There's a 'porthole'/dirt ingress system to look through. If you can see seat post, you're at safe insertion, so it's easy to be sure. Henry's looked right when I last saw it.
I had to google that.
"Checkpoint Charlie"
What a crazy frame.
@Hovis started
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There's a 'porthole'/dirt ingress system to look through. If you can see seat post, you're at safe insertion, so it's easy to be sure. Henry's looked right when I last saw it.