Man, Sunbeam. I would have never guessed that...:ummm:
Congrats to the mystery solver....:clapping:
One of those distinctive designs, like a Scott
Flying Squirrel
I recall there was a similar design by a Swedish co. on a VOLVO bottom-end for a longitudinal crank 4 cyl. awhile ago. It was done by a group of Indian bike enthusiasts.
Originally the Wiking Dakota 4, a UK-based guy made it:
Technical Specifications: Classic
FRAME: Cradle, triple braced. Seamless tubular steel.
RAKE: 31degrees.
REAR SUSPENSION: Koni Dial-A-Ride.
FRONT FORK: Telescopic.
FRONT BRAKE: Single 320mm disc. Hydraulic activated.
REAR BRAKE: Internal expanding.
FINAL DRIVE: Cardan shaft.
TYRES: Avon Roadrunner 90-16. (Dunlop Touring Elite optional)
OVERALL LENGTH: 2510mm
OVERALL WIDTH: 500mm
OVERALL HEIGHT: 1195mm
WHEELBASE: 1740mm
GROUND CLEARANCE: 113mm.
WEIGHT: 325 kg (Full tanks)
FUEL CAPACITY: 18 litres. 2.5 litres reserve.
RANGE: 243 Km / 150 Miles
Fuel consumption at 90 Km hr: 7.4 litres per 100Km.
MOTOR: Inline 4 cylinder, 4-stroke.
COOLING: Air.
DISPLACEMENT: 1845cc (112 cubic inches)
VALVE SYSTEM: O.H.V. 2 per cylinder.
BORE & STROKE: 85.7mm x 80mm
COMPRESSION RATIO: 7.5:1
MAXIMUM R.P.M: 4400
FUEL SUPPLY: Single Weber via electric pump.
IGNITION: Distributor (standard models). Electronic ignition optional.
STARTING: Electric
POWER: 74 B.H.P.
TORQUE: 117ft. Lb
http://www.indian-uk.com/