Small Seat Post, Welded on Seat (Help)

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10/5/2015 2:57 PM
Edited Date/Time: 10/5/2015 3:03 PM

First of all HELLO guys, my name is Vic and I jumped on here to see if there was a solution for a problem I am having. I bought a Redline PL-24, love the bike, the only issue is that the seat is tiny as hell. I wanted to throw on a bigger seat to cruise parks.

Problem 1: Post is smaller than all the modern type seat posts (smaller in width diameter), my local bike shops basically turned me away and said there's nothing that can be done

Problem 2: The seat is welded on, so it's not like I can buy a seat for this seatpost

It's silly to sell the bike just because I won't be able to buy a seat I like for it. Yes, the seat is that bad. Isn't there any type of smaller seatposts that can handle modern seats? I don't know the exact width of the seatpost still trying to find that out, but its definitely smaller than the current modern BMX size.

I really want to keep this bike, thanks in advance. Photo

Photo

Photo

Would something like a flutted seat post do the trick? for example:
http://www.ebay.com/itm/VINTAGE-GODELTA-BICYCLE-27-2-MM-FLUTED-ALLOY-220-MM-SEAT-POST-/151820626089?hash=item235936e8a9


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10/5/2015 3:47 PM

Find out what the measurement for the diameter of the seatpost is (sometimes it is stamped into them) and then find one that matches. 22.2 is common with smaller (Mini/Junior) sizing, 25.4 is pretty standard in freestyle, however some of the XL/XXL race frames have a 27.2 or 31.0. Have a better local shop (ideally not the one you went to) measure it IN MILLIMETERS if it is not printed on the post, and find you a replacement seat and post. (You will need both, that is a seat/post combo and you can't separate and change out one or the other).

It also looks like there is a shim in your seat tube of your frame (the black thing the seat post slides into) which if removed could change things.

You could measure the INNER DIAMETER of where the seatpost goes into the frame AFTER REMOVING THAT SHIM, and then see the correct size for your frame. It looks like someone changed it to a seat/post from a Micro/Mini sized bike.

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"Hey anybody ever make that mistake like right when you wake up in the morning and you believe in yourself?" -Kyle Kinane

"BIKES!" -Tom Segura

10/6/2015 1:15 AM
Edited Date/Time: 10/6/2015 2:17 AM

Thanks for the response Dave,

I removed the shim but it didn't make enough difference to fit a regular size bmx post. I measured it here (couldn't find a measuring tape in Millimeters) The size was not listed on the post

Photo

Would this be 20.2mm?

wonder if this would do the trick
http://www.amazon.com/gp/product/B000A5MKCQ/ref=s9_simh_gw_p200_d0_i1?pf_rd_m=ATVPDKIKX0DER&pf_rd_s=center-2&pf_rd_r=0BZ67PSDVP53S5HBVWJ7&pf_rd_t=101&pf_rd_p=1389517282&pf_rd_i=507846#customerReviews





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10/6/2015 6:03 AM

That would fall around the 22.2 sizing from what it looks like (7/8ths approximately) but without that shim you would want to measure the inner diameter of the seat tube (where the post goes into the frame) and match that up so you don't need the shim.

Pivotal- https://www.danscomp.com/products.php?attribute=seatposts&by=NAME&order=ASC&cat=PARTS&group=BMX%20Pivotal%20Seat%20Posts&size=22.2

There are a bunch here (link above) that should match up that post you have size-wise, then you would just need a pivotal seat to go along with it. Any one of the seats linked below would work with the posts above.

https://www.danscomp.com/shop-PARTS/group/BMX+Pivotal+Seats.html


Just a matter of finding what you like.

Your linked post should work, you would then need
http://www.amazon.com/Velo-Seat-Clamp-Standard-Saddles/dp/B001GSKUAK/ref=pd_sim_468_1?ie=UTF8&refRID=1ZM0SSRJNT6NQACJWMMJ&dpID=419Fk5Zs5SL&dpSrc=sims&preST=_AC_UL160_SR160%2C160_

and a seat with rails on the bottom.

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"Hey anybody ever make that mistake like right when you wake up in the morning and you believe in yourself?" -Kyle Kinane

"BIKES!" -Tom Segura