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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Gruppo termico completo Olympia (75cc) per Vespa 50 N/L/R-Special-PK
Vespa 50 V5A1T N,L,R
Vespa 50 Special V5A2>3T
Vespa 50 Special V5B1>4T
Vespa 50 PK S/XL/N/HP
Alesaggio : 47mm
Corsa : 43mm
Cilindrata : 75cc
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Thermal group with head, competition 151cc Low headlight for Vespa 125/150 VN-VM-VB1-VL1>3T
Vespa 125/150 VN-VM-VB1-VL1>3T
For VN and VM series, a 57 stroke crankshaft and compensation spacer are required
nodular cast iron
3 transfers
short threading
Ø 57.0mm
stroke 57mm
incl. cylinder head
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Gruppo termico completo EVOK ( 75 cc ) per Vespa 50 N-L-R-Special-PK-XL-N-HP-FL
Vespa 50 V5A1T N,L,R Vespa 50 Special V5A2>3T Vespa 50 Special V5B1>4T Vespa 50 PK Ape 50
Alesaggio: 47
Corsa : 43
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Complete thermal group POLINI Evolution 3 135 cc in aluminum 140.0234 for Vespa 50-125/PV/ET3/PK/S/XL/2
Vespa 125 Primavera VMA1>2T
Vespa 125 Primavera ET3 VMB1T
Vespa 125 ETS
Vespa 125 PK
aluminum
Ø 58.0mm
stroke 51mm
incl. cylinder head
Recommended spark plug: NGK BR10EG
Recommended ignition timing: 17/18°
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Complete thermal group POLINI Evolution 135 cc in cast iron 140.0050/E for Vespa 50-125/PV/ET3/PK/S/XL/2
Vespa 125 Primavera VMA1>2T
Vespa 125 Primavera ET3 VMB1T
Vespa 125 ETS
Vespa 125 PK
cast iron
6 transfers
Ø 58.0mm
stroke 51mm
incl. cylinder head
Recommended spark plug: NGK BR9ES
Recommended ignition timing: 17°
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Vespa 125 Primavera VMA1>2T
Vespa 125 Primavera ET3 VMB1T
Vespa 125 PK
Bore: 57mm
Stroke: 51mm
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Vespa 125 PX
Vespa 125 GT/GTR/TS
Vespa 150 PX
Vespa 150 Sprint Veloce
Bore: 63
Displacement: 177cc
Stroke: 57
Notes: Remarkable torque and low consumption.
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Complete thermal group BGM PRO 177/187 cc (also for Elestart/electric start) side spark plug 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
The BGM PRO 177cc is an improved and more powerful version of the proven BGM177 cylinder for Vespa PX125/150, now also compatible with models equipped with electric start.
Everyday Performance
The BGM177 cylinder is designed to offer high performance, durability, and reliability for daily use. By replacing the original cylinder, it is possible to double the power of the standard 125cc engine, with generous torque that allows for smooth riding. The cylinder can also be configured to reach over 20 HP, provided the right carburetor, exhaust, and crankshaft are paired with it. It is therefore an ideal solution for beginners who want to expand performance in the future.
With a displacement of 177cc, the BGM PRO 177 cylinder ensures a safe and relaxed riding experience, maintaining the same reliability and durability as a 200cc engine, operating within the same RPM range as a standard engine. It also offers low fuel consumption and good range. It is compatible with standard components, requiring only a small adjustment to the carburetor jet and spark plug.
Main Features
Material:
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Thermal Group Kit and Pinasco Long Stroke 60 mm Crankshaft (190 cc)
Vespa 125 PX
Vespa 125 GT/GTR/TS
Vespa 150 PX
Vespa 150 Sprint Veloce
Bore: 63 mm
Displacement: 190 cc
Stroke: 60 mm
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Complete thermal group Polini (221 cc) long stroke in aluminum
Vespa 200 Rally VSE1T
Vespa 200 PE VSX1T
Vespa 200 Cosa VSR1>2T
Race 60
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All models
Useful accessory for turning cylinder heads. Suitable for any type of head.
