Instruction: Analyze a question and its supporting document. Predicting answerability based on the information provided in the document. Output yes if the document contains relevant information to answer the question, otherwise output no.

Input:
Question: what is the post diameter? will it fit any bike?
Document: Seat post was probably .1mm too wide in diameter. Not anyone's fault, just trying to relace a post in an older bike. Actually fit after taking a belt sander to it!
I bought this post to convert an old style Raleigh one inch diameter post for a new saddle. The seat post works fine. I had to shorten it by 6 inches to fit in the vintage Raleigh downtube. 1" diameter seat posts are not easy to find.
It's a seat post. It's light. It looks good. Plenty of adjustability -- the seat angle and distance can both be varied easily. My only problem was that it was just a smidge too small in diameter for my bike frame, which required a very slight, quick modification to my frame to allow the seat post clamp to close more. (Ground off a small tab at the tube's notch - nothing drastic.) Great buy!
Its a bike post. It was 2&#34; too long so I had to saw it short. Don't order unless you are willing to cut off a piece to fit your needs.
Very pleased with quality of seat post extension; fit easily and allowed my 11 year-old son to use his BMX bike at least 1 more year. Strong. Exactly what was needed; price was very fair. Not easy to find anywhere else!
Same result.I am 100% sure that there are no bulges, bends, or hangups in either of the seat posts to interfere with the insertion of the seat post. I have also gotten the diameter of the seat tube measured at a bike shop, so I know it's the correct size.Very disappointed in this product. For reference, the bikes are 1987 Trek 400's. Looks like I'm off to eBay to find a vintage seat post with the correct sizing.Also, this seat post is extremely long.
I ordered this seatpost to replace a suspension-style seatpost on a Mongoose mountain bike. The original post on the  Mongoose was too tall for my daughter to use (the bike was being handed down from my wife to my daughter) because of the built in "shock absorber" that sits above the seat tube. The original seatpost was also super heavy. (I'm thinking of keeping it as a club for self-defense purposes.) This M-wave seatpost fit well and is quite light for the price.
Great seat - pretty comfortable, and easy install - just check the post diameter with your bikes.
This is a great way to replace a suspension seat post to see how it feels without spending a lot of money.Post has a good tilt-adjustment mechanism. Very flexible with a full range of forward/backward tilt without affecting the forward/backward lateral position of the seat. (Unlike theAvenir Ultralight Seat Post, Silver , 27.2mm diameter. ).It feels heavy to me. But, I don't have much experience with other rigid seat posts. And, no accurate scale.
Oh, wait... Was I supposed to put a SEAT on there, too?! Silly ol' me... It fit and felt so perfectly -- who could know?!? !
Answer: yes