Have questions or want to discuss cycling? Join Now or Sign In to participate in the BikeRide community.


Odd size seatpost..
#1
Hello folks. Here's my problem. My seatpost diameter is 25.6mm. I want to replace it with a longer post. All I can find online is 25.4mm or 25.8mm. Any suggestions as to what I should do?

  Reply
#2
You can get a shim that will go in the frame and let you use a smaller post. But I did a search for "25.6mm seatpost" and saw a couple shops that carry them. It's best to use the right size.

  Reply
#3
Thanks again Dave, I'll try that search. I guess you can tell by my posts that I'm making a few mods to my bike. :lol:

  Reply
#4
I've had very little success in finding a 25.6mm seatpost, only one site so far, and just one offering. Has anyone tried a post that's only ".2mm" different in size, as in 25.4 or 25.8? (not necessarily those specific sizes, mind you)

  Reply
#5
I agree with DaveM, it is best to use the same size, as .2mm will make a difference. It may be too tight and get stuck in your frame, or it'll be too loose and you'll have to stress the frame to tighten it. If you can't find the right size, try finding a smaller diameter post that will work with a seatpost shim.
  Reply
#6
Well, after some diligence I was able to find an alloy post that I'm satisfied with. I appreciate the feedback on this issue, thanks guys. Consider this problem solved. Big Grin

  Reply


Possibly Related Threads...
Thread
Author
Replies
Views
Last Post
 
57,806
10-21-2012, 07:19 AM
Last Post: FredS
 
14,517
07-25-2012, 10:58 PM
Last Post: Bill
 
11,070
05-27-2012, 04:12 PM
Last Post: Ryan
 
11,468
02-03-2011, 03:19 PM
Last Post: DaveM
 
15,405
12-30-2010, 11:29 AM
Last Post: sidmarx
 
Guest
15,751
07-19-2008, 06:59 PM
Last Post: Guest

Forum Jump:

[-]
10 Latest Posts
Are you mainly into Mountain Biking, Roa...
Today 11:08 AM
Are 26" really dying out?
Today 11:02 AM
Wanted | Magura Louse or Julie rear
Today 04:03 AM
Hatch Chiles Rule!
11-09-2026 04:56 PM
Should eBikers have to get an eBike lice...
11-09-2026 05:21 AM
How Bad Are E-bikes By You?
11-08-2026 10:29 PM
Shortness of breath.
11-08-2026 09:56 PM
Hello All
11-06-2026 09:03 AM
I don't usually wear a bike helmet. Does...
11-06-2026 02:48 AM
Chain skips under heavy load when pedall...
11-06-2026 02:44 AM

[-]
Join BikeRide on Strava
Feel free to join if you are on Strava: www.strava.com/clubs/bikeridecom

[-]
Top 5 Posters This Month
no avatar 1. Flowrider
25 posts
no avatar 2. meamoantonio
11 posts
no avatar 3. ReapThaWhirlwind
11 posts
no avatar 4. GirishH
10 posts
no avatar 5. Jesper
6 posts