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Elastic ring for Polini piston pin - 15mm x 1.25mm - type G - used for example with Polini 177 cylinder, Polini 130, DR130, DR177
15mm x 1.25mm- type G - used for example with Polini 177 cylinder, Polini 130, DR130, DR177
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Vespa 200 Rally VSE1T
Vespa 200 PE VSX1T
Vespa 200 Cosa VSR1>2T
Race 60
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Cylinder gasket kit QUATTRINI for racing cylinder M1X 172 cc (thickness): 0.3/0.5mm for Vespa 125 GTR 2°/TS/150 Sprint 2°/V/Super 2°/PX125-150/PE/Lusso/Cosa
for Vespa 125 GTR 2°/TS/150 Sprint 2°/V/Super 2°/PX125-150/PE/Lusso/Cosa
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Vespa 125 Primavera VMA1>2T
Vespa 125 Primavera ET3 VMB1T
Vespa 125 ETS
Vespa 125 PK
Round section 1mm
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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
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Vespa 125 Primavera VMA1T>2T
Vespa 125 Primavera ET3 VMB1T
Vespa 125 PK S/XL/N/HP
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SIP Aluminum Cylinder Kit (200cc) for Vespa 200 Rally/P200E/PX200 E/'98/MY/Cosa
Vespa 200 Rally/P200E/PX200 E/'98/MY/Cosa
aluminum
5 ports
Ø 66.5mm
stroke 57mm
2 piston rings
Without cylinder head
incl. base gasket
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Cylinder base engine crankcase Pinasco/Quattrini for Vespa 50/90/125 Primavera ET3 / PK
Vespa 50/90/125 Primavera ET3 / PK
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Complete thermal group Malossi MHR CVF2 crossbar in aluminum (177 cc) 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
Bore: 63 mm-Stroke: 57 mm-Long reach spark plug
The thermal group is completely new and designed in every
part to achieve the best result in terms of performance and
durability. Every aspect of the system has been studied to maximize
mechanical resistance, fluid dynamics, and improve combustion: the
result is a top-of-the-range kit for construction quality and technological advancement.
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Silicone O-ring kit for cylinder head and exhaust of the Super G and Stelvio 177cc thermal group Vespa 125/150
VESPA 125/150 SPRINT V-GTR-TS-PX
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Complete thermal group GOETZE (125cc) in cast iron for Vespa PX-TS-GTR
Vespa 125 PX VNX1>2T
Vespa 125 PX ZAPM 74100
Vespa 125 TS VNL3T
Vespa 125 GTR VNL2T
Transfers: 3
Diameter: 52.5 mm
Stroke: 57 mm
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POLINI Sport 177 cc tuning kit for Vespa 125 VNB/Super/GT/GTR-150 VBA1T/VBB/GL/Super/Sprint
Vespa 125 VNB1>6T
Vespa 125 GT VNL1>2T
Vespa 125 GTR VNL2T
Vespa 150 VBA1T
Vespa 150 VBB1>2T
Vespa 150 GL VLA1T
Vespa 150 Sprint VLB1T
Ø 63mm
stroke 57mm
with SIP Road, clutch discs, POLINI air filter, SI 24 carburetor (without mixer), etc.
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Gasket kit for complete Polini thermal group (115cc) for Vespa 50 N/L/R-Special-PK
Vespa 50 V5A1T N,L,R, Vespa 50 Special V5A2>3T, Vespa 50 Special V5B1>4T, Vespa 50 PK, Ape 50
for thermal group 112 Polini
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Pinasco base gasket thickness of 1.5 mm for modifying the Pinasco 177cc aluminum cylinder from three to two ports for Vespa 125 VBA/VBB/VNB-150 VBA/VBB/GL/Sprint
Vespa 125 VBA/VBB/VNB-150 VBA/VBB/GL/Sprint
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Complete thermal group VMC CRONO in aluminum (177 cc) die-cast head with side spark plug 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 barrel and exhaust "Booster".
Bore diameter 63mm, stroke 57mm, displacement 177cc,
main transfer phases 117°, exhaust 177°. Meteor aluminum alloy two-ring piston
Die-cast aluminum head with 8 mounting points and recessed squish band
Steel rings. Steel pin. Steel clips.
Cylinder gaskets in paper/aluminum.
Zinc-plated steel exhaust manifold bolted with Viton O-ring gasket.
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Complete thermal group Pinasco Zuera RR Big Bore in aluminum (145 cc)
Vespa 125 Primavera VMA1>2T
Vespa 125 Primavera ET3 VMB1T
Vespa 125 ETS
Vespa 125 PK
The brand new Zuera big bore thermal group has a 60 mm bore
the exhaust has been significantly enlarged compared to the previous model
increasing performance, what can I say for the most demanding a
cylinder to try out!
