Go Back  Bike Forums > Bike Forums > Classic & Vintage
Reload this Page >

S12S LTD Fuji 18 speed Seatpost question

Notices
Classic & Vintage This forum is to discuss the many aspects of classic and vintage bicycles, including musclebikes, lightweights, middleweights, hi-wheelers, bone-shakers, safety bikes and much more.

S12S LTD Fuji 18 speed Seatpost question

Old 06-05-23, 09:38 AM
  #1  
etherhuffer 
Senior Member
Thread Starter
 
etherhuffer's Avatar
 
Join Date: Aug 2007
Location: West Seattle
Posts: 1,420

Bikes: Surly Long Haul Trucker,81 Fuji Gran Tour SE, 83 Fuji S12S LTD, Voyageur 11.8 chrome, Raleigh R300 Touring, Voyageur 11.8

Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 283 Post(s)
Liked 494 Times in 226 Posts
S12S LTD Fuji 18 speed Seatpost question

Getting down the end of a rest-mod 650b conversion. Quite fun! I need a seat post for this and was looking at old posts. Looks like these use 26.6 posts, the original being an SP-H..
This is a 25" frame and I am wondering what my post length should be. I am over 200 pounds as well, if that matters. I read that too long and you can get binding in the tube, too short you can bend a spot.
I don't need an OEM post, Just need the right post diameter with good adjustability. Any help appreciated
etherhuffer is offline  
Old 06-05-23, 10:37 AM
  #2  
Piff 
Senior Member
 
Piff's Avatar
 
Join Date: Nov 2013
Location: Southern California
Posts: 1,626
Mentioned: 14 Post(s)
Tagged: 0 Thread(s)
Quoted: 780 Post(s)
Liked 727 Times in 401 Posts
Don't overthink this, the seatpost length. Just get a seatpost that's the right diameter, and long enough such that the minimum insertion line is inside the seat tube. Measure what you need (crank to seatpost rail clamps) on another bike, and then figure out what length seatpost would work well for you on the S12.

Tons of Laprade seatposts out there in varying lengths and diameters...but for top-shelf adjustibility you'll want something like a Shimano 600/dura ace, campy 2-bolt, or any of the campy copies out there. Likely not a huge number of top-shelf seatpost made for 26.6 I would assume? 26.8/27.0/27.2 are more common. I'd get a laprade and call it a day. It's surprisingly easy to get sucked into researching a little too much into something that just needs to hold your @$$ steady and safe.
Piff is offline  
Old 06-05-23, 10:43 AM
  #3  
etherhuffer 
Senior Member
Thread Starter
 
etherhuffer's Avatar
 
Join Date: Aug 2007
Location: West Seattle
Posts: 1,420

Bikes: Surly Long Haul Trucker,81 Fuji Gran Tour SE, 83 Fuji S12S LTD, Voyageur 11.8 chrome, Raleigh R300 Touring, Voyageur 11.8

Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 283 Post(s)
Liked 494 Times in 226 Posts
Originally Posted by Piff
Don't overthink this, the seatpost length. Just get a seatpost that's the right diameter, and long enough such that the minimum insertion line is inside the seat tube. Measure what you need (crank to seatpost rail clamps) on another bike, and then figure out what length seatpost would work well for you on the S12.

Tons of Laprade seatposts out there in varying lengths and diameters...but for top-shelf adjustibility you'll want something like a Shimano 600/dura ace, campy 2-bolt, or any of the campy copies out there. Likely not a huge number of top-shelf seatpost made for 26.6 I would assume? 26.8/27.0/27.2 are more common. I'd get a laprade and call it a day. It's surprisingly easy to get sucked into researching a little too much into something that just needs to hold your @$$ steady and safe.
Cool. Plus, the fluted posts look really nice. 26.6 is indeed an oddball size
etherhuffer is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.