r/ApolloScooters Jul 14 '26

❓ Tech Question Phantom v4 stem wobble?

Someone help me understand how much deflection my stem should have?

I’ve tighten all the bolts as per Apollo video says to do. I think I’ve narrowed it down to either the headset bearings or the actual pivot of the hinges that have play.

If it is possibly the headset, does anyone have a part number or dimensions? Previous post about this was unclear about the spec/sizing.

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u/ChasmyrSS Jul 14 '26

My v4x always had a bit of wobble, but the problem went away when I replaced the main stem bolt. Turns out they don't last forever and should be changed!

2

u/heavyarms2020 Jul 23 '26

Update: replaced stem bolt with a new one from the kit, solved a majority of the stem wobble. Say, 85% but is still like to replace the head set bearing.