Vespa Engine and Parts
ENGINE AND PARTS
The heart and driving force of the Vespa, the Engine and Parts section is located at the rear of the vehicle, firmly anchored to the frame by two pins:
the first, at the end of the central tunnel and the second to the shock absorber.
Given its importance, the engine is composed of numerous and different parts. Here are some essential ones:
- Gearbox gears - the Vespa's gearbox consists of gears always in mesh which, thanks to the cross, ensures the possibility to change gear
- Complete clutches and parts
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- Bearings
- Bolts
- Brake shoes
- Candles and parts
- Capacitors
- Carter, trees and gear shift
- Chiavelli
- Clutches, plates, and tools
- Complete stators
- Contacts
- Cooling headphones
- Cranks, pedals, drivetrains, and components
- Crankshafts
- Drums
- Electrical systems
- Engine gaskets
- External coils
- Fan covers
- Flanges, rings and tools
- Flywheel segments
- Inner tubes
- Insulating hoods
- Internal coils and pick-up
- Kick pedals
- Mufflers and parts
- Oil seals and gaskets
- Pistons and rings
- Pulleys, variators and components
- Retaining springs
- Screws
- Side panels and parts
- Tags
- Thermal groups and parts
- Tires
- Variators, clutches, and parts
- Washers and lock nuts
- Wire clamps





Piaggio Ciao

Malossi thermal group Ø46.5 in cast iron pin Ø12 for Piaggio Ciao-SI-Bravo
Yes-Hello-Good
Attention: On the original Piaggio casing, it is necessary to bore.

Malossi MP-ONE reed valve engine casing for models with contact breaker ignition Ciao-SI-Bravo-Boxer
Piaggio Ciao/Si/Bravo/boxer
Pair of sandblasted die-cast aluminum-silicon alloy crankcases.
Integral Malossi project with reed valve intake, controlled by a large
4-petal valve.
They can be used with any thermal unit, exhaust system, crankshaft, and fuel system.
The Malossi reed valve crankcases are perfectly interchangeable with the
original ones and are equipped with a special intake manifold for the
original carburetor or a SHA 13/13 carburetor.
A specific fuel system has been created with a 19 mm carburetor and E12 type air filter, complete with all parts for installation.
Given the very limited insertion spaces in the Piaggio frames, it was
necessary to create a super compact engine, and the great commitment of
our technicians is once again crowned with full success.
The objectives achieved are: highly technical product, robustness,
simplicity, ease of installation, excellent operational result
without modifications (everything connects as in the original engine).
The large 4-petal composite fiber reed valve ensures a

Piaggio Ciao, SI, Bravo

Piaggio Yes
Clear coated, with black anodized silencer.

Piaggio Ciao-SI-Bravo
TECHNICAL FEATURES
Half-shaft material: 18 Ni Cr Mo5.
Monolithic forged half-shafts and rotating masses.
Machining on high-precision machine tools.
As many as five heat treatments on all components.
High surface finish to improve reliability.
Dynamic balancing up to 16,000 rpm.
Forged connecting rod in 18 Ni Cr Mo5 copper-plated, coupled to the shaft with a precision roller bearing for high speeds.

Complete thermal group with head (D43 mm sp12 mm) for Piaggio Ciao-Bravo-Boxer
Piaggio Ciao-Bravo-Boxer

Thermal group WITHOUT head (D43 mm sp12 mm) for Piaggio Ciao-Bravo-Boxer
Piaggio Ciao-Bravo-Boxer

POLINI Head 50-63 cc 211.0226 for PIAGGIO CIAO/PX/SC 50ccm 2T AC
PIAGGIO CIAO/PX/SC 50ccm 2T AC
aluminum
Ø 38.4 - 41 - 43 mm
long thread

Engine crankcase for models with contact breaker ignition Ciao-SI-Bravo-Boxer
Piaggio Ciao/Si/Bravo/Boxer
An exact replica of the original PIAGGIO base produced for the Ciao, Bravo, Si, etc. mopeds, suitable for standard and modified engines.
The supply includes all the nuts, bolts, and washers necessary for assembly, the cylinder mounting studs, and also both crankshaft bearings.

