Removing Stuck Seatpost With Homemade Seatpost Puller Tool - Test 2 - Success!!! 

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Truely inspiring. Your sense of innovation, patience and resilience is unmatched. Thank you RJ.

It's always so satisfying when a stuck seat post finally comes out.

Awesome! As someone who has battled and lost to more than one frozen seatpost I am totally digging this thread. Thank you for the inspiration!

Thanks for the video. I had the same problem with the seat post, but no welder. I broke the seat post off just above the frame while trying various methods. I was able to grind down the diameter of some 1/2 inch washers, then slid them up the seat tube and engaged a nut into a length of allthread to catch under the seat post. I added the weight from a slide hammer over the allthread, then added washers and a nut for the stop. Worked great with less effort than I expected. I also had to drill out a couple of rivnuts for the bottle cage to get the washers past, but luckily you also have a video on installing those. Maybe Park could make some plugs with an ID thread and a cutout to clear the rivnuts. A few different sizes for different seat tube diameters. Keep up the good work.

Oh man I just made a tool like yours and then my friend said to check out your video. The tool works! I do agree adding a handle would help for control and safety. I do like yours in that it is very heavy duty and the extractor section that connects to the seatpost is nice or what I need to build. Hearing the pop was victory!

So me and my dad got my seat post out and found out that someone had cut the seat post down to fit them on a xl frame. Which made it extremely hard to get out. With some cursing and swearing plus pb blaster and a blow torch we got it out. It literally had a 6 inch post and we were baffled at the bike I had gotten for free. I'm glad that we had a steel pipe that was the exact diameter of my seat post because when we went to use a port a power the seat mount that was apparently glued in with some sort of glue popped out and we popped the part into the new steel pipe. Thank you for your videos and support on how to and diy repairs!

Yeah! That is a fricking satisfying sound! Great job RJ! I bet Park Tool will be coming out with a design like this one any day now! LOL.

Park Tools ain't got nothing on RJ........RJ makes the tool that makes the tool to do the job.

Awesome videos, and even more awesome tools by the master mind him self, RJ The Bike Guy. You need to patent that tool ASAP.

If you are worried about the galling on that washer replace it with a drilled piece of the steel tube. If you want the closest fit you sneak up to it with an adjustable mechanical reamer. Cool tool, reminds me of things I've made for various automotive work. On the technique I would first use your tool to push it in before trying to remove it. I have better luck with this technique on seized joints. It doesn't need to be much. I'll share with you the best of the best techniques I know of from a mechanical guy who could do anything. ( He welded a hand trike up for his paralyzed son. Coolest thing I ever saw as a kid! ) You heat the joint then pull it away and apply beeswax (toilet bowl gaskets are a cheap source) and it sucks it right in there and acts like a lubricant and its amazing how well it works on rust (our state uses salt so we become experts on this while working on our vehicles). If you ever do rebuild it consider using something like an air chisel to vibrate that joint out of there. They can handle things that it normally takes a full out machine shop type hydraulic press to remove. Last note: I wouldn't try pulling on that extension of the seat post for two reasons: A) It's the obvious weak spot because it does a 90 right there B) If you look closely you see a line down the middle of it which is proof that it is casted metal. While casted metal is very strong it is also very brittle and when brittle metal breaks it is often razor sharp. It's just not worth the risk to your own body by a sharp piece of metal alloy when a seat post is basically a cheap item. Also that seized dark spot is a likely place for tetanus to reside. I've been told by ER folk (when getting evaluated for getting a tetanus shot because I couldn't get them for other medical reasons) if the metal is fresh its rarely a risk but metal that has been sitting around for a long time in the rust is more likely to have it.

This was more tense than a lot of thriller movies out there.

Just amazing how resistant the stuck seat post was. Thanks!

That was so satisfying hearing it pop! Great job RJ, love your homemade tools. Still use the one to remove stuck BB cups that you showed us how to make.

Nice job on the seat post extraction tool! May wish to grease the threaded shaft to prevent galling and at the base of the nut/washer to reduce friction. A hardened grade 8 washer, or 2, will also make it easier to tighten. The In addition, once tension is applied to the shaft a few raps with a hammer may facilitate release of the stuck post. Where are you located I have a few stuck posts...?

This geezer did a great job in making that extraction puller tool. If worried about the possibility of threads stripping, always use a finer threat to alleviate the risk. Great video, & safe methodology adopted here.

Nice! that first pop sounded like the bottom bracket had cracked...very ingenuous idea RJ...

Fascinating. Loved the multiple booms as it let go. I wasn't expecting that. The whole time I was wondering about frame damage..props for examining that at the end.

