Finding the right seatpost
05-03-17 | 10:59 AM
#26
Prefers Cicero
Joined: Jul 2005
Posts: 12,860
Likes: 146
From: Toronto
Bikes: 1984 Trek 520; 2007 Bike Friday NWT; misc others
The poster in this thread said "almost certainly".
05-03-17 | 05:42 PM
#27
Thread Starter
post tenebras lux
Joined: Jul 2016
Posts: 74
Likes: 0
From: Alamance County, NC
Bikes: Trek 720, Centurion Accordo, Gary Fisher Mamba
Before I purchased the seatpost, I called a Trek dealership and was told the one I got was the one I needed. It's a shame I didn't just carry my bike in and get a little help to begin with. No one to blame but myself.
05-03-17 | 06:06 PM
#28
Junior Member
Joined: Nov 2016
Posts: 170
Likes: 97
From: Southwest TN
Bikes: Specialized Allez, Specialized Rockhopper, '93 Trek 700 M-T, '06 Trek SL1000
I have a 1993 Trek 720 Multi-Track and this is the seatpost that I bought from Amazon and it is the correct size.
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
The size is 26.8mm. I tried a 27.2 and it was too large. I tried the seatpost out of my 1991 Trek 700 Multi-Track which is 26.2 and of course it was too small.
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
The size is 26.8mm. I tried a 27.2 and it was too large. I tried the seatpost out of my 1991 Trek 700 Multi-Track which is 26.2 and of course it was too small.
Last edited by rhenry01; 05-03-17 at 06:19 PM.
05-05-17 | 02:19 PM
#29
Newbie
Joined: Mar 2008
Posts: 57
Likes: 2
Thankfully there are good folks here on the Forums.
Hopefully your woes are over for now. If you find that the tilt of your saddle isn't to your liking your next sesatpost can be a micro-adjustable unit.
It uses two screws to level or tilt the saddle up or down to where you need it. Sometimes the one bolt seatposts aren't always where we would like them adjusted. It also allows you to adjust the saddle out on the road. The experts say to always have your saddle exactly level but I find this differs from person to person. The best advice I can give about adjustments is to ride thirty minutes prior to adjusting anything. Let your body warm up and everything can go well from there.
Hopefully your woes are over for now. If you find that the tilt of your saddle isn't to your liking your next sesatpost can be a micro-adjustable unit.
It uses two screws to level or tilt the saddle up or down to where you need it. Sometimes the one bolt seatposts aren't always where we would like them adjusted. It also allows you to adjust the saddle out on the road. The experts say to always have your saddle exactly level but I find this differs from person to person. The best advice I can give about adjustments is to ride thirty minutes prior to adjusting anything. Let your body warm up and everything can go well from there.
05-05-17 | 03:05 PM
#30
Senior Member
Joined: Jul 2015
Posts: 7,495
Likes: 3,300
From: NW Oregon
Bikes: 1982 Trek 930R Custom, '91 Diamondback Ascent w/ XT, XTR updates, Fuji Team Pro CF road flyer, Specialized Sirrus Gravel Convert, '09 Comencal Meta 5.5 XC, '02 Marin MBX500, '84 Gitane Criterium bike
makes fresh batch of popcorn... waits patiently for more bad info to be posted...
05-06-17 | 09:41 AM
#31
Banned
Joined: Jun 2010
Posts: 43,586
Likes: 1,380
From: NW,Oregon Coast
Bikes: 8
People Should Measure things in person..
Now Seatpost sizing shim sleeves are commonly found, machined,
inside diameters fall into 2 choices 1" 25.4mm.. or 27.2mm..
so there are shims to use a 1" seat post in a lot of different frame ID including 27.2mm
then shims for that or 27.2. to go in oversize seat tube frames...
(I have 3 bikes built up with 27.2mm posts in larger seat tubes..)
....
...
Now Seatpost sizing shim sleeves are commonly found, machined,
inside diameters fall into 2 choices 1" 25.4mm.. or 27.2mm..
so there are shims to use a 1" seat post in a lot of different frame ID including 27.2mm
then shims for that or 27.2. to go in oversize seat tube frames...
(I have 3 bikes built up with 27.2mm posts in larger seat tubes..)
....
...
