Crankshaft (pin 15mm / stroke 51mm) 5316595 - Vespa ETS 125 AIR 2T ('84-'85) / Primavera ET3 125 AIR 2T ('67-'83) - Malossi

505,26 EUR shipping costs Product code: MA.5316595

Crankshaft (15mm / 51mm) Malossi. Among the most important applications are: Vespa ETS 125 AIR 2T (1984-1985) / PK 125 AIR 2T (1983-1989) / PK 125 S AIR 2T (1983-1989) / PK 125 XL AIR 2T (1986-1989) / Primavera ET3 125 AIR 2T (1967-1983).

- Crankshaft for rotary valve housing;
- The crankshaft for Vespa is one of the most delicate;
- All Malossi crankshafts for Vespa are made from aerospace-grade reinforced steel and are vacuum-cast;
- It is a material highly resistant to scratches and guaranteed by the certifications required in Malossi's strict manual;
- The shape of the piston rod is designed to minimize weight while ensuring the necessary rigidity;
- Technicians have worked on the thread of the lateral axis of the crankshaft transmission, managing to increase strength;
- Even the key position has been revised in terms of both size and shape to prevent thread damage;
- Crankshafts are supplied with special nuts to take advantage of the increased strength of the tighter thread;
- For the rotary valve power unit, the intake phase has been machined within the circular structure of the mass;
- This innovative choice has allowed for a unique shape capable of ensuring extremely efficient fluid dynamics;
- The introduction of tungsten parts (rare metal) in the crankshaft, used as counterweights for stability;
- The shaft for engines with a rotary valve intake has a standard length shaft and piston rod;
- Pin diameter: 15 mm;
- Stroke: 51 mm;
- Connecting rod: 97 mm;
- Axle diameter: 19 mm;
- Class: Sport.

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