X440T Engine Knocking Issue ECU Update Seems to Fix It
Just sharing this for X440T owners:
Apparently, Harley is rolling out an ECU/engine flash that seems to fix the knocking/tick-tick sound during acceleration.
If you're experiencing this issue, it may be worth asking your service centre about the ECU update.
Sharing in case others aren't aware. ✌️
Posted Sep 14, 2026, 10:30 PM UTC
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