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DEXTER RACING Item number: DEX60220
DEXTER RACING

Exhaust - DEXTER RACING Junior - curly - Vespa Smallframe 100-144 cc - V50, 50 Special, ET3, PV125, PK 125 S/XL/XL2/ETS, Motovespa PK 75/PK 125, Primavera 125 T3

Advantages and key data

Curly layout on the left - discreet, almost invisible
Wide rev range - usually no short 4th gear required
Early, high torque - strong plug & play tuning
Cylinder 100-144 cc, exhaust studs 52/56 mm
Manifold inner diameter 32 mm, O-ring plug-in connection
Tire clearance for 3.50-10; no frame cuts on the models listed below
349,00 €*
available immediately
Shipping weight 3,25 kg
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Dexter Racing "Junior Curly" - Exhaust system Smallframe 100-144 cc (left, almost invisible)

Handmade all-round system from an Italian tuning manufacturer - now as a "curly" version: The resonance body runs on the left and is almost invisible in the vehicle. Designed for early, high torque with a wide band up to over 10,000 /min. O-ring-sealed manifold connection for lasting tightness and quick service.

Characteristics and advantages

Curly guide on the left: very unobtrusive appearance, good ground clearance
All-round layout: powerful from below, usable up to >10,000 /min
Broadband - usually no short fourth gear required
O-ring manifold connection: tight, vibration-resistant, easy to service

Technical data and compatibility

Cylinder: 100-144 cc, exhaust stud spacing 52/56 mm
Manifold inner diameter: 32 mm
Tire clearance: designed for 3.50-10
Important: Not suitable for models with left side luggage compartment (e.g. ET3, various Motovespa derivatives) - fits when the compartment is removed

Compatible vehicle models (selection)

V50 (N, L, R), 50 Special, 50 SS
V90, 90 SS (Super Sprint)
Vespa 100 / 100 Sport
125 Primavera (without left side luggage compartment)
Not suitable: 125 ET3 with left side luggage compartment (only suitable after removal)
PK 50 (N/S/Rush depending on market), PK 50 XL, PK 50 XL2
PK 80 S (DE), PK 100 S (depending on market)
PK 125 S, PK 125 XL, PK 125 XL2
PK 125 ETS

Not suitable: PK "Automatica" - different automatic engine/exhaust system.

Primavera 125 (without left side luggage compartment)
Primavera 125 T3 (= ET3) not suitable with side luggage compartment - suitable after removal
PK 50/75/125 derivatives (Iris/XL/XL2/ETS depending on market) - no side luggage compartment

Notes on curly mounting and tuning

Left luggage compartment: On models with left side luggage compartment (e.g. ET3), installation is only possible without this compartment
Match carburetor/jetting to cylinder and intake system; wide band makes tuning easier
Lightly grease the O-ring of the plug connection; align without tension; retighten screw connections after a few km
Check tire/rim clearance (3.50-10 provided) and shock absorber travel

FAQ - Frequently asked questions about the "Junior Curly"

Identical design in terms of volume/geometry, but different guide/mounting position: The Curly is almost invisible on the top left, thus offering a very discreet look and good ground clearance. The Down & Forward guides the body forwards/bottomwards and is more visible.
No, as long as the compartment is installed. After removing the left side luggage compartment, mounting is possible.
100-144 cc smallframe cylinders with 52 mm to 56 mm exhaust stud spacing. ManifoldØ:32mm.
As a rule, no. The band is wide enough to work with standard 4th gear. Depending on the setup, gear ratio adjustments are of course possible.
No. Automatica models have a different engine and exhaust curve.
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