POLINI EVOLUTION TUNING KIT VESPA ET3

POLINI 135 cc ENGINE KIT – POMPOSA 500 KM REPLICA – EVOLUTION SMALL FRAME TUNING KIT

Directly inspired by the configuration used by the Polini Team in the famous Pomposa 500 Km, this kit represents one of the most complete performance setups available for Vespa Small Frame models.

This configuration is based on the experience gained in endurance racing, where reliability, torque and performance must work together for hundreds of kilometres while the engine is constantly operating at maximum output.

This kit makes it possible to build a high-performance engine, ideal for anyone looking for an extremely responsive and reliable Vespa, suitable for both sporty riding and touring.

All components have been selected to provide an excellent balance between performance, durability and reliability.

Components included in the kit

• Polini Ø58 cast-iron cylinder kit – 135 cc (Part No. 140.0050/E)
• Polini crankshaft, 51 mm stroke (Part No. 210.0057)
• Bearing and oil seal kit (Part No. 282.0006)
• Polini electronic ignition (Part No. 171.0544)
• Polini Original For Race exhaust (Part No. 200.2036/R)
• Polini PWK Ø24 carburettor (Part No. 201.0166)
• Polini 3-bolt intake manifold (Part No. 215.0435)
• Polini clutch kit (Part No. 230.0504)
• Polini 27/69 primary drive (Part No. 202.1222)
• Polini clutch cover (Part No. 170.0308)
• Engine Woodruff key set (Part No. 230.0406)
• Polini gearbox cluster 10-14-17-20 (Part No. 202.1417)
• Polini gear selector cruciform (Part No. 230.0402)
• NGK B9ES spark plug
• SIP black engine crankcase (Part No. 24301000)

Engine kit supplied for assembly

The product is supplied complete with all the components listed above, but requires assembly.

Engine assembly is not included and must be carried out by qualified personnel.

For customers looking for a ready-to-install solution, we can also supply a complete turnkey engine, fully assembled.

Technical note

The Vespa used by the Polini Team in the Pomposa 500 Km was equipped with a 24/72 primary drive ratio, specifically developed for racing and optimised for the characteristics of the circuit.

For this configuration, we have instead selected the Polini 27/69 primary drive, which we consider more suitable for the type of use most frequently requested by our customers.

This is the ratio we most often recommend because it makes excellent use of the engine's torque while providing a very good balance between acceleration, mid-range performance, top speed and riding comfort.

This choice makes the engine more enjoyable and versatile in everyday use, without sacrificing the high performance that distinguishes this tuning setup.

A configuration born from experience

A solution designed for enthusiasts who want to build a top-level engine using carefully selected Polini components to achieve high performance, reliability and maximum riding enjoyment.

Kit intended for use on closed racing circuits. For use on public roads, please contact the competent vehicle registration authority and check the regulations applicable in your country.