Cylinder 130CC DR aluminum for Vespa 125 ET3 Primavera - PK 125

Description

DR Thermal Group Kit In Aluminum 130cc Vespa 125 ET3 Primavera The kit is based on an aluminum cylinder with nickel-silicon galvanic coating, bore 57mm, displacement 130cc, characterized by the distribution with 6 transfer ports and elliptical exhaust. The piston is cast in aluminum alloy with high silicon content with 2 segments to guarantee maximum sealing even in extreme conditions of use. The high turbulence head has a calculated squish band and the candle in a conventional position. The strength of this thermal group is in the balance in terms of power output and quality of delivery, which places it halfway between the basic thermal groups in cast iron and the extreme ones for racing. The new aluminum cylinder kit represents a further technical and performance evolution for those who want to increase the power of their engine by using a special aluminum alloy for the cylinder that guarantees high rigidity even at the high temperatures that develop during use. intense. To obtain a high degree of reliability, the cylinder liner is coated with a co-deposit of nickel and silicon carbide which guarantees very high anti-wear characteristics. The piston, with a new specific design, is made with materials that ensure that its mechanical and shape characteristics remain unaltered even at high temperatures. Piston with high silicon content made with two segments to ensure greater reliability. In addition, special openings on the shell ensure optimal cylinder lubrication. The head, with new increased profiles of the fins, has been carefully designed to favor cooling and improve combustion.

CYLINDER DIAMETER: 57 mm
DISPLACEMENT: 130 cc
PISTON STROKE: 51 mm
CONNECTING ROD: 97
TRANSFER: 6
NUMBER OF SEGMENTS: 2
SIDE CANDLE