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    DOMA Expansion Chamber for HUSQVARNA TC 65, KTM SX 65 and GAS GAS MC 65 2016-2023
    DOMA Expansion Chamber for HUSQVARNA TC 65, KTM SX 65 and GAS GAS MC 65 2016-2023

    DOMA Expansion Chamber for HUSQVARNA TC 65, KTM SX 65 and GAS GAS MC 65 2016-2023

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    €242.90
    Tax Included
    Disponible en nuestro proveedor, enviado en 10 a 15 días.

    DOMA expansion chamber for KTM SX 65, HUSQVARNA TC 65 and GAS GAS MC 65 from 2016 to 2023. Handmade in Calais, France.

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    Disponible en nuestro proveedor, enviado en 10 a 15 días.

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      The DOMA 100389 expansion chamber is designed for KTM SX 65, HUSQVARNA TC 65 and GAS GAS MC 65 from 2016 to 2023. On a two-stroke, the expansion chamber isn't just a pipe: its cones send back a pressure wave that fills the cylinder better at the right rpm. Its shape gives the engine its character, and a dented pipe costs power.

      Key features

      • Handmade in Calais, France.
      • 1 mm raw steel, laser-cut parts, pressed and then welded on a jig.
      • Developed on the dyno and on the track.
      • Works with the stock silencer or a Doma silencer.

      Specifications

      • Brand: DOMA
      • Manufacturer part number: 100389
      • Engine: 2-stroke

      Who is it for?

      • Stock pipe dented or cracked after a crash.
      • Looking for more response and more power.

      Good to know

      Competition use only: this pipe is not road-legal.

      Fitting tips

      1. Reuse the stock connecting O-rings if they're in good condition (not included), or fit a new exhaust gasket.
      2. Offer up the pipe without forcing it, fit all the mounts, then tighten.
      3. Warm up the engine and check for leaks at the joints.
      4. Check the colour of the spark plug after the first few rides.

      Why DOMA?

      A French workshop based in Calais since 1992, Doma Racing designs and handbuilds two-stroke expansion chambers and silencers. A 125 world title in 2000 with Grant Langston and original equipment at KTM: a brand run by two-stroke enthusiasts.

      Spare parts and items to plan

      Frequently asked questions

      Do I need to change the silencer?
      No: the pipe works with the stock silencer or a Doma silencer.

      Is it road-legal?
      No: for competition use on closed circuits only.

      Compatibility

      Check the exact model and year of your bike in the list below before ordering.

      Fits:
      GAS GAS MC 65 2023
      GAS GAS MC 65 2022
      GAS GAS MC 65 2021
      HUSQVARNA TC 65 2023
      HUSQVARNA TC 65 2022
      HUSQVARNA TC 65 2021
      HUSQVARNA TC 65 2020
      HUSQVARNA TC 65 2019
      HUSQVARNA TC 65 2018
      HUSQVARNA TC 65 2017
      HUSQVARNA TC 65 2016
      KTM SX 65 2023
      KTM SX 65 2022
      KTM SX 65 2021
      KTM SX 65 2020
      KTM SX 65 2019
      KTM SX 65 2018
      KTM SX 65 2017
      KTM SX 65 2016

      DOMA
      100389
      5 Items

      Specific References

      Click on your bike to see all compatible parts.

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      DOMA Expansion Chamber for HUSQVARNA TC 65, KTM SX 65 and GAS GAS MC 65 2016-2023
      DOMA Expansion Chamber for HUSQVARNA TC 65, KTM SX 65 and GAS GAS MC 65 2016-2023
      DOMA Expansion Chamber for HUSQVARNA TC 65, KTM SX 65 and GAS GAS MC 65 2016-2023
      DOMA Expansion Chamber for HUSQVARNA TC 65, KTM SX 65 and GAS GAS MC 65 2016-2023
      €242.90
      Tax Included