I've heard the Thompson posts can be prone to slipping too, although I've never used one myself.
When I had a slipping alloy post in a steel frame I used carbon assembly paste, that seems to improve the situation.
@Mikenetic started
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I've heard the Thompson posts can be prone to slipping too, although I've never used one myself.
When I had a slipping alloy post in a steel frame I used carbon assembly paste, that seems to improve the situation.