Junak B20 (1960-65) vs GIMA Gima 125-3 and 125-3SA (1950-51) vs GIMA Gima 175-4 CR and 175 SA (1949-55)
Comparison technical specifications
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| Make: | Junak | GIMA | GIMA |
| Model: | B20 | Gima 125-3 and 125-3SA | Gima 175-4 CR and 175 SA |
| Years: | 1960-65 | 1950-51 | 1949-55 |
| Engine: | Four stroke, single cylinder, OHV | AMC engine, four stroke, single cylinder | AMC engine, four stroke, single cylinder |
| Capacity: | 349 cc / 21.3 cub. in. | 125 cc / 7.6 cu in | 175 cc / 10.7 cu in |
| Bore x Stroke: | 75 x 79 mm | 48 x 69 mm | 56 x 69 mm |
| Cooling: | Air/Oil cooled | Air cooled | Air cooled |
| Starting: | Kick-start | Kick | Kick |
| Max Power: | 14 kW / 19 hp @ 6000 rpm | 4.3 kW / 5.8 hp | 6.3 kW / 8.5 hp |
| Transmission: | Four-speed constant-mesh | 3 Speed | 4 Speed |
| Final Drive: | Chain | Chain | Chain |
| Front Suspension: | Fork with coil springs telescopic shock absorbers | Telescopic forks | Telescopic forks |
| Rear Suspension: | Independent rear wheel suspension on single wishbone , cooperating with 7- leaf spring positioned transversely; | Plunger, saddle springs | Plunger, saddle springs |
| Front Brakes: | Full hub width, of expander shoe type, hand operated | Drum, ∅150 mm | Drum |
| Rear Brakes: | Full hub width, of expander shoe type, foot operated | Drum, ∅150 mm | Drum |
| Wheels: | Wire type, with full width hubs made of light alloy, interchangeable (also with side-car wheel). Both wheels with quick-detachable spindles | Steel, laced wire spokes | Steel, laced wire spokes |
| Top Speed: | 75 km/h / 46.6 mph | 75 km/h / 46.6 mph | 95 km/h / 59 mph |