Attention, prohibited on the road, only reserved for competition.
Here is the magnificent kit from ATHENA called Racing but with stud bolt. This 70cc kit with a diameter of 47.6mm with a 12mm axle is made with the highest quality aluminum on the market. It really allows maximum strength while keeping a reasonable price. This kit is equipped with a cylinder head with aluminum studs with a high silicon content, it will allow you better engine cooling. Equipped with a high compression combustion chamber, tapered, polished finish. The piston is a 1mm mono-segment model to have the least possible friction and therefore greater ease in reaching the highest speeds. These diagrams are very well worked, seen upwards to gain a maximum in recovery, acceleration and lengthening. with an almost perfect finish. Clearly this kit is an excellent performance gain without neglecting reliability for time. The whole RRD team was pleasantly surprised to see this kind of kit with such a good finish, all for a low price. It was sold with a set of wedges to best adjust your squish for optimal operation.
We recommend accompanying this kit with at least : 21mm carburetor, reinforced crankshaft (39.2mm stroke and original size 80.00 connecting rod with a 12mm axle, reinforced bearings, ignition holding the turns (minimum original improved with box), racing exhaust, cold racing spark plug…
As an option, we offer you a stage 1 preparation, this preparation is a modification of the exhaust port by increasing the diagrams and improving the duct, it increases the performance of the cylinder. An improvement to the bottom of the skirt is also included in this modification. Count a little extra time for this preparation!
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