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Rumi - the bikes II

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  • Rumi - the bikes II

    Models Produced:
    SPORT, 1950-58
    FORMICHINO (scooter), 1954-60
    GOBBETTO (factory racer- I think) 1951-55
    TURISMO, (FIRST SERIES) 1950-56
    BICARBURATORE SS, 1953-56
    JUNIOR, (production racer) 1955-59
    GT GRANTURISMO 200, 1953-56
    SCOIATTOLO (scooter), 1951-57
    GENTLEMAN 1959-62
    REGOLARITA' (off road),
    REGOLARITA' SEI GIORNI (off road),
    DIANA 1955-58

    COMPETITION SS THE 52 "GOBBETTO"
    Competition SS52 seems has been produced in approximately sixty exemplary, to leave from 1951, of which 40 of first serie.Utilizzata from the official square Rumi, came proposed in list like one whichever Turismo.. It completes of fanaleria cost in March of 1955, 500.000 round round Liras (the Junior one as an example cost 275.000 Liras). It did not obtain, seen the poor production, some happening of sale, them came preferred the monotree four times of the competition, more competitive and simpler in the guide, but it does not have farces to draw in particular deceit from this commercial one, the gobbetto. it has been sure one of the best ones eighth than liter of years fifty. Most recognizable for the shape of the tank, advanced ergonomic study for l.epoca adopted in this particular of the auto body one, allowing to the pilot one guide position more collection and aerodynamics. The tank prolongedded beyond the staple, crossed from the steering life raft. In opportune proceeds proceeds in the advanced part, it incorporated the contagiri, and a piece of gommapiuma of protection for the mento of the pilot. The propeller from 125 cc, used the traditional base, but it adopted cylinders in special cast iron, pistons in aluminum with special baffle plates to high turbulence, modified compression ratio, could be fed to metilico alcool, in the which case ne came exalted the already good dowries of resumption. The last models mounted an external magnet type Marelli ST261 DASD commant to chain, that the much most efficient one of the traditional one guaranteed an ignition system flies magnet mounted in the first series. The carburetors were famous SS. the Dell.Orto with diffuser from 22 or 23 to vaschetta separate, particular that it prevented vuoti. of carburation in fold. It mounted moreover drainages to megafono. from the unmistakable sound. Front it was equipped of a forcella with biellette oscillating, pushed wheel, posteriorly mounted one suspension to wheel guided with antagonist motivatings force, in the second oscillating series forcellone with large shocks-absorber standard. The most efficient refrained one, was assured from a front drum to flat double quantity and four ganasce, the posterior one always to four ganasce but with one single cam of commando. In 1953, the second series comes equipped of many modifications, like saying previously, principalmente in the suspensions, but the cooling was improved adopting cylinders in aluminum al Nikasil and to the aim to always disperse the heat, the surface of Carter remained crude. The tank assumed a less spigolosa shape and the coloration had varied. The production stopped in 1955. Nelle race, the Rumi never did not succeed in fregiarsi of bay international, gained innumerevoli national contests, many di.le which thanks to its flagman Gianni Zonca, but others important pilots go remembered: Mauro Cintolesi, Tawny Roman, Peter Carissoni, Angelo Troisi, Vincenzo Rippa, Roberto Vigorito, Mario Paleari, Silvano Rinaldi, Miro Riva.

