 Adventure | R7 Track Racer | E95 Porcupine |
| Years: | 1932-59 | 2019- | 1930 | 1954 |
| Engine: | Four stroke, stroke, single cylinder, OHV, 2-valves | Single cylinder, SWM, DOHC, 4 valve | Single cylinder, OHC | Twin cylinder inclined at 45°, aluminium alloy, DOHC |
| Capacity: | 497 cc / 30.3 cu in | 600.3 cc / 36.6 cu in | 350 cc / 21.4 cub in | 497 cc / 30.3 in |
| Cooling System: | Air cooled | Liquid cooled | Air cooled | Air cooled |
| Exhaust: | High-set dual port exhaust | Two into one | 1-into-1 | 2-into-2 |
| Transmission: | 4-Speed | 6-Speed | Close ratio gearbox | 4-Speed, close ratio |
| Final Drive: | Chain | Chain | Chain | Chain |
| Front Suspension: | Grider front forks | 48 mm ZF Sachs USD fork, fully adjustable | Girder fork | AMC Teledraulic telescopic fork |
| Rear Suspension: | Rigid, springloaded saddle (after 1954: dual shocks) | AJP progressive linkage system, fully adjustable Sachs piggyback shock | Ridged, spring loaded saddle | Dual AMC "Jam-pot" shocks |