cant find 27.2-)29.8 seatpost shim

dan baker said:

I have been looking all over for 27.2->29.8 seatpost shim without much luck. found some shims on
the canecreek.com site, but not this size. Does anyone have a retail source online for something
like this?

If you can find the appropriate thickness, else you can make it out of thinner layers, a mylar film
would be just great, and inexpensive too.

Sergio Pisa

(dan baker) said:

I have been looking all over for 27.2->29.8 seatpost shim without much luck. found some shims on
the canecreek.com site, but not this size. Does anyone have a retail source online for something
like this?

thanx,

Da

Post Moderne and X-Lite both make this size, so find an online shop that trades with either of these
companies.

Kinky Cowboy

*Your milage may vary Batteries not included May contain traces of nuts.

"dan baker" <[email hidden]> wrote in message
"]news:[email hidden]...

Quoted message said:

I have been looking all over for 27.2->29.8 seatpost shim without much luck. found some shims on
the canecreek.com site, but not this size. Does anyone have a retail source online for something
like this?

Any competent LBS should have a selection of seatpost sleeves to cover unusual sizes. For example,
adding a Campagnolo Carbon post to a werido ID frame upwards of 27.2 is a not-so-unusual application
for a sleeve.

Popular items include the Tamer brand post sleeves which are 26.8 IDx29.8 OD. USE, for example, are
25.0IDx29.8OD. This sort of thing runs $10~$20 depending on brand and material.

Trans-X has a cute continuously adjustable unit that spans a wide range of ODs with a two-part
interlocking sleeve set. ( sorry I am out and can't recall the exact range but 29.8 is within it)

If you want to take that route it is certainly doable although you're adding the cost of the adapter
and the post to the stem.
--
Andrew Muzi yellowjersey.orgyellowjersey.orgOpen ↗ Open every day since 1 April 1971

On 17 Jan 2003 07:42:31 -0800 (dan baker) said:

I have been looking all over for 27.2->29.8 seatpost shim without much luck. found some shims on
the canecreek.com site, but not this size. Does anyone have a retail source online for something
like this?

29.8 - 27.2 = 2.6mm, the diametral difference.

This means that you need material that is half that thick, or
29.1i/.052" to wrap around your post.

Start measuring.

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Jim Adney [email hidden] Madison, WI 53711 USA
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Sergio SERVADIO <[email hidden]> wrote in message
news:<[email hidden]>...

Quoted message said:

dan baker said:

I have been looking all over for 27.2->29.8 seatpost shim without much luck. found some shims on
the canecreek.com site, but not this size. Does anyone have a retail source online for something
like this?

If you can find the appropriate thickness, else you can make it out of thinner layers, a mylar
film would be just great, and inexpensive too.
--------------------

that would be a hell of a lot of layers of mylar! In any case, I would hesitate to do multiple
layers of anything since it would be so much more likely to slip and be a mess to install.

anyway, turns out that cane creek DOES have that size, it just is not displayed on the website
detail page.

Also, I found out that for thin shims not normally offered as post collars, like to go from 28.6 ->
29.8 (.025 inch shimstock and roll your own), you can buy little sheets of AL shim stock from
mcmaster.com tool supply.

d

Jim Adney said:

On 17 Jan 2003 07:42:31 -0800 [email hidden] (dan baker) wrote:
29.8 - 27.2 = 2.6mm, the diametral difference. This means that you need material that is half that
thick, or
1.3mm/.052" to wrap around your post. Start measuring.

No, not necessarily so. Not mandatory to wrap it around the full circumpherence at all. When I made
my shims I made them like so

xxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxx
xxxxxxxxxxxxxx
xxxxxxxxxxxx
xxxxxxxxxx
xxxxxxxx

and I inserted them only as far as needed. Thus, I did not have to have the 'exact thickness' to
start with, since what I gained depended on how much the shim did get into the tube. Later, the part
sticking out was easily trimmed off.

Sergio Pisa

Go to your local bike shop and have them look in the Quality Bicycle Catalog. QBP has a whole line
of nice shims covering almost any situation

Tom @ TET Cycles

18 Jan 2003 11:19:26 +0100 Sergio SERVADIO said:

Not mandatory to wrap it around the full circumpherence at all. When I made my shims I made
them like so

xxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxx
xxxxxxxxxxxxxx
xxxxxxxxxxxx
xxxxxxxxxx
xxxxxxxx

and I inserted them only as far as needed. Thus, I did not have to have the 'exact thickness' to
start with, since what I gained depended on how much the shim did get into the tube. Later, the
part sticking out was easily trimmed off.

I'm not exactly sure what you're describing, but it sounds like a wrapped shim made of thin material
so that the effect is that of a tapered shim.

Any kind of tapered shim won't give you the support that you need to keep the post tight without
excessive tightening and distortion of the seat lug. You really need consistent thickness for about
2-2.5" down into the frame.

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Jim Adney [email hidden] Madison, WI 53711 USA
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