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The motorcycle is powered by a split-single two-stroke engine (two pistons sharing a single combustion chamber). It was marketed in the United States by Sears as the "Allstate 250" or "Twingle", with the model number SR 250, and sold primarily via the Sears catalog. [1] It was a common "first motorcycle" for many riders. [2]
The 1953-1969 Puch 250 SGS (sold in the United States by Sears as the "Allstate 250" or "Twingle") used with an improved system of one connecting rod hinged on the back of the other. These engines typically use the forward piston to control both intake and exhaust ports, with the interesting result that the carburettor is at the front of the ...
Allstate was an American brand of vehicles marketed by Sears. Scooters , motorcycles, and cars were sourced from several manufacturers and re-badged with the Sears "Allstate" brand. Piaggio and Cushman were major suppliers of scooters, while Puch and Gilera supplied mopeds and motorcycles, and cars at different times were supplied by the ...
Puch motorcycle 250 SGS. Puch is remembered in the US for importing the SGS 250, the first and last split-single seen there. Marketed by Sears in their catalogue as the "Twingle", [4] it was styled much like a BMW of the 1950s and 60s. The layout had been popular in Europe between the wars because it improved scavenging, and hence fuel ...
The Allstate is an American automobile that was offered for sale through Sears, Roebuck and Co. during the 1952 and 1953 model years. It was a rebadged version of the Henry J , an automobile manufactured by the Kaiser-Frazer company from 1950 through 1954.
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A "twingle" is a four-stroke twin-cylinder engine with an altered firing order designed to give power pulses similar to a single-cylinder four-stroke engine. Inline twins with a 360° crankpin offset or flat-twins can be easily converted into twingles by firing both of the cylinders at the same time and installing a camshaft or camshafts that ...
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