Big pipe..little hole
#1
:jarckass:
Thread Starter
Join Date: Aug 2006
Location: Nashville
Posts: 6,562
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
Big pipe..little hole
Sounds like fun but maybe not. 26.8 seat post in a 27.2 hole.
Will it work or do i HAVE to have a shim?
Thanks
Will it work or do i HAVE to have a shim?
Thanks
#3
Senior Member
Join Date: Feb 2006
Location: Boise, Idyho
Posts: 676
Bikes: '04 fisher 29er, NYC Bikes CityFixed
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
shim or get the right post.
You will compress or ovalized the seat tube trying to keep the 26.8 in there tight.
You will compress or ovalized the seat tube trying to keep the 26.8 in there tight.
#4
:jarckass:
Thread Starter
Join Date: Aug 2006
Location: Nashville
Posts: 6,562
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
Thanks for the comments. Normally id get a new post. The seat post is a Sugino Mighty NJS post so i really wanna be able to use this thing. I looked for a shim yesterday and couldnt find one. Ill look more.
thanks
thanks
#5
Taking "s" outta "Fast"
Join Date: Dec 2005
Location: Zoo York City
Posts: 1,989
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
yea, you'll end up hurting the frame. Unfortunately the only shim's I've seen for that combo are "cone" types with a lot of excess shim popping over the seat tube, but then again, I haven't looked super hard.
#6
LF for the accentdeprived
Join Date: May 2005
Location: Budapest, Hungary
Posts: 3,549
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Soda can? I *think* it should work, shouldn't it? Untidy but better than pinching the frame together.
#7
aka mattio
personally, i wouldn't risk messing up my frame or having an unstable seatpost interface just to have the right stylish seatpost in there.
#8
jack of one or two trades
Join Date: Jun 2005
Location: Suburbia, CT
Posts: 5,640
Bikes: Old-ass gearie hardtail MTB, fix-converted Centurion LeMans commuter, SS hardtail monster MTB
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Sell it to the poor bastard who has a nearly complete NJS setup and just needs that 26.8 post. Then buy a Kalloy and a pound of weed.
#9
antisocialite
Join Date: Apr 2006
Posts: 3,385
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
Originally Posted by Aeroplane
Sell it to the poor bastard who has a nearly complete NJS setup and just needs that 26.8 post. Then buy a Kalloy and a pound of weed.
cheap seatpost that fits > grand mighty seatpost with shim > ****ed up frame
#10
Triathlon = Eat/Bike/Nap
Join Date: Sep 2006
Location: Pixxxburgh, PA
Posts: 1,100
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Originally Posted by Aeroplane
Sell it to the poor bastard who has a nearly complete NJS setup and just needs that 26.8 post. Then buy a Kalloy and a pound of weed.
#11
:jarckass:
Thread Starter
Join Date: Aug 2006
Location: Nashville
Posts: 6,562
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
Originally Posted by dirtyphotons
cheap seatpost that fits > grand mighty seatpost with shim > ****ed up frame
#12
Tiocfáidh ár Lá
Judicious cutting of a beer can ought to work, has for me for years in the past.
#13
:jarckass:
Thread Starter
Join Date: Aug 2006
Location: Nashville
Posts: 6,562
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
Originally Posted by jfmckenna
Judicious cutting of a beer can ought to work, has for me for years in the past.
#14
Strange As Angels
Join Date: Nov 2006
Location: Longmont, CO
Posts: 465
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
It WILL slip no matter how much you crank it and this can possibly damage the frame so do not do it.
I probably have a post I can sell cheap or trade if you want
I probably have a post I can sell cheap or trade if you want
#15
cxmagazine dot com
Join Date: Jun 2003
Location: WI
Posts: 8,269
Bikes: Titus road, Fort CX
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
where is the proof that a shimmed seatpost will screw up your frame?
Yes - get the right thing the first time, but if deathhare wants to keep the seatpost, a shim might work. I have seen a good number of bikes with seatpost shims (the USE Alien suspension posts required one for certainm size frames) without any ill effects.
https://images.google.com/images?svnu...=seatpost+shim
the hard part on this request is finding a 26.8 to 27.2 shim...
biketoolsetc and loosescrews have nothing in that range and it appears to be fairly uncommon.
