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 Post subject: Re:
PostPosted: Tue Apr 21, 2020 10:58 am 
Retro Guru

Joined: Sat Apr 15, 2017 12:26 pm
Posts: 714
Location: Lost now on the country miles
One USE 25.0-->30.4 shim please. PM incoming.


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 Post subject: Re: Re:
PostPosted: Wed Apr 22, 2020 12:32 am 
Old School Hero

Joined: Mon Jul 24, 2017 5:42 am
Posts: 218
Location: The centre of time
blue2256 wrote:
Ultimate sports engineering ltd USE Seatpost shim NOS
USE shims are CNC machined to a high tolerance
Aluminium shims are anodised to reduce weight
large diameter shims are machined from filled engineering thermoplastic
it is therefore unnecessary to grease to stop slipping between post and shim
25mm to 25.58, 26 x 3, 26.2 x 2, 27, 27.2 x 2, 27.6, 28.2, 29.2 x 3, 29.4, 30 x 2, 30.4 x 3,30.6, 30.8, 31.8 x 4, 32.2
27.2mm to 32.8mm
£5 each

How doe the shim sizing work? I have a hole for a 27.0 post so what does it become with the shim?


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 Post subject: Re:
PostPosted: Wed Apr 22, 2020 1:43 am 
Retro Guru

Joined: Sat Apr 15, 2017 12:26 pm
Posts: 714
Location: Lost now on the country miles
Seat tubes vary in diameter - yours is 27.0, mine is 30.4 - but USE seatposts don't, at least not back in the day: they were all 25.0. So, you have your bike and a seat post that is too narrow for it and you use a shim in the seat tube to create a snug fit for your seatpost. In your case, given an old school USE seat post, you would want a 25.0 to 27.0 shim. Or you can look at it the other way around, and say that you're using a seat tube reducer, in effect, to shrink your seat tube's opening from 27.0 to 25.0.


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PostPosted: Sat Jul 04, 2020 9:23 am 
Old School Hero

Joined: Fri Jul 24, 2015 12:55 pm
Posts: 189
Location: Sussex
Bomp


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 Post subject: Re:
PostPosted: Sat Jul 04, 2020 9:39 am 
Retro Guru

Joined: Wed Jun 28, 2017 9:41 am
Posts: 324
Location: Ponte-Carlo
Off to do a stock take of my own USE shims to see what I need :-)

Also - have you still got the Middleburns?

Back in a bit, ta.


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PostPosted: Sun Aug 02, 2020 9:45 am 
Old School Hero

Joined: Fri Jul 24, 2015 12:55 pm
Posts: 189
Location: Sussex
Bump


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PostPosted: Sun Aug 02, 2020 10:45 am 
Retro Guru
User avatar

Joined: Mon Mar 23, 2009 9:27 pm
Posts: 2009
Location: Sunny S Wales!
Do you still have a 27.2?


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PostPosted: Thu Sep 24, 2020 5:50 pm 
Old School Hero

Joined: Fri Jul 24, 2015 12:55 pm
Posts: 189
Location: Sussex
Bump


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PostPosted: Wed Sep 30, 2020 3:14 pm 
Dirt Disciple

Joined: Sat May 30, 2020 11:50 pm
Posts: 15
Hi. I'd like the Shimano ST-EF20 brifters if they are available. I cannot pm (not enough posts) so would be grateful if you could email me avidfan @hotmail.co.uk
TIA


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PostPosted: Wed Sep 30, 2020 5:20 pm 
Old School Hero

Joined: Fri Jul 24, 2015 12:55 pm
Posts: 189
Location: Sussex
PM sent


avidfan wrote:
Hi. I'd like the Shimano ST-EF20 brifters if they are available. I cannot pm (not enough posts) so would be grateful if you could email me avidfan @hotmail.co.uk
TIA


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