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The machined insert that forms the combustion chamber in a two-piece head: it sets the engine’s compression.
VHM offers this cylinder head insert for HUSQVARNA TC 300, TE 300, KTM EXC 300, SX 300 and GAS GAS EC 300 2017-2023. On a two-piece head, the insert (the "dome") forms the combustion chamber. Its volume and shape set the compression and the character of the engine.
The benefits:
Signs of detonation, leaking O-rings or the wish to change the compression: the insert can be swapped in minutes, with new O-rings.
Cross-Mania tip: Fit new O-rings, tighten in a cross pattern to the specified torque and, with a higher-compression insert, use high-octane fuel.
Check the exact model and year of your bike in the list below before ordering.
Fits:
GAS GAS EC 300 2023
GAS GAS EC 300 2022
GAS GAS EC 300 2021
HUSQVARNA TC 300 2022
HUSQVARNA TC 300 2021
HUSQVARNA TC 300 2020
HUSQVARNA TC 300 2019
HUSQVARNA TC 300 2018
HUSQVARNA TC 300 2017
HUSQVARNA TE 300 2023
HUSQVARNA TE 300 2022
HUSQVARNA TE 300 2021
HUSQVARNA TE 300 2020
HUSQVARNA TE 300 2019
HUSQVARNA TE 300 2018
HUSQVARNA TE 300 2017
KTM EXC 300 2023
KTM EXC 300 2022
KTM EXC 300 2021
KTM EXC 300 2020
KTM EXC 300 2019
KTM EXC 300 2018
KTM EXC 300 2017
KTM SX 300 2022
KTM SX 300 2021
KTM SX 300 2020
KTM SX 300 2019
KTM SX 300 2018
KTM SX 300 2017
Click on your bike to see all compatible parts.
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