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Polini PWK Carburetor Velocity Stack - 50.5mm Bell

Polini PWK Carburetor Velocity Stack - 50.5mm Bell

$24.00
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Polini PWK Carburetor Velocity Stack - 50.5mm Bell
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Polini PWK Carburetor Velocity Stack - 50.5mm Bell

$24.00
Part number 146-1

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The Polini 50.5mm bell mouth velocity stack is a direct bolt-on intake funnel for PWK-style carburetors. The flared bell mouth profile smooths airflow into the carb throat, reducing turbulence and improving throttle response across the RPM range. Includes set screws for a secure, rattle-free fit. Carburetor not included.

  • Bell mouth (velocity stack) style for improved airflow and throttle response
  • Inner diameter: 50.5mm — fits PWK-style carburetors
  • Outer diameter: 79mm
  • Includes set screws for secure mounting
  • Universal fit — carburetor not included
Spec Detail
Inner Diameter 50.5mm
Outer Diameter 79mm
Style Bell Mouth / Velocity Stack
Carburetor Compatibility PWK-style (universal)
Hardware Included Set screws
Brand Polini

 

Features

  • 50.5mm inner diameter for PWK carburetors
  • Bell mouth profile reduces intake turbulence
  • 79mm outer diameter
  • Includes set screws for secure fit
  • Universal fit — carburetor not included

Specifications

Inner Diameter: 50.5mm | Outer Diameter: 79mm | Style: Bell Mouth / Velocity Stack | Carburetor Fit: PWK-style | Hardware: Set screws included

Model Fitment

Universal fit for PWK-style carburetors; most 50cc–150cc scooters and mopeds

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