Ø 72mm
2 piston ring(s)
piston pin Ø 16mm

Length-->86.70mm
Ø 16.9 mm
thread M7

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Length-->79mm

Pin-->15x48.5x10mm

Compression-->30

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Length-->70mm

Pin-->15x44x10mm

Compression-->35

Cone 20 mm / Cone 20 mm
Stroke 51 connecting rod 97
Valve type

Bore: 55

Stroke: 43
Displacement: 102 cc

DOT: 2016

For clutch 6 springs

Clutch bell machined from solid complete with springs and primary 69 teeth, compatible with pinion 26 and 28 teeth. Shock absorbers machined from solid.

Dimensions-->l=835 mm, w=21.5 mm, h=13 mm

VESPA SMALL FRAME: VESPA 50-90-125 PRIMAVERA-ET3-PK-PK XL
APE 50

SETUP SPRING CHOICE:
->6 large springs: for touring engines 10/12 hp: using 6 springs makes the clutch lever operation more comfortable
->12 springs: for engines up to 25 hp: using 12 springs ensures slip resistance
->18 springs: for engines over 30 hp: adding 6 small springs (CIF ART. 5569-MF) inside the 6 large ones.
NB: with the use of 18 springs, it is suggested to use a clutch cover with a rack-and-pinion clutch release to make the clutch softer)

TECHNICAL SPECIFICATIONS:
The clutch is composed of:
->Clutch basket made from solid steel
->6 springs diameter mm.14 in harmonic steel
->6 springs diameter mm.10 in harmonic steel
->Spring holder and closure disc made in an innovative alloy used on all Fabbri Racing clutches. This alloy ensures the

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Thickness --> 2.5 mm

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.

Main features:
Diameter: 63 mm
Elastic bands included

In metal, Aluminum color.

Carter for Vespa Special, Et3, and PK entirely cast and machined in Italy.

They are reinforced in thickness in every part, made in shell with tempered Galsi9 material and assembled with 13 hexagon socket screws of 6mm.

On the flywheel side, they are machined to also accommodate the Vespatronik ignition and on the top side, they are prepared for the installation of exhausts that run behind the shock absorber (such as M3XC, Tipo R, or
similar).

Originally closed by casting, it will only need to be opened to mount cylinders without intake.

The support arm is much more robust than the original, shaped in
a way that allows the use of a 3.50/10 tire.
Equipped with a support for the water pump that takes movement from the
fourth gear (third gear).
The wide and thick base is made to accommodate various types of cylinders
of the M, R series, or other brands, without welding overlays.
Inside, the pump housing is machined for the installation of its dedicated full-shoulder shaft, with

Round flywheels, stroke 51mm
Shoulders 87
Fits both bearings 20x47x14

Ideal for Quattrini M1B

Stroke 57 mm

Displacement: 144 cc - New version with exhaust booster

New version of the thermal group for Vespa ET3, Primavera, Special, PK,
crankcase intake. It has a larger exhaust (muffler fixing hole spacing
of 56mm), an interior with new transfer ports,
resized shell, and an enlarged base. It consists of an
aluminum cylinder (Nikasil, 60mm bore, 51mm stroke, 150cc,
exhaust booster, 5 transfer ports), interlocking aluminum head,
lightened piston (single ring), gaskets, assembly instructions.
It can be mounted without boring the crankcase.

Compatible with Carter Quattrini and Pinasco

SPECIFIC FOR QUATTRINI M244 THERMAL GROUP
Stroke 60 mm
Rod length 126 mm (rotary valve)

Head with central spark plug

Bore: 62 mm
Displacement: 172cc
Stroke: 57 mm

Cylinder coating: Nikasil
Reed valve intake on the cylinder

Full shoulders Ø87mm, stroke 51mm, connecting rod 97mm, shaft length 48mm.
Pin 15 mm

Full shoulders Ø85mm , stroke 51mm, connecting rod 102mm, shaft length 48mm.
To be mounted with two bearings 25x52x15mm and two oil seals 24x35x7mm. Optional to be purchased separately

Measurements: 16x22x12 mm

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.