The frame is a bianchi and the post is a Thomson. Due to some neglect and now a bit of growth I need to adjust the post. Which is well and truly jammed solid I have tried the hammer attempt from the side, on top to no joy and twisting in a vice except I ain't no the mountain. I've looked on here and seen talk about caustic soda this an option which comes with possible casualties me & bike. Any one know engineers or shops which can help for a small fee ?
Check out this guy's channel - he's got a ton of videos dealing with various stuck seat posts / remedies.
Frame material & seatpost material?
Plusgas probably your best bet.
I've had plenty of success in the past but takes time.
Frame steel post alu. Thanks I 'll have a look .
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