Removing Stuck Aluminum Seatpost From Steel Bike Frame 

The seatpost on the thrift store bike I bought was completely frozen. Watch my adventures in trying get it unstuck. I eventually got it out. The bike is a Mongoose Sycamore with a Cro Moly frame. The seatpost was aluminum. It appeared to gotten corrosion down inside the seat tube. I resorted to using penetrating oil, ammonia, apple cider vinegar, cold, heat, pipe wrench and a cheater bar.
Here is a new video that I did:
How To Remove Stuck Seatpost In Minutes With Slide Hammer
• How To Remove Stuck Se...
Removing Stuck/Frozen Seatpost By Cutting With Sawzall:
• Removing Stuck/Frozen ...
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