25.0 mm non-Shimano Japanese Seat Post 70/80?

[kingbling]

Posted non-shimano Japanese....... That's Japanese but not Shimano?

:facepalm:

 

[latman]

there were a few , I had a carbon over alloy Sugino 75

 

[FL44]

there were a few , I had a carbon over alloy Sugino 75

Thanks for the hint!

Has come across to my knowledge a couple of days ago. Finding one patience is key, isn’t it? Though aesthetically a aluminum post would better fit my project.

P.S.: Seems like could be a SR make for Sugino?

 

[torqueless]

Re:

I think both SR(Royal) and Sugino(Mighty) did a copy of the Campag. 1044 two bolt post, but that might be too 'old school' for you- late '70s rather than 70s-80s. The Suntour post that preceded the one in your OP pic. was I think a rebranded Sugino.

Any alloy post, preferably one without flutes, can presumably be lathed down to 25mm by an engineer. You could pick up a badly scarred 27.2mm (or whatever) cheap, and get it machined down as good as new possibly for less outlay than forking out for a pristine post in a rare/unobtainable size.

 

[latman]

a thick walled 27.2 mm post could be turned down to make a nice 25mm , just weaker.

 

[FL44]

Thanks for your thoughts!

Actually I would have a 25mm early 80‘s Campag SR that I can use. A Japanese make other than Shimano would just suit better the project I’m working on.

 

[Little Al]

Buy a high end 26 or 26.4mm from a Cycle jumble that some one has see sawed it in the frame & as said get it turned down to 25mm

 

[FL44]

Buy a high end 26 or 26.4mm from a Cycle jumble that some one has see sawed it in the frame & as said get it turned down to 25mm

Thank you for your thoughts!

I’m not looking for any 25 mm seat post. There are quite some options available, vintage and new, and affordable. Also, as mentioned I do have a 25mm Campag SR that I could use. So, why would be a DIY post a good option then? Maybe I missing your point? Could you explain?

I’m looking for a non-Shimano, Japanese make from late 70 / early 80 as the mentioned SunTour SP-2100 (SP-SB00).