CY50 20mm Sintered Manifold


Fits a Keihin PC onto a CY50 with standard engine or big-bore kit

1 in stock (can be backordered)

This manifold is designed to fit the standard 49cc short stroke engine. No need to mess around boring up your 40 year old original Honda manifold, which will only allow you to go up to 16mm.

The intake diameter is 20mm. The position of the carburator is a perfect copy of the original. Ideal to get the best out of your bore-up project.

This part comes with mounting bolts, gasket not included.

Material & Finish

This part is made from laser-sintered Alumide, a mixture of aluminium and polyamide.

  • heat resistant up to 140 degrees
  • looks like sand-casted aluminium
  • Alumide has good thermic insulating capacities
  • the mounting flanges are sanded to ensure a well-sealing finish
    sealed with matte, fuel resistant clear coat

– Warranty disclaimer –

  • Alumide is claims a heat resistance of up to 140 degrees Celsius.
  • This is borderline for the purpose of an intake manifold. Some pieces last long, other don’t.
  • Consider this a prototype for testing purposes. No warranty can be given about heat deformation.

For a solution that will hold up over time, a CNC part in solid aluminum is recommended.


! Not suitable for use on public roads, use only for track or display purposes!
! this product is explicitly sold WITHOUT WARRANTY. Only buy if you agree to this.

SKU CY5020SLS-1 Categories ,

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