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PUCH (1903 – 1987)
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The official racers with their characteristic half red, half chrome fuel tank, continued to be upgraded and used to race until the Six Days of 1971, progressively competing against newer and more modern models with more advanced engines and frames.
Fortunately the change in direction did cause the total closure of the Racing Department, which continued for many years to produce winning machines, but the overall involvement became considerably less.
This was counterbalanced by an increased production and sales to the public sector of a stunning replica of the victorious racing motorcycles, towards the end of the season.
Appearance wise the only difference could be found in the fuel tank, where the same silver square shaped one was fitted used in the road factory models, the side stand replaced the more stable centre stand and the mass produced engines, although still very close to the original sand cast racing versions were obviously toned down for public use.
Some models were equipped with rubber knee guards on the side of the fuel tank, this was not a particularly significant addition as this kind of accessory was quite common on road motorcycles.
Initially only two models were proposed: the 125cc and the 175cc, whose principal characteristics can be summarized as follows:

Type M C 125 GS Model:
Two stroke engine, pre-cast in aluminum, single vertical cylinder mounted at an angle with cross ignition distribution, cylinder head fan-shaped with fins and spacers. Bore mm. 55 stroke mm. 52, engine capacity cc. 123,50. Compression ratio 13:1. Power 15 hp at 8.500 rpm. Bing carburetor, type 26.
Type M C 175 GS Model:
Two stroke engine, pre-cast in aluminum, single vertical cylinder mounted at an angle with cross ignition distribution, cylinder head fan-shaped with fins and spacers. Bore mm. 62 stroke mm. 52, engine capacity cc. 169. Compression ratio 13:1. Power 18,5 hp at 8.000 rpm. Bing carburetor.
Both models had the same wiring system with Bosch flywheel, multi disc wet clutch, gear driven primary transmission, chain driven secondary transmission and a six speed gearbox.
The frame, very similar to the official models', was a double cradle with upper box spar, without holes to lighten the frame, and a triangular structure housing the large air filter box, protected by a black vinyl apron.
Front Ceriani forks, rear swing arm with and Girling shocks. Puch  160 mm in diameter drum brakes. Steel rims and pneumatic tyres front 3.00 x 21 and rear 4.00 x 18.


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