By fitting the hcr reed valve spacer you will increase the bottom and mid range rpm torque of your SX85 or SX105.
VHM carbon air intake KTM 450EXC-F / Husqvarna FE450 2019 - 2021
VHM COMBUSTION CHAMBER - HONDA CR125R 2000-2004
VHM insert. The combustion chamber fits the VHM cylinder head perfectly and is easy to change. The last numbers of the part number are engraved on the insert for identification.
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