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Complete Malossi cast iron thermal group (102 cc) for Vespa 50 N/L/R-Special-PK
Vespa 50 V5A1T N,L,R, Vespa 50 Special V5A2>3T, Vespa 50 Special V5B1>4T, Vespa 50 PK, Ape 50
Bore: 55 mm
Stroke: 43 mm
Transfers: 6
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Vespa 125 Primavera VMA1T>2T
Vespa 125 Primavera ET3 VMB1T
Vespa 125 PK S/XL/N/HP
Length-->152 mm
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Complete thermal group VMC Stelvio in aluminum (177 cc) 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, barrel with nickel-silicon treatment.
Bore diameter 63mm/Stroke 57mm
Phases-->Main Transfers 114° Exhaust 171°
New single-ring aluminum alloy Piston
New model of Head in aluminum made from CNC machining, Viton O-ring
Squish 1mm ±0.1mm/Tightening nuts 11÷12 Nm/Tightening bolts 10÷11 Nm
RECOMMENDATIONS-->Spark plug NGK B9ES; BOSCH W3CC, Advance 19° before TDC
Main jet 125-130
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Gruppo termico senza testa Malossi sport CVF2 in alluminio (210 cc)
Vespa 200 Rally VSE1T
Vespa 200 PE VSX1T
Vespa 200 Cosa VSR1>2T
Alesaggio: 68,5 mm
Corsa: 57 mm
Candela passo lungo
Range di potenza: 16>23 cv
7 travasi
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Pinasco lamellar thermal group in aluminum (160 cc) for Vespa low headlight 125/150 VM-VN-VL
Vespa 125 VM1T>VM2T
Vespa 125 VN1T>VN2T
Vespa 150 VL1T>VL3T
After the success of the first aluminum thermal unit for Vespa "Farobasso", Pinasco continued development in this field and is now pleased to present the new 160cc thermal unit for Vespa "Farobasso" / 5% cylinder reed valve. Perfectly
interchangeable with the original thermal unit, it keeps the aesthetics unchanged and substantially increases the vehicle's performance. Thanks to the reed valve intake, the "rejection" problems of classic "Piston Port" are eliminated, making the engine even more fun and enjoyable to ride. The power and torque increase
even further compared to the previous cylinder while maintaining reliability. The Pinasco 160cc Reed Valve thermal unit brings all Vespa 5% into modernity while retaining all the original components.
Attention: when using VM / VN / ACMA engine cases, the piston skirt must be shortened by approx. 3-4mm.
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Vespa 50 V5A1T N,L,R, Vespa 50 Special V5A2>3T, Vespa 50 Special V5B1>4T, Vespa 50 PK, Ape 50
Bore: 57.5 mm
Stroke: 43 mm
Transfer Ports: 6
Spark Plug ù--> B9HS
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Complete thermal group Pinasco (177cc) in Cast Iron with central spark plug
Vespa 125 PX
Vespa 125 GT/GTR/TS
Vespa 150 PX
Vespa 150 Sprint Veloce
Bore: 63
Displacement: 177cc
Stroke: 57
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Complete thermal group DR (75 cc) for Vespa 50 N-L-R-Special-PK-XL-N-HP-FL
Vespa 50 V5A1T N,L,R Vespa 50 Special V5A2>3T Vespa 50 Special V5B1>4T Vespa 50 PK Ape 50
Bore: 47
Stroke: 43
Number of transfer ports: 10
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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

Pinasco reed valve kit for reed valve 160 CC cylinder kit Vespa 125 VM/VN/-150 VB1T/VL
Vespa 125 VM/VN-150 VL-VB1T

Complete thermal group Götze 150cc for Vespa 150 Sprint-GL-VNB-VBA-VBB
Vespa 150 VBA1T
Vespa 150 VBB1>2T
Vespa 125 VNB1>6T (for processing)
nodular cast iron
2 transfers
Ø 57.0mm
2 piston ring(s)
without cylinder head

Complete thermal group RMS (90cc) for Vespa 50 N/L/R-Special-PK
Vespa 50 V5A1T N,L,R
Vespa 50 Special V5A2>3T
Vespa 50 Special V5B1>4T
Vespa 50 PK
Ape 50
Brand: RMS
Bore: 53
Stroke: 43
Displacement: 90cc
Good economical alternative!