RDV Scootershop

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.

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          there are 10 products
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          Compatibility

          Vespa 125 Primavera VMA1>2T
          Vespa 125 Primavera ET3 VMB1T
          Vespa 125 ETS
          Vespa 125 PK

          technical specifications

          Bore diameter 56mm
          Stroke 51mm
          Displacement 126cc

          Timing: Main transfers 124° Exhaust 174°
          High silicon content aluminum alloy dual-ring piston.
          Die-cast aluminum head, Steel rings, Steel pin, Steel retainers
          Recommended squish 1.2 mm Bolt tightening m6 11-12 Nm, nuts m7 1.4-1.5 Nm
          It mounts with crankshafts stroke 51mm and rod 97mm

          Attention: To be mounted on Piaggio crankcases, a small modification on the half-moon is needed as the cylinder has been designed with generous fluid dynamics that require more space at its base.

          155,00 €
          127,05 € VAT excluded
          1 point RDV = 2 cents 155 points RDV = 3,10 € cashback
          -13%
          Available
          Compatibility

          Vespa 125 PX
          Vespa 125 GT/GTR/TS
          Vespa 125 Cosa
          Vespa 150 PX
          Vespa 150 Sprint Veloce
          Vespa 150 Cosa

          technical specifications


          Shipping time
          24/48 hours
          3,90 € 4,50 €
          3,20 € VAT excluded
          1 point RDV = 2 cents 3 points RDV = 0,06 € cashback
          -5%
          Available
          Available
          07-GA-205-IR
          07-GA-205-IR

          Thermal group VMC EXPLORER Ø=72mm (244 cc)

          Compatibility

          Vespa 200 Rally VSE1T
          Vespa 200 PE VSX1T
          Vespa 200 Cosa VSR1>2T
          Vespa 200 PE VSX1T Millennium '98

          technical specifications

          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

          520,00 € 550,00 €
          426,23 € VAT excluded
          1 point RDV = 2 cents 520 points RDV = 10,40 € cashback
          -5%
          Available
          technical specifications

          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.

          225,62 € 236,90 €
          184,93 € VAT excluded
          1 point RDV = 2 cents 225 points RDV = 4,50 € cashback
          Available
          Compatibility

          Vespa 125 Primavera VMA1>2T
          Vespa 125 Primavera ET3 VMB1T
          Vespa 125 ETS
          Vespa 125 PK

          technical specifications

          Bore diameter 58mm Stroke 51mm Connecting rod 97mm Displacement 135cc

          Timing: Main transfers 122° Exhaust 180°

          Aluminum alloy dual-ring piston with high silicon content.

          CNC machined die-cast aluminum head

          Steel rings Steel pin Steel stops

          It is mounted with crankshafts stroke 51mm and connecting rod 97mm

          No need to file or remove the dust protection half-moon on the engine case 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.

          Shipping time
          24/48 hours
          240,00 €
          196,72 € VAT excluded
          1 point RDV = 2 cents 240 points RDV = 4,80 € cashback
          -10%
          Available
          Compatibility

          Vespa 125 PX
          Vespa 125 GT/GTR/TS
          Vespa 125 Cosa
          Vespa 150 PX
          Vespa 150 Sprint Veloce
          Vespa 150 Cosa

          technical specifications

          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.

          Shipping time
          24/48 hours
          6,26 € 6,96 €
          5,13 € VAT excluded
          1 point RDV = 2 cents 6 points RDV = 0,12 € cashback
          -16%
          Available
          Compatibility

          Vespa 50 V5A1T N,L,R, Vespa 50 Special V5A2>3T, Vespa 50 Special V5B1>4T, Vespa 50 PK, Ape 50

          technical specifications

          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

          Shipping time
          24/48 hours
          252,00 € 299,00 €
          206,56 € VAT excluded
          1 point RDV = 2 cents 252 points RDV = 5,04 € cashback
          Available
          Compatibility

          Vespa 125 Primavera VMA1>2T
          Vespa 125 Primavera ET3 VMB1T
          Vespa 125 ETS
          Vespa 125 PK

          technical specifications

          7-port aluminum cylinder, shell moulding technology, bore treated with Nikasil

          Bore diameter 60mm, Stroke 51mm, Displacement 144cc, EXHAUST PORT WITH BOOSTERS

          Main Transfer Phases 128° Exhaust 188°, exhaust stud spacing 60mm, oval exhaust outlet diameter 32mm

          The exhaust can be slightly filed to 36mm to fit our Evo SeiDue and Kifly 62 exhaust pipes

          Piston with 2 steel Rik rings, complete with pin and clips.

          Die-cast aluminum head with SIDE spark plug and 4 additional fixing screws.

          Squish 1.1mm ± 0.1mm. Tightening torque for M7 studs: 11÷12 Nm, Tightening torque for M6 screws 10÷11 Nm

          Complete with bolts and cylinder gaskets in various thicknesses.

          It is a cylinder suitable for extreme modifications.

          Mounted with a VMC Evo 62, it requires a close-ratio gearbox and more generous expansion exhausts like the VMC Kifly 62 to reach powers of around 30hp
          <

          Shipping time
          24/48 hours
          259,00 €
          212,30 € VAT excluded
          1 point RDV = 2 cents 259 points RDV = 5,18 € cashback
          Available
          Compatibility

          Vespa 125 Primavera VMA1>2T
          Vespa 125 Primavera ET3 VMB1T
          Vespa 125 ETS
          Vespa 125 PK

          technical specifications

          6-port aluminum cylinder, shell moulding technology, Liner with Nikasil treatment

          Bore diameter 60mm Stroke 51mm Displacement 144cc SINGLE PORT EXHAUST

          Main Transfer Phases 126° Exhaust 186°, exhaust stud spacing 56mm, exhaust outlet diameter 32mm

          Piston with 2 steel Rik rings complete with pin and clips.

          Die-cast aluminum head with SIDE spark plug with 4 additional fixing screws.

          Squish 1.1mm ± 0.1mm. Tightening of M7 stud nuts: 11÷12 Nm, Tightening of M6 screws 10÷11 Nm

          Complete with bolts and paper cylinder gaskets of various thicknesses.

          It is a versatile cylinder that is suitable for both mild and more extreme tuning.

          With more generous expansion exhausts like the VMC EVO 52, it transforms into a classic 2-stroke racing engine.

          Installed with the Vmc Siluro Sport, the cylinder transforms into a fast touring engine with generous torque from low revs and excellent top-end power.

          Attention: To

          Shipping time
          24/48 hours
          259,00 €
          212,30 € VAT excluded
          1 point RDV = 2 cents 259 points RDV = 5,18 € cashback
          Available
          Compatibility

          Vespa 125 Primavera VMA1>2T
          Vespa 125 Primavera ET3 VMB1T
          Vespa 125 ETS
          Vespa 125 PK

          Shipping time
          24/48 hours
          51,00 €
          41,80 € VAT excluded
          1 point RDV = 2 cents 51 points RDV = 1,02 € cashback

          Hai visualizzato 10 di 10 prodotti

          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