What's the absolute minimum amount of seatpost that is safe to have in the seat tube?
#1
Senior Member
Thread Starter
Join Date: Aug 2005
Location: Austin
Posts: 2,104
Bikes: Too many to count
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
What's the absolute minimum amount of seatpost that is safe to have in the seat tube?
Just wondering what the minimum amount of seat post I can safely have in the seat tube? If a seat post if listed as 250mm, is that 250mm from the top to the minimum insertion line?
#2
Senior Member
Join Date: Jul 2006
Location: Jacksonville, FL
Posts: 6,864
Bikes: Trek Domane SLR 7 AXS, Trek CheckPoint SL7 AXS, Trek Emonda ALR AXS, Trek FX 5 Sport
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 760 Post(s)
Liked 1,717 Times
in
1,003 Posts
look on the bottom of the post and make sure the safe mark is not showing. That would be the amount.
#4
Low car diet
Join Date: Aug 2007
Location: Corvallis, OR, USA
Posts: 2,407
Bikes: 2006 Windsor Dover w/105, 2007 GT Avalanche w/XT, 1995 Trek 820 setup for touring, 201? Yeah single-speed folder, 199? Huffy tandem.
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 4 Times
in
4 Posts
The length of the seat post is generally measured from the saddle clamp to the very end, which includes the part that must be in the frame. A 350mm post I have has about 100mm between the minimum insertion line and the end, so the saddle rails could only be up to 250mm above the seat tube.
Last edited by JiveTurkey; 06-08-08 at 12:51 AM.
#5
Pwnerer