Sunbeam Model 3 (1915-26) vs Sunbeam S8 500 (1949-56) vs Derbi Senda Terra 125 (2007-08) vs Derbi Mulhacén Café 125 (2008-) vs Derbi Senda R 125 4T (2004-07) vs Sunbeam B1 (1957-64)
Comparison technical specifications
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| Make: | Sunbeam | Sunbeam | Derbi | Derbi | Derbi | Sunbeam |
| Model: | Model 3 | S8 500 | Senda Terra 125 | Mulhacén Café 125 | Senda R 125 4T | B1 |
| Years: | 1915-26 | 1949-56 | 2007-08 | 2008- | 2004-07 | 1957-64 |
| Engine: | Single cylinder, side valve | Parallel twin, SOHC | Four stroke, single cylinder. OHC | Two stroke, single cylinder | Four stroke, single cylinder. OHC | Parallel twin cylinder, 4 stroke |
| Capacity: | 499 cc / 30.5 cu in | 487 cc / 29.7 cu in | 124 cc / 7.6 cu-in | 124.7 cc / 7.6 cu-in | 124 cc / 7.6 cu-in | 250 cc / 15.3 cu in |
| Bore x Stroke: | 85 x 88 mm | 70 x 63.5 mm | 56 x 49 mm | 56 x 50 mm | 56 x 49 mm | 56 x 50.6 mm |
| Cooling System: | Air cooled | Air/Oil cooled | Air cooled | Liquid cooled | Air cooled | Forced air cooled |
| Starting: | Kick | Kick | Electric | Electric | Electric | Electric |
| Transmission: | 3-Speed | 4-Speed | 5 Speed | 6 Speed | 5 Speed | Four speed |
| Final Drive: | Chain | Shaft | Chain | Chain | Chain | Enclosed chain in oil bath |
| Front Brakes: | Drum | Drum, leading shoe, 203 mm / 8" | Single 280mm disc | Single 280mm disc | Single 260mm disc | Drum, 127 mm diameter |
| Rear Brakes: | Drum | Drum, leading shoe, 203 mm / 8" | Single 220mm disc | Single 220mm disc | Single 220mm disc | Drum, 127 mm diameter |