Parmakit Cylinder W-Force Sixty Six 175cc, d=66mm 51mm stroke 110mm conrod Vespa Smallframe
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Description
Premium quality performance parts made in Italy - Parmakit Cylinder W-Force Sixty Six 175cc with 66mm bore, 51mm stroke for 110mm connecting rod, for Vespa Smallframe models (Vespa Special / ET3 / PK / Primavera). The "Sixty Six" is part of Parmakit's W-Force group with direct intake / reed valve, and it is the one with the biggest bore and highest displacement. Perfect for Endurance racing and of course everyone else looking for maximum power output.
The cylinder shines on all fronts: lots of power and fantastic torque are combined with very high reliability - this top quality tuning kit will get get your Smallframe Vespa an impressive boost and will last you a long time. And the huge 66mm bore is not the only exceptional feat this cylinder has in stock - high-precision workmanship, ingenious layout and top quality materials are all bound to raise your Vespa to the next level.
The aluminium cylinder with Nikasil-coated bore is very robust, reliable and low-maintenance. It has 7 transfer ports. The piston (Vertex) comes with 16mm pin as well as circlips and rings (x2). The cylinder comes with a modular cylinder head (two-piece, with separate combustion chamber) for more efficient cooling; spark plug position is off-centre. Also included are an intake manifold with rubber adapter, a massive 4-petal reed valve and a matching gasket kit.
The cylinder fits all Smallframe Vespas provided that you use a matching crankshaft with 110mm connecting rod (e. g. PM57940.14). Please check if your crankshaft and especially the bearings are in good condition before mounting the cylinder kit.
For optimum performance we recommend using a larger carburetor (34mm or even more). Also recommended: a matching tuning exhaust (e. g. PM57930.08) to unlock the full potential of this kit. And if you want to go all out, we recommend complementing your new cylinder with a race ignition (PM57008.22).
The "Sixty Six" cylinder kit includes:
- Nikasil-plated aluminium cylinder 175cc, 66mm bore (51mm stroke / 110mm conrod)
- CNC-machined modular cylinder head, anodized black
- intake manifold, 4-petal reed valve, gaskets and small parts
How to Install a cylinder on a scooter, motorcycle or moped
The cylinder or cylinder kit is the heart of the engine on scooters, motorcycles and mopeds. It consists of a cylinder, a piston with piston ring(s), a cylinder head and gaskets needed for installation.
The service life of a cylinder depends on whether it has been fitted correctly.
Tuning Level: High End racing
We categorize our products into different performance levels Original, Sport, Racing and High End , so that our customers can choose the right parts for their setup. It is really important to combine parts that belong to the same tuning level, this is especially true for cylinders, crankshafts and exhausts.
High End Racing products are exclusively designed for racing and should only be handled by tuning pros with the appropriate technical know-how. High-end racing parts often require modifications or machining of certain elements to accommodate the often larger components (larger crank webs, larger intake, etc.). Whether you stick with 50cc or increase the displacement, high-end racing parts offer much higher performance than the original parts and are the most powerful tuning parts.
Note: To ensure the reliability of the engine, it is important that the parts are compatible and that you do regular maintenance on your two-wheeler.
Aluminium cylinders
Aluminium cylinders are more powerful than cast iron cylinders, but require more regular maintenance and must be combined with different components such as a reinforced crankshaft and a larger carburetor.
How to run in an aluminium cylinder?
Aluminium cylinders should be run in for about 200 kilometers , and you should use a fully synthetic engine oil.
Note: To ensure optimum performance and reliability, it is advisable to measure the squish clearance. Just have a look at our tutorial How to adjust squish clearance.