Sunbeam Model 10 Sprint
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| Sunbeam Model 10 Sprint | |
| Manufacturer | |
|---|---|
| Production | 1931 |
| Engine | Single cylinder, OHV |
| Compression ratio | 6.0:1 |
| Horsepower | 2.6 kW / 3.50 hp |
| Ignition | EIC Magneto |
| Transmission | 3-Speed |
| Frame | Single front down tube |
| Suspension | Front: Druid forks Rear: Rigid, spring loaded saddle |
| Brakes | Front: Drum, internal expanding Rear: Drum, internal expanding |
| Wheelbase | 1283 mm / 50.5" |
| Weight | 105 kg / 231 lbs (dry), |
| Oil Capacity | 1.1 L / 2.0 Imp pt / 2.4 US pt |
| Fuel Capacity | 9.1 L / 2.0 Imp gal / 2.4 US gal |
| Manuals | Service Manual |
Engine[edit | edit source]
The engine was a Air cooled cooled Single cylinder, OHV. The engine featured a 6.0:1 compression ratio.
Chassis[edit | edit source]
Stopping was achieved via Drum, internal expanding in the front and a Drum, internal expanding in the rear. The front suspension was a Druid forks while the rear was equipped with a Rigid, spring loaded saddle. The Model 10 Sprint was fitted with a 9.1 L / 2.0 Imp gal / 2.4 US gal fuel tank. The bike weighed just 105 kg / 231 lbs. The wheelbase was 1283 mm / 50.5" long.
Photos[edit | edit source]
Overview[edit | edit source]
| Make Model. | Sunbeam Model 10 |
|---|---|
| Year | 1931 |
| Engine Type | Single cylinder, OHV |
| Displacement | 344 cc / 21.0 cu in |
| Bore X Stroke | 74 80 mm |
| Cooling System | Air cooled |
| Compression | 6.0:1 |
| Lubrication | Wet sump |
| Induction | AMAC carburetor |
| Exhaust | Single |
| Ignition | EIC Magneto |
| Starting | Kick |
| Power | 2.6 kW / 3.50 hp |
| Transmission | 3-Speed |
| Gear Ratios | 1st 15.2 / 2nd 9.1 / 3rd 5.5:1 (Options 14.3, 8.6 and 5.15 or 1605, 9.7 and 5.8) |
| Final Drive | Chain |
| Frame | Single front down tube |
| Front Suspension | Druid forks |
| Rear Suspension | Rigid, spring loaded saddle |
| Front Brakes | Drum, internal expanding |
| Rear Brakes | Drum, internal expanding |
| Wheels | Steel, laced wire spokes |
| Tires, Front And B=rear | 3.00 x 25" Dunlop |
| Wheelbase | 1283 mm / 50.5" |
| Dimensions | Length: 2007 mm / 79.0" Width: 813 mm / 32.0" |
| Saddle Height | 711 mm / 28.0" |
| Dry Weight | 105 kg / 231 lbs |
| Fuel Capacity | 9.1 L / 2.0 Imp gal / 2.4 US gal |
| Oil Capacity | 1.1 L / 2.0 Imp pt / 2.4 US pt |
| Source | Sunbeamsidevalve.com |