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About VHM inserts
The insert is the replaceable combustion chamber inside the VHM cylinder head. By swapping inserts you quickly change the compression – just loosen the head, take it off and change the insert.
Rule of thumb (starting from the VHM standard insert):
As with everything on a two-stroke there is a limit and there are exceptions, so treat this as a guideline, not an exact rule.
| Part number | AE32089-Q |
| Volume [cc] | 7.80 |
| Piston height [mm] | -0.90 |
| Squish [mm] | 0.65 |
