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The machined insert that forms the combustion chamber in a two-piece head: it sets the engine’s compression.
Available in several combustion-chamber volumes.
VHM offers this cylinder head insert for KTM SX 65 and HUSQVARNA CR 65 2003-2015. 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.
Available in several combustion-chamber volumes: a smaller volume raises compression (more punch, quality fuel essential), a larger one lowers it (smoother engine).
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:
HUSQVARNA CR 65 2015
HUSQVARNA CR 65 2014
HUSQVARNA CR 65 2013
HUSQVARNA CR 65 2012
KTM SX 65 2008
KTM SX 65 2007
KTM SX 65 2006
KTM SX 65 2005
KTM SX 65 2004
KTM SX 65 2003
Click on your bike to see all compatible parts.
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