Thermal groups for Vespa and parts
When we talk about Vespa, we cannot help but mention one of the key elements that defines its performance: the engine group. This component, essential for the functioning of the engine, includes the cylinder and the piston, which work together to ensure that every drop of fuel is transformed into power and speed.
If you are a scooter enthusiast, you know how important it is to have an efficient engine group. It not only affects the overall performance of your vehicle but also impacts its reliability over time. Vespa engine groups are designed to withstand wear and tear, thanks to high-quality materials and robust construction, ensuring excellent durability over time.
Base gasket thickness 0.5mm VMC CRONO cylinder kit Vespa 125/150 Sprint V-GTR-TS-PX
Vespa 125 PX
Vespa 125 GT/GTR/TS
Vespa 125 Cosa
Vespa 150 PX
Vespa 150 Sprint Veloce
Vespa 150 Cosa
Vespa 200 Rally VSE1T
Vespa 200 PE VSX1T
Vespa 200 Cosa VSR1>2T
Vespa 200 PE VSX1T Millennium '98
Thermal group VMC EXPLORER 244cc Ø 72mm CENTRAL SPARK PLUG
Conversion kit for engines: Vespa 200 Rally/P200E/PX200 E/Lusso/'98/MY/Cosa 200
7-port aluminum cylinder, shell moulding technology, liner with nickel-silicon treatment
Bore 72 mm, Stroke 60mm, Connecting rod 126mm (quattrini cranks) or 127mm (Sip cranks)
Total displacement 244 cc, Main Transfer Phases: ~ 120° Exhaust: ~ 178°
Recessed head with silicone Oring gasket and 8 cylinder mounting points
Steel exhaust manifold with silicone Oring gasket fixed to the cylinder with specific bracket and 4 screws
The cylinder features a sleeve of about 8mm that allows proper piston guidance even if mounted in 62 and 64 mm stroke
The sleeve has a larger external diameter compared to original cylinders
and requires boring the casing inlet to 76mm for 8mm
depth.
To perform this operation manually, a steel base/guide is provided to screw onto the casings
Simply perform the work with a cylindrical cutter
Thermal group VMC CP-58 135cc Ø 58mm stroke 51mm - Vespa smallframe
Bore diameter 58mm Stroke 51mm Displacement 135cc
Timing: Main transfers 124° Exhaust 180°
Aluminum alloy dual-ring piston with high silicon content.
CNC machined die-cast aluminum head
Steel rings Steel pin Steel clips
It mounts with 51mm stroke crankshafts and 97mm connecting rod
No need to file or remove the dust seal half-moon on the engine casing base.
Paired with the VMC Siluro exhaust, it becomes an engine with power always available while maintaining the reliability of the original engine with a classic look and sound.
The perfect tuning for your Vespa.
VMC CRONO thermal group gasket kit for Vespa 125/150 Sprint V-GTR-TS-PX
Vespa 125 PX
Vespa 125 GT/GTR/TS
Vespa 125 Cosa
Vespa 150 PX
Vespa 150 Sprint Veloce
Vespa 150 Cosa
7-port aluminum cylinder with Nikasil-coated bore and exhaust "Booster".
Bore diameter 63mm, stroke 57mm, displacement 177cc,
main transfer phases 117°, exhaust 177°. Meteor dual-ring aluminum alloy piston
Die-cast aluminum head with 8 fixing points with recessed squish band
Steel rings. Steel pin. Steel retainers.
Cylinder gaskets in paper/aluminum.
Zinc-plated steel exhaust manifold bolted with Viton O-ring gasket.
Thermal group VMC RV-A 100 (100cc) for Vespa 50 V5A1T N/L/R/50 Special V5A2
Vespa 50 V5A1T N,L,R, Vespa 50 Special V5A2>3T, Vespa 50 Special V5B1>4T, Vespa 50 PK, Ape 50
VMC has created a superior class cylinder with this lamellar for the RV-A 100 cylinder.
The technical solutions on this cylinder allow for performance that was previously reserved for long-stroke cylinders.
The cylinder is made of aluminum with a Nikasil-coated barrel and lamellar intake.
The head is CNC machined, with a viton gasket and secured with eight M6 bolts.
It has a bore of 54 mm and a stroke of 43 mm, 8 transfers
Exhaust port with bridge with an outlet diameter of 28 mm and stud spacing of 52 mm
Phases 113° intake and 171° for exhaust
The manifold has an internal diameter of 25 mm and is equipped with a four-petal reed pack.
Included in the kit are the original valve closure cap screws and a kit of paper gaskets of different thicknesses.
Recommended carburetor size: 19 - 24 mm
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Enhancing the thermal group of your Vespa doesn't just mean increasing power; it also means improving the riding experience. With a properly upgraded thermal group, you can achieve greater acceleration and a higher top speed, turning every trip into an exciting adventure.
Increasing Displacement: Increasing the engine's displacement is one of the most common modifications. For example, upgrading from a 125cc cylinder to a 177cc one can lead to a significant performance boost.
Cylinder Replacement: Aftermarket cylinders are designed to offer superior performance. Brands like Polini and Malossi offer high-quality cylinders that ensure power and reliability. Consider also replacing the exhaust