Yes - get the right thing the first time, but if deathhare wants to keep the seatpost, a shim might work. I have seen a good number of bikes with seatpost shims (the USE Alien suspension posts required one for certainm size frames) without any ill effects.
https://images.google.com/images?svnu...=seatpost+shim
the hard part on this request is finding a 26.8 to 27.2 shim...
biketoolsetc and loosescrews have nothing in that range and it appears to be fairly uncommon.
#16
:jarckass:
Thread Starter
Join Date: Aug 2006
Location: Nashville
Posts: 6,562
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
Thanks, yeah i checked two shops today and they said a shim that thin doesnt exist. Maybe so cause
.4mm is pretty damn thin. That would mean the walls of the shim would need to be .2mm....thinner than butter.
Maybe ill give the ole Asahi shim a try.
.4mm is pretty damn thin. That would mean the walls of the shim would need to be .2mm....thinner than butter.
Maybe ill give the ole Asahi shim a try.
#18
hunter, gatherer
Join Date: Feb 2005
Posts: 1,183
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
no one makes a shim this close for seatposts..
you need a shim .2mm thick (it's a circle, remember)
you can try a can.. or even buy some shim stock, but then you'd be spending money you might as well spend on the right post
whatever you do, don't overtighten the binder if your post is slipping.. that's how seatlugs get cracked all the time
you need a shim .2mm thick (it's a circle, remember)
you can try a can.. or even buy some shim stock, but then you'd be spending money you might as well spend on the right post
whatever you do, don't overtighten the binder if your post is slipping.. that's how seatlugs get cracked all the time
#19
antisocialite
Join Date: Apr 2006
Posts: 3,385
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
Originally Posted by [165]
where is the proof that a shimmed seatpost will screw up your frame?
cheap seatpost that fits > grand mighty seatpost with shim > ****ed up frame
but i was referring to his question:
Originally Posted by deathhare
Sounds like fun but maybe not. 26.8 seat post in a 27.2 hole.
Will it work or do i HAVE to have a shim?
Will it work or do i HAVE to have a shim?
the worst idea would be to clamp a 27.2 clamp onto a 26.8 post with no shim. not only does it deform your seat tube, but it puts uneven pressure on your seatpost, causing you to have to torque it down even harder to keep it from slipping. i've cracked a seatpost and stripped an internal seatpost binder bolt this way, but of course, your results may vary.
with a shim there is less contact area and unless it's cut PERFECTLY it will probably scratch your seat tube. i still believe that a cheap seatpost that fits would be superior to a nice post with a shim. but a shim is better than a ****ed up frame. that's all i was saying.
#20
cxmagazine dot com
Join Date: Jun 2003
Location: WI
Posts: 8,269
Bikes: Titus road, Fort CX
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
it's all good
I am 100% of the school of getting the right thing first. But sometimes there are ways to correct things without replacing them, and if this is done incorrectly, problems are imminent
I am 100% of the school of getting the right thing first. But sometimes there are ways to correct things without replacing them, and if this is done incorrectly, problems are imminent
#21
dutret has a posse
Join Date: Jul 2006
Location: washington dc
Posts: 3,155
Bikes: IRO Angus 53, Marinoni Special 54, LMNO Custom Road Bike, Guerciotti TT, Late 60s Bottechia Road, Univega Via Montega beater/polo/rain bike.
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
> means greater than, not leads to. i read it the way photons intended.
nitto makes handlebar shims for putting 25.4 bars in a 26.0 stem. super thin, i think you might be able to find it.
of course, for the amount of money you payed for the frame, i would also find a proper seat post for it. trade or sell yours and buy a new seat post in the right size, njs approved if you MUST have that.
nitto makes handlebar shims for putting 25.4 bars in a 26.0 stem. super thin, i think you might be able to find it.
of course, for the amount of money you payed for the frame, i would also find a proper seat post for it. trade or sell yours and buy a new seat post in the right size, njs approved if you MUST have that.
#22
....
Join Date: Jul 2006
Location: Philly
Posts: 157
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
I would be worried about there being a few different metals touching each other. Ones going to expand at a different rate than the others leaving you with a stuck seat post.
#23
★ ★ ★
Join Date: Oct 2006
Posts: 2,073
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Originally Posted by Smorgasgeorge
That's what she said
thank god this thread isn't in the roadie forum...
#25
cxmagazine dot com
Join Date: Jun 2003
Location: WI
Posts: 8,269
Bikes: Titus road, Fort CX
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 1 Time
in
1 Post
Originally Posted by ryand
> means greater than, not leads to. i read it the way photons intended.