    TURISMO (FIRST SERIES)
    The " Tourism ", first Rumi in absolute, came produced in series to leave from 1950, but the prototype is dated summer 1949. Progetto' Peter Vassena, lecchese, motonautico, already famous technician in order to have established in March of 1948, with its pocket submarine C3, the world-wide record of immersion coming down in waters of the lago of Como to the depth of 412 meters. The first Rumi mounted new the bicylindrical one equipped of most modern Carter to horizontal cut on a cradle chassis double sluice dell.Amisa, from Milan factory of tricycles from transport, the change was to three marce, to flowing gears, of the type to " train balladeur ", l.alimentazione in Carter was regulated from a advanced rotary distributor, l.accensione was to flies magnet. The temporary model made its appearance in the December 1949 the Hall of the Cycle and Motorcycle of Milan. The definitive version was introduced to Bergamo, little weeks after, near a gallery d.arte next to the theatre Donizetti, the new model mounted a various chassis, was lacking in dell.albero the rotary distributor and with single three supports against the four previous ones. It was equipped of central drum brakes efficient much, mounted one posteriorly suspension to wheel guided with telescopic elements and front one mechanical telescopic staple. The cured motion aesthetically was a lot, bicylindrical the two times was absolutely lacking in vibrations, but this first series was not lacking in defects: l.accensione created problems, the change came nicknamed " grattone " and the consumptions properly were not contained. But the noise of the drainage fascinated, l.estetica broke off the outlines and the sales begun nell.aprile of 1950, after l.esposizione of the model of series to the Fair Collection of samples of Milan, touched already first migliaia of unit to the end dell.anno. In October it had been widened the range of the colorations, while in the November of the same year the power was last from 5 CV to 5,400 giri/min. with carburetor from 15 milimeter, to 6 CV to 6,000 giri/min. with carburetor from 16 milimeter. The staple had been lightened and perfected, increasing the inner motivatings force from three to four, while the posterior suspension came equipped of chromium plateed cylindrical linings for the ammortizzatori.

    JUNIOR
    The more fascinating Racing. of the Rumi has been without doubt Competition SS52 dictates Gobbetto., but of fact that one that schieṛ in contest more frequently is sure the Junior.. Used from the official pilots of the house, it came sold also to a consistent number of private runners, is in Italy that all.estero. Produced to leave from 1955, derived from the bicarburatore., double triangolation was equipped of a new chassis in light tubes of varied diameter to cradle open and, purposely studied dall.ingegner Guidorossi, and supplied of one front staple of the Aerles type and forcellone a posterior oscillating. The motion came leggermente offered also with idrotelescopica staple with linings more courts regarding the model Sport, in how much some pilots did not appreciate lateral l.elasticità of the Aerles type. Electrical worker could be acquired complete of system and noises suppressor for I use street, the capiente tank from 18 liters was in aluminum, put molding on in clay from scultore from the same Donnino Rumi. It came accredited in category M.S.D.S. (Machines Derived Sports of Series) where could sure have won more very if in its category the true and own F.M.I. avesse unjustly not accredited also motion from gran prize, like concorrenti the MV 125 monotree. Although that, a lot often the pilots of the opposing houses, had way to observe, species in the tortuosi circuits, smoking seen posterior of the drainages of the of Bergamo motion. The Junior one happening collected immediately a large one, a lot that for averla it had prenotarla and to attend months for the delivery, that although will not turn out to fine production constructed in great numbers. It was equipped of brakes to four stocks, the motor mounted the new cylinders in aluminum to chromium plated canes, with baffle plate pistons of the German K.S., carburetor from 18 milimeter, but to demand also from 20mm and 22 milimeter, in quest.ultimo separated case with vaschetta. Only and extremely modern characteristic of the Rumi Junior, was the marmittoni., drainages that to their inside hid cones and controconi, masked for nasconderli to the competition from a large tube, which increased the power of the machine to all the regimes reducing moreover the fuel consumption. In 1956, for the Swedish market it came prepared a model that, in the respect of the norm in vigor in the Scandinavian country, did not have to exceed the weight of 70 Kg, comprised the carburetor. In order to catch up the scope the motion came equipped of specific solutions like light lateral drum brakes, Carter to magnesium, shocks-absorber standard in place of the Sturker classics, front wheel from 2,00 x 19. and tank of the single ability to 5 lt, knitting inner opportune rooms of lightening. In 1958 the motion came equipped of improvements to canes of the cylinders that ne increased the power to 10 cv to 8,500 giri/m. In 1959 it came replaced from the model Gentleman., but l.azienda by now it was started on the decline, and the new product to times assembled sadly also with warehouse odd lots, did not renew the successes of the Junior one, that it remains without doubt l.ultima, fascinosa, true motion from race of the orobica house.
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