Engine new sports 249c.c. O.H.V. single port, made for us by J.A.P., with the head and port specially polished. The whole engine tuned by our Competition Department to show really efficient results. The lubrication is by sight feed mechanical pump. The Carburettor is by Amal. We test and urge the use of CASTROL XL.
Frame similar frame to the FLYING CLOUD excepting we use Sports Tubular Forks with shock absorbers and steering damper.
Tyres are 25 inches x 3 inches heavy Dunlop.
Chains Coventry ½ x 0.305 inch
Gearbox Pivot fixing four speed, multiplate foot control, complete with kick starter. Hand control optional. Use CASTROLEASE for sweet gear changing.
Tanks Both petrol and oil tanks are of cold pressed welded steel, petrol tank being chrome-plated. with two-level push-on tap. Capacity as FLYING CLOUD
Lighting & ignition B.T.H. 6 volt Mag-generator, with large head lamp ; patent battery carrier. Electric horn.
Finished out in black enamel on antirust base.
The chrome tank is lined in gold and fitted with oversize knee grips.
Full set of Abingdon tools in special container.
The overall length, wheelbase, etc., is exactly similar to FLYING CLOUD, and we recommend our new bend low-level exhaust pipe for this engine, which at no point drops below the frame members and gives less back pressure than an up-swept pipe. Which, however, can be fitted as optional.
Petroflex oil and petrol pipes are standard on the above model.
Gear Ratios 5.72, 7.33, 9.39, 15.64;
Petrol Consumption (approx.), 85-90 m.p.g.
Extras Hughes Pillion Equipment including folding Footrests. 15/16 ;
Smiths Speedometer (Trip) 50/-,
Terry Saddle. 7/6: All Weather Leg shields 10/6,
25 x 3.25 Tyres 7/6.
Code Word "SPORT"
Source: ok-supreme-muv archive