I’m sure I’m not the only viewer to shout “GET IN YOU BEAUTY” when you got it it out. Top work, as always, RJ.

Love it. When I was a kid I rode my Raleigh Ultra Burner through the local river. After the seatpost welded itself. My dad tried heating, wrenching, wd40, hammering etc. It didn't budge. Had to scrap the bike. Your contraption would have been a life saver. Cheers you've earned yourself a new subscriber.

Am I the only one who would love to see a carbon frame being ripped apart by this frame torture device?

Congratulations! This is the tool for for the job! I spent days fiddling with spanners, blowtorches and hammers to extract one seized seatpost. I would have been quicker building that tool and removing the seatpost even if it was just for one time. By the way you could put a flat ball bearing under top nut to reduce draging

Great job!! I cheated when I needed to get a post out. I made a solution of lye. It worked really well. I protected the paint by using rubber corks on all the frame tubes (inside and out), taped a home made funnel to the seatpost opening, then covered the entire frame with plastic drop sheeting, kept a loaded garden hose at my side.

use a thrust bearing under the washer. That will help reduce the friction when tightening

Agree with all the improvements and dangers for use. At the very least you have broken new ground....good job.

Nice job. Never underestimate a man with a spiral inclined plane...or a dremel tool. Keep the videos coming. And I wouldn't worry about the washer, just replace with each use.

RJ you deserve one medal great job mate 😀.

That's a terrible joke! I resent you for making me pause the video just to read that...

why is that stuff in the middle always perfect in line, i see pepsi etc. btw i am a huge fan from holland, dont get me wrong, i have 6 bicycles no car i am 59, keep it up please those videos

Maybe weld a washer to the coupler... I think it will be better than replacing it with a larger nut.

wow! you are the Archimedes of bike repairing

Undo the bottle cage bolt, turn upside down, inject Coca Cola, leave overnight, normally gets em free👍

Very impressive construction rj, i would try a axial bearing instead of the washer, and i would grease the threads.

for frozen parts I starting using the tapping like tapping the jar lid idea and that might help.

I think this would work with some type of clamp surrounding the post. And in the front steel fork as well for pulling a stuck quill also. Just in case you want to save the part like in some classic old steel bikes. Brilliant design I must say, RJ.

The tool you make is just work well. Amazing.

What a cool idea! Struggling with my seized seatpost since april.

The position of your left hand while you are cranking on that is giving me the heebie jeebies!

Haha, great! this tool is awesome! cool thinking. I have 3 steel bikes with aluminium seatpost, after seeing this video, i immediately checked if none of those where bonding, luckily not, used enough grease for now! cool video, thumbs up!

Excellent video, a true inspiration. I think you could either aluminum braze or tig weld an aluminum plug into that hole, and reuse that post.

As for the rod nut, you could try to use two washers with grease or better yet. Using a small trailer wheel bearing, or something like that. By getting rid af all that friction would make the job so much easier.

Feb. 27th is your ”lube your seatpost day” every year, worldwide.

Wow it's really hard to imagine just how tight the thing is

I like those DIY tools... Your brain is working! Thanks for sharing

That's a brilliant idea. I'm happy you mentioned the plan for a handle because I was really concerned the threaded rod would snap while your fingers were less than an inch away.

Those knocking sounds are pretty satisfying.

That’s excellent. I wish I could weld one up!

Interesting build.... I would definitely watch using it on aluminum frames

The absolute in seat post removal technolgy!

4:26 A pedestrian steps off the curb and into the road without looking and promptly gets knocked flat by a passing cyclist. "You were really lucky there." says the cyclist. "What on earth are you talking about! That really hurt!" says the pedestrian, still on the pavement, rubbing his head. The cyclist replies, "Well, usually I drive a bus!"

You should be called RJ the amazing bike guy. My Chief at work deals with the same problem nearly everyday and can't get them all out👌

Surprised me a bit... Even after the initial pop... and it broke loose... it still wasn't giving up easy...

I have to admit that I wouldn't have the balls to try this twice, as it reminds me of trying to compress coil springs from a auto suspension. This was awesome nonetheless!

Deep socket with air impact wrench 👍

You were making me super nervous putting your hand in "firing line" as you were. But i figured if you lost half your fingers this video would not be posted lol. I was thinking what if we cut off the seat post, take a die and cut threads into the post, put a bearing and then a washer and nut onto the stem and screw it down against the frame? Using a spacer of the correct length you could even use an impact gun on the nut. Of course the seat tube can't t be reused, but I think that might work if its not stuck to bad. All the load would be in compression with exception of the threads inside the nut so no risk to other parts of the frame.

grease the threads rj , it will turn a bit easier. also under presure you can tap it some. great tool .