Malossi thermal group base+CVF Ø43 65cc in cast iron pin Ø12 for Piaggio Ciao/Ciao PX
Piaggio Ciao/Ciao PX
(6 transfers - 2-ring piston)
In these thermal units, the characteristic of high durability of cast iron combines with the almost obsessive quality standards of Malossi, one of the very few companies demanding the maximum even from this class of thermal units.
In this perspective, the very strict selections for the coupling between the cylinder and piston are strictly maintained within the range of 20 microns maximum tolerance.

CNC rear wheel axle support flange for Piaggio Ciao Bravo SI
Piaggio Ciao, Bravo, SI
These rear wheel flanges are first CNC machined from solid aluminum then anodized in various colors. Thanks to their precise construction, they allow for significantly more stable riding.
Ref. Orig 124963

AKOA chrome side panel pair for Piaggio Ciao PX with variator
Piaggio Ciao PX

Vee Rubber Tire VRM087 42J (21/2-16) for Piaggio SI FL2/Bravo
Piaggio Ciao/Si FL2/Bravo

Piaggio Ciao/Si FL2/Bravo

Mitas MC-2 Tire (21/2-16/2.50-16 42J TL/TT) for Piaggio SI FL2
Piaggio Ciao/Si FL2

Yes-Hello-Good

Piaggio Ciao/Si FL2

Piaggio Bravo
Piaggio Boxer

Yes-Hello-Good

Polini Spring Kit for Clutch (models without variator) Piaggio Ciao-SI-Bravo
Piaggio Ciao, Yes, Bravo

All Models / Tutti i modelli
Note: Soft type
Measurements: Diameter 7 mm, length 58 cm

Piaggio Ciao/Si/Bravo/Boxer
Ø 26x19x9 mm

Variator roller guide plate Malossi for Piaggio Ciao/Bravo/Si/Boxer

Piaggio Ciao/Si/Bravo/Boxer

Slot flywheel tile for Piaggio Ciao, Bravo, Boxer from 1976 (large type)
Piaggio Ciao, Bravo, Boxer from 1976

Slot flywheel wedge for Piaggio Ciao, Bravo, Boxer until 1975 (small type)
Piaggio Ciao, Bravo, Boxer up to 1975

Malossi thermal group base+CVF Ø43 in cast iron pin Ø10 for Piaggio Ciao/Ciao PX
Piaggio Ciao/Ciao PX

Piaggio Ciao-SI-Bravo

Piaggio Ciao/Ciao PX

JASIL variator rollers Ø 16x13 gr. 8.5 for Piaggio Ciao/Si/Bravo/Boxer
Piaggio Ciao/Si/Bravo/Boxer

BCR variator rollers Ø 16x13 gr. 8.5 for Piaggio Ciao/Si/Bravo/Boxer
Piaggio Ciao/Si/Bravo/Boxer

Piaggio Ciao, YES
Ref.orig 244114

Piaggio Ciao

X SPECIAL belt 15.5x8.5x1163 mm - 30° angle transmission Malossi Over Range for Piaggio SI-Bravo
Compatible only with Malossi Over Range transmission on Piaggio SI and Bravo

Gear tree for PIAGGIO CIAO/PX/SC/SI/Boxer/Bravo/Superbravo 50ccm 2T AC
PIAGGIO CIAO/PX/SC/SI/Boxer/Bravo/Superbravo 50ccm 2T AC
rear wheel

Yes-Hello-Good

Clutch weights for CIAO BRAVO SI GRILLO with variator up to 1988
Hello-SI-Bravo-Cricket with variator

Piaggio Ciao-Si-bravo-Boxer
Note--> Without variator

Piaggio Ciao, SI, Bravo
Ref. Orig 113708