seat pin collars

For discussions about bikes and equipment.
tim-b
Posts: 1192
Joined: 10 Oct 2009, 8:20am

Re: seat pin collars

Postby tim-b » 28 Jan 2020, 10:43am

Hi
It's a plain 27.2 (the lip was filed off) it locates the seat so you could at least sit in an emergency
Regards
tim-b
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Brucey
Posts: 37331
Joined: 4 Jan 2012, 6:25pm

Re: seat pin collars

Postby Brucey » 28 Jan 2020, 1:47pm

mig wrote:
got 1.5 million pairs of socks, no jubilee clips. :D

.


I'm surprised no-one has suggested stuffing the seat tube full of socks....

cheers
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~~~~~~~~~~~~~~~~~~~~~~Brucey~~~~~~~~~~~~~~~~~~~~~~~~

pwa
Posts: 11661
Joined: 2 Oct 2011, 8:55pm

Re: seat pin collars

Postby pwa » 28 Jan 2020, 2:12pm

Looking at the Thomson site (I think their collars are better than most) their sizes go up in steps of 1.2mm or more. I reckon I could tell which I needed by measuring carefully with a ruler. 1.2mm difference is very visible.

mig
Posts: 2158
Joined: 19 Oct 2011, 9:39pm

Re: seat pin collars

Postby mig » 28 Jan 2020, 2:58pm

Brucey wrote:
mig wrote:
got 1.5 million pairs of socks, no jubilee clips. :D

.


I'm surprised no-one has suggested stuffing the seat tube full of socks....

cheers


it crossed my mind yesterday.

bit 3 bears this. 28.6 too small. 31.8 too big. 29.8 juuuust right. i think you were correct there upthread.

tim-b
Posts: 1192
Joined: 10 Oct 2009, 8:20am

Re: seat pin collars

Postby tim-b » 28 Jan 2020, 6:59pm

Hi
Now that I'm home the 27.2mm clamp is a specific accessory clamp, the bike with a larger seat post has a modified seatpost clamp as shown below
Regards
tim-b
bracket.JPG
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