START - MOTORCYCLES TSKEB
Last season, the Soviet sports riders "koltseviki" took part in many international competitions.
They started at home, at the Tallinn route, and abroad in Finland, Hungary, Czechoslovakia, and finally, in the German Democratic Republic, where he was one of the stages of the championship of the world.
Our lead rider honored master of sports N. Sevost'yanov could in a bitter struggle with many of the most powerful foreign rivals to take the first two places in Tallinn (Classes 250 and 350 cm 3), first place in Turku, the third - in Helsinki (350 cm3), the fourth in Budapest (350 cm3), the fifth - in Brno on the drawing of the Grand Prix of Czechoslovakia, and finally, the fifth (250 cm3) and sixth (350 cm3) places - the "Zaksenringe" in the world championship stage.
Thus, in all competitions N. Sevost'yanov was among the winners (six races on the international prizes).
In international competitions held responsible not only to test our athletes, but also the Soviet motorcycles. They are, so to speak, also competed, with such world-class "competitors" as the "Honda», MB, MC, "Java". In the drawing of the Grand Prix of Czechoslovakia on our machines started Czechoslovak masters Slavichek and Chad, ranked in the 350 cm3 class, second and third places.
Soviet drivers in all competitions played on racing bikes, TSKEB mototsiklostroeniya created in 1959 (C-259) and 1960 (C-360). Since that time, these machines have not been significant changes since the existing design reserves are completely exhausted. To increase power, we must significantly increase the number of revolutions of the crankshaft, but it is limited to increasing the inertia forces reciprocating the moving parts of a crank mechanism and the mechanism of timing. These forces depend on the acceleration and mass of these parts. Reduce both the acceleration and mass, is only one way - the increase in the number of cylinders (due to their size) and the number of valves in each cylinder. In TSKEB scheduled four-cylinder engine design to create a working volume of 350 cm3.
Our machines are for the racing circuit underwent some changes after all. With these changes, which will continue in 1963, we will acquaint the readers. Last year, the construction of the bike the C-360 introduced a new dry clutch, which greatly facilitates engine start at the start and saves so much important in the annular race second. The fact that the clutch running in oil, even when it is squeezed, the disks are glued together, as the oil has a large viscosity. The rider has to spend time and effort to ensure that they crank out. In dry enough to squeeze the clutch lever, the engine is completely disconnected from the rear wheel.
Consists of a dry clutch slave drum (located on the slots of the primary shaft of the gearbox), led by steel wheels, a leading drum major friction discs, ball bearings, seal, pressure plate, springs and mechanism of cutoffs. Given that the entire clutch mechanism is separated from the cavity transmission gasket, oil, located in the cavity, does not fall on the surface of the friction discs. The coefficient of friction is 2.5-3 times higher than that of disks, washed with oil. Therefore, it became possible to reduce the number of disks from seven to four and reducing the spring force. As a result, the driver has become easier to turn off the clutch. The cover has a few openings for cooling air clutch.
By 1963 sporting season of racing motorcycles TSKEB a four-stroke engines is scheduled to enter a two-sided front brake, the transmitting reaction torque to both front fork pen at a time.
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