This insert with 8.00cc volume is the VHM standard for KTM 85SX with 12° piston and is developed for the best overall performance. 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 indentification.
Use in combination with VHM head AA33171 and VHM 12° piston APKT08521707
Best overall performance
Quick to adjust
Good resistance to detonation
This insert does not fit into an OEM head, only a VHM head
Specifications
Part number
AE32281-013
Type
VHM standard
Volume [cc]
8.00
Piston height [mm]
+0.55
Squish [mm]
0.80
Piston crown shape
Flat top 12°
Bore
Ø47
Applications
Application
Make
Model
Year
Motocross
KTM
85SX
2018-2024
Motocross
Husqvarna
TC85
2018-2024
Motocross
GasGas
MC85
2021-2024