Saddles & Seatposts

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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 have gotten corrosion down inside the seat tube. I resorted to using …Read more »

How To Remove Stuck Seatpost In Minutes With Slide Hammer

I show how to remove a seized seatpost from a bike frame using a 10lb slide hammer. I borrowed the slide hammer from a local auto parts store after paying a deposit. Be sure to get a 10lb slide hammer as I don’t think a 5lb slide hammer will deliver enough force. The aluminum seat …Read more »

Seatpost Size – From Wrong To Right

I replace an incorrect sized seatpost with a correct size seatpost for the frame. I bought a nice Koga Miyata bike, but it had a dirty old steel seatpost which was obviously not the correct post. And it looked like the diameter was too small since the seatpost clamp look a bit tight. I measured …Read more »

How To Make A Quill Seatpost/Expanding Seatpost

I show how to make a quill/expansion/wedge seatpost. Quill seat posts were found on some bikes in the 80s including Schwinn aluminum road bikes (564, 684, etc) from the Paramount Design Group (PDG). But they were prone to cracking. Replacements are expensive and hard to find. I bought the parts to make mine on ebay. …Read more »

Cheap Easy Tool To Clean Inside Bike Seat Tube

I show how to clean rust and corrosion from the inside of a bike seat tube using a cheap and easy to make tool. This is useful for cleaning out a seat tube after removing a seized seatpost. There is often ugly oxidation left over from the galvanic reaction between the aluminum seat post and …Read more »