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The motorcycle which we deal, is a Hopi Aspes 125 of 1973 belonging to a private collection of Sicily.
The Aspes was a small company of Gallarate that exploiting the right time for the 125, he decided to enter the market with Apache model, set up on the cross and regularity with engine Maico.
The main objective was to achieve an engine is just as a matter of prestige, both for better performance, was born a first series of prototype engines made using the crankshaft of kart Komet, considered very reliable, and that it was an engine super framework , Cylinders and pistons of TD Yamaha 250 and broadcasts dell'Aermacchi Aletta Oro, given the encouraging results obtained over the counter test, the first prototype sfiorava winds horses against the mast fifteen dell'Aletta Red taken as a reference, which came to those results only with processing more thrusts. it moved to industrialisation entrusted to the firm expert advice in the implementation of engines for the kart, so he founded a new company that began operating in 1972 the "ASCO" (acronym of the names ASpes COnsiglio), whose engines went to equip the series HOPI for the cross and regularity and YUMA for models from the street.
Special features of the first series of those engines was the enormous mass of radiant cylinder, it seems oversized due to a transcription error in the data, which in some cases did not allow the engine to reach the proper operating temperature and that for this why was subsequently reduced, first by cutting later with the fall of the mould.
Another feature of the engine Asco is cutting carter central horizontal and command of friction with exit from semicarter lower.
The engine has a cylinder of aluminum alloy with cane reported in iron, the size of bore and stroke engine production are 54x54 mm with a compression ratio of 12.5: develops and a 20 HP to 9000 Rpm., with a pair of 1.5 kgm at 8300 RPM.
The power is entrusted to a carburetor Dell'orto VHB 29 AS mixture with 5%.
The transmission provides a clutch disc multiple oil bath and a change in bulk five reports. commanded with a single lever that can be assembled on the right is left.
The cycle consists of a frame of steel tubes closed cradle, complete with swingarm not exceed 13 kg, the front fork is a teleidraulica production Aspes with 150 cm of hiking, while the rear shock absorbers come from Girling adjustable on three positions.
The drum brakes Grimeca Central have diameters of 135 ant. And 160 posts.
Vanto the house, was the almost total Italian their means, except for the rear shock Girling of English and the German Mahle piston.
Great success had these bikes in motocross, where won many championships and some regional titles Italians, so that drove the home side post in a newborn European championship, with pilots Felice Agostani, Vertemati and alberghetti.
Less fortunate was the regularity in their careers due to the release appuntita engines that made them ill-adapted to climbing in mule track. |
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