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The technique
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PEDAL AND STEERING

The adjustable pedal: the old problem concerning the different heights of the several people driving the karts has been finally solved. By means of a simple but refined transmission system of the gas pedal control and of the brake pump leverage you can obtain up to 10 cm, which correspond to a height difference ranging between about 1,60 m
and 1,80 m.

The drag links: they have been manufactured by making use of a special tied plastic material, which is particularly sturdy and elastic at the same time, and can withstand very violent impacts without breaking (up to over 60 kg of transversal load). The Uni-bals which connect the steering columns to the spindles are screwed on special ˆ anodized aluminium bushings of different colours (silver right screw thread and golden left screw thread) in order to make also the convergence adjustment very easy.

The Spindles: they are the essential elements characterizing the forecarriage, the connection point of front wheels, through which the kart can be driven. They have been expressly manufactured to withstand a continuous and hard use, their body is made of precision casting steel, the lever is composed by two parts which have been forged and electrowelded to make the whole detail sturdy but light at the same time.
The stem is the most delicate detail, which is more subject to impacts and is made of C40 steel. On purpose this is the point absorbing the energy of the most violent impacts and actually it bends not to damage the frame. It can be withdrawn and easily replaced. The spindle is fastened to the frame by means of a ¡ 12 mm net screw and two balls.

 

 
THE ADVANTAGES
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N Series Chassis

Birel has created a department in parallel to the racing department for this product range, focusing on studying, researching and developing the new worldwide phenomenon in indoor and outdoor kart rental and endurance racing. All these new events have one common denominator: they use four-stroke engines. After two years of design and research, Birel is proud to present an innovative kart intended for mass amusement. The entirely new chassis has been expressly designed for rentals and endurance races implementing totally innovative concepts. The extremely solid structure is made of 35 mm diameter molybdenum chromate steel tubes. The new kart can be used for right-engine, left-engine or two-engine versions. Front axle disc brakes ensure perfect deceleration and the 40 mm diameter axle fitted on four bearings spells safety.