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DEXTER RACING Item number: DEX60222
DEXTER RACING

Exhaust - DEXTER RACING Babydoll curly- Vespa Smallframe 125-144 cc, Quattrini M1L, Italkast GRV, VMC ET6/ET7

Compatible: Vespa V50, 50 Special, ET3, PV125, PK 125 S/XL/XL2/ETS, Motovespa PK 75/PK 125, Primavera 125 T3

Key data

Curly design: inconspicuous under the left side cover
Design: 125-144 cm³, sporty characteristics with wide band
Exhaust stud spacing 54/56 mm and 60-62 mm (depending on cylinder)
Manifold inner diameter 35 mm, XL rear silencer 70 × 270 mm
Tire clearance for 3.50-10
Recommendation: short fourth gear for tight connection
389,00 €*
available immediately
Shipping weight 3,51 kg
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DEXTER RACING Babydoll Curly - Exhaust Vespa Smallframe 125-144 cm³

Curly layout with space-saving, rolled-up flow under the left side cover. Designed for powerful smallframe setups on conventional engine housings with diaphragm intake cylinders, for example Quattrini M1L, Italkast GRV or VMC ET6/ET7. Powerful start from around 5,000 /min, usable speed range up to over 11,000 /min - suitable for road use and very high traction.

Characteristics and use

Early torque from the bottom, clean pulling power up to over 11,000 rpm
Very suitable on reed valve direct intake cylinders such as Quattrini M1L
Road-oriented with sporty output and full range
Curly routing: more space, discreet look, left side cover remains mountable

Technical data and compatibility

Cylinder: 125-144 cm³, exhaust studs 54/56 mm and 60-62 mm
Manifold inner diameter: 35 mm
Tire clearance: designed for 3.50-10
Mounting: without cutting on Special and Vespa 50
Primavera/ET3: note possible interference with glove compartment
PK/HP/FL2/ETS: remove inner partition under the left hood

Installation instructions for Curly installation

Careful tension-free alignment of the plug connection; clean sealing surfaces
Primavera/ET3: Check glove compartment clearance
PK/HP/FL2/ETS: cut/remove inner partition under the left-hand hood
Short fourth gear is recommended to keep the connection in the upper area

Example setup from practice

Italkast GRV132 cast iron, stroke 54 mm, carburetor YSN 30, control angle 131 / 186
Result at the wheel: around 21 hp and 19 Nm
Wide range suitable for everyday use with powerful mid-range revs

Compatible vehicle models (selection)

V50, 50 Special
125 Primavera, 125 ET3 (note: glove compartment interference possible)
PK 125 S, PK 125 XL, PK 125 XL2, PK 125 ETS
PK 75 (Motovespa depending on market), PK 125 (Motovespa)
HP/FL2: remove inner paratie left
Quattrini M1L 56-60
Italkast GRV
VMC ET6 / ET7

Check exhaust stud spacing before ordering.

FAQ - Frequently asked questions about the "Babydoll Curly"

Yes. Due to the sporty design, a short fourth gear is recommended in order to keep up.
Smallframe cylinders with 54/56 mm or 60-62 mm exhaust stud spacing in the 125-144 cm³ range, for example Quattrini M1L, Italkast GRV, VMC ET6/ET7. Check the stud bolt spacing before ordering.
Yes, the system is designed for 3.50-10. Check the clearance for special rims or wider tires.
Special and Vespa 50: no cutting required. For PK/HP/FL2/ETS, the left inner paratie must be removed. For ET3/Primavera, the glove compartment may come into conflict.
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OEM numbers (for comparison purposes only)
DEXTER RACING:
060222
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