Diameter: 68 mm

Stroke: 57 mm

Included adapters on threads from: M8x1 - M10x1.25 - M12x1.25

Material: Aluminum Application: For Carburetors 24:24
carburetor connection: 28.5mm
2 holes
rotary disc valve

Painted in black

Main feature: 3-hole flange
Suitable for 28 PWK carburetor

Sleeve fitting

Ø 60mm
2  Segments
piston pin Ø 15mm

Engages on 24/72 straight teeth by Polini

Z 24 X 72 with straight teeth
with shock absorber

Roller cage included

Note: Advanced

Stroke 57 mm
Cone: 20

Z 22x63 with helical teeth
With shock absorbers

With Approval D.G.M. 37519 S

Painted in black

Carburetor inlet--> 23 mm, 2 holes

Diameter: 21.5 mm

Brand: Polini
Bore: 63
Displacement: 177cc
Spark Plug--> L78C/BR8HS/B8HS

Elastic attack with 40 mm graft
Calibration: Max jet 122, min jet 42

Stroke 57 mm

Brand: Polini
Bore: 57
Stroke: 51
Displacement: 130 cc

Brand: Polini
Bore: 57.5
Stroke: 43
Displacement: 115cc

Bore: 57
Stroke: 51
Displacement: 130 cc

Born with the goal of improving performance while reducing noise, the Original Polini Exhaust is suitable for use with both original engines and basic kits. Designed and engineered to perfectly integrate with the design of the glorious Vespa, its shape and the embossed Polini lettering recall the iconic Polini exhausts, a distinctive brand for generations of Vespa enthusiasts. The design of the curve and the interiors ensures high performance with a low, yet always pleasant, noise level. The exhaust is perfectly interchangeable with the original and has been designed to also use oversized 3.50-10 tires.

Born with the aim of improving performance while reducing noise, the Original Polini Muffler is suitable for use with both original engines and basic kits. Designed and engineered to perfectly integrate with the design of the glorious Vespa, its shape and embossed Polini lettering recall the iconic Polini mufflers, a distinctive brand for generations of Vespa enthusiasts. The design of the curve and the interior guarantees high performance with a low, yet always pleasant, noise level. The muffler is perfectly interchangeable with the original and has been designed to also use larger 3.50-10 tires.

Born with the aim of improving performance while reducing noise, the Original Polini Exhaust is suitable for use with both original engines and basic kits. Designed and engineered to perfectly integrate with the design of the glorious Vespa, its shape and the embossed Polini logo recall the iconic Polini exhausts, a distinctive brand for generations of Vespa enthusiasts. The design of the curve and the interior ensures high performance with a low, yet always pleasant, noise level. The exhaust is perfectly interchangeable with the original and has been designed to also accommodate larger 3.50-10 tires.

Born with the aim of improving performance while reducing noise, the Original Polini Muffler is suitable for use with both original engines and basic kits. Designed and engineered to perfectly integrate with the design of the glorious Vespa, its shape and the embossed Polini lettering recall the iconic Polini mufflers, a distinctive brand for generations of Vespa enthusiasts. The curve and interior design ensure high performance with a low noise level, yet always pleasant. The muffler is perfectly interchangeable with the original and has been designed to also use oversized 3.50-10 tires.

Painted, with aluminum silencer

Thickness: 1mm

Kit composed of cork discs, iron discs, reinforced springs

Bore: 50 mm
Stroke: 43 mm
Displacement: 90 cc

Including prisoners and brass trim