Sunbeam Model 90 in Movies
It could reach a top speed of 145 km/h / 90 mph
The engine was a Air cooled cooled Single cylinder, four stroke, SOHV. A 80 x 98 mm stroke result in a displacement of just 493 cc / 30.1 cu in. The engine features a 7.0:1 (Optional 7.5 or 9.0:1) compression ratio.
Stopping was achieved via Drum in the front and a Drum in the rear. The front suspension was a Druid-pattern, girder forks while the rear was equiped with a Rigid, spring loaded saddle The Model 90 is fitted with a 11.4 L / 2.5 Imp gal / 3.0 US gal fuel tank. The bike weighs just 143 kg / 315 lbs Racing: 141.5 / 312 lbd. The wheelbase is 1359 mm / 53.5" long.