I really could need that! NICE Idea!

I wished you lived close to me here in SE Michigan. I would love to rent out this tool to free up a seatpost for a project for the wife

Nice homemade tool. Also like they way you hand chop when you speak and surprised that you got shoes on. Thank you and have a great day.

Good job 👍 I move my seatpost every so often to make sure its ok..

I had a battle with a seat. I did this because I didn't care about the seatpost. My method was turning the bike upsidedown. Mark a line so you can see if you make progress. I used release spray periodically for a few hours beforehand. I used 2 claw hammer to then beat the shit out of the bottom of the bike seat on the metal part. It worked after smashing it for maybe 20 minutes. Hope you can hit in the same spot over and over again. I switched between left and right side evenly.

Did somebody else see the hidden one frame story at minute 4:26? In deed pedestrian was lucky 😂

Brilliant! Satisfaction level 1000!

that tool is BOSS!!

Fighting a stuck seatpost is war. And you are now a four-star general.

this is awesome... y think another option could be putting the force in the head of the seatpost tube (you won´t mind damagin other parts of the frame). you can use the seatpost clamps as a top... just saying. i think it could work

"I usually drive a bus". Nice one. I thought my eyes were playing tricks on me.

Glad you didnt crush the frame :) Steel is real!

I know this video is 5 years old now, but heavy grease on the threads would go a long way. Also, for the top nut/coupler, you can use two washers with grease between them, to maybe prevent that gouging.

That's a really good tool you invented there.maybe you can make a patent and get it into a set and sell em to bike store's

I salute your genius sir.

Since you are able to pull up using the puller, I wonder if a few hit on the post with a small sledge hammer down into the frame just to get the grip to break, then pulling might become easier. Just a thought.

This a really cool tool you made, a high lift jack works the same way just invert the frame in a pro park professional bike stand and reverse the jack rathchet cranking it down while standing on the heavy steel plate.WD40 RUST REMOVAL is what i use to eat thru the corrosion.

Save yourself a bunch of time. Soak it with penetrating oil for a few days. Drill a 5/16-3/8” hole in the seat post and put a grade 8 bolt and nut through it and tighten. Lay the bike on its side and use an air hammer against the bolt head in the same direction it needs to come out. Takes 2 minutes. Works like a charm. Good luck.

I just picked up a 1985 Trek 520 from the original owner. The seat post has been locked in place since the bike was new in 1985. Oh yes it is really stuck bad.

Great simple and robust design. Look forward to seeing future testing.

What about threading the center of the seat post with an internal thread tap to install a large bolt and pull and turn on it that way?

Very interesting build. You never gave up

Nicely done! The weakest link is the threaded rod and nut. I would use a high tensile, and if you wanna go to town with it - a thrust bearing under the nut.

I dont understand english very well, but I learned a lot just by looking, you are a genius👍

Eres super ingenioso, te felicito.

Thought to make one but supplies are very expensive. They are large pieces of steel. I'm building one with materials I had sitting around including 1 1/2 steel conduit.

Nice looking retro bike, I have a similar looking M.B.K. frame with low rear brake.

Big fan of these videos! 🎉 Whats the most economic way to pull stuck seat post out?

Working very good...

I take my hat off to you sir with all these seat post challenges great work and funny message. All the best Andy

Good job,but you should tap slightly on horizontal tube also with non metal hammer

I was waiting for a disaster to happen with all that pressure building. You holding between the tool frame and puller mechanism, bolt going 'snap' and hand crushing between or something. Anyhow, I would've needed this thing last year. That particular frame with its seatpost is still in my way on the corner waiting for more acid bath, drilling and honing.

With all the force along the long side tubes of the tool, it may be worth welding a couple of flat bar braces between/across the long tubes at a couple of points along their length to preclude any buckling of the tubes under load.

Pouring boiling water over the post worked for me. The heating and cooling of the metal helps expand it and loosens the seatpost.

Awesome idea! As for the last part, any time I've tried applying force to the head of the seatpost, it just pops the head off. I'd stick to drilling the post itself.

Looks like a great way to crack a weld.... or warp your bb

Hi Rj. What passes through the bottom bracket? Won't the pulling force damage the threads?

What a great device...nice work RJ.

U are a genius man good job

" I highly recommend this device for all bicycle frames ti , steel , carbon and aluminum"- show us your success videos !!! - yes really , can't wait !

Nice☺ Some knocking in seatpost with the hammer while nut turning should help.

Great job RJ. Need a tool , make a tool

Works better then the sawalls from the other video... interesting that you mention higher end bikes who are made with lighter materials this tool might snap those bikes in half

Great tool, I'm going into the garage to make one!