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 Post subject: Re: XTR Thumbshifters ??
PostPosted: Tue Sep 24, 2013 4:44 pm 
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Joined: Sun Mar 01, 2009 2:49 pm
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Location: Boiling in a Bivvy Bag
The DA/Paul is a nice setup.
I do have a long cage Dura Ace 7402 mech and didn't think they were supposed to exist, and I've seen a couple of anomalous Campag mech's - so there is the remotest chance....maybe.. :lol:

Hopefully kase1983 will come and shed some light, since he's apparently seen some....


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 Post subject: Re: XTR Thumbshifters ??
PostPosted: Tue Sep 24, 2013 5:10 pm 
retrobike rider
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Joined: Fri Aug 08, 2008 2:36 pm
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Location: Yorkshire, England
My post seems to have not taken, so i'll try again.

There where adaptors companies made for them. One was a bronze version and they attached on top of the RF mount.
The IPC Convertor.

I've looked for the article this time and it was on mombat
Image

iirc there where also a few others available.


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 Post subject: Re: XTR Thumbshifters ??
PostPosted: Tue Sep 24, 2013 5:56 pm 
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Thought about this once before. I felt that the round body that the wire wraps around should be low and fit into the clamp body in a more streamlined fashion. The lever would be similar to the current XTR ones with the letters cut out.


Attachments:
XTR_thumb2.jpg
XTR_thumb2.jpg [ 155.48 KiB | Viewed 914 times ]
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 Post subject: Re: XTR Thumbshifters ??
PostPosted: Tue Sep 24, 2013 8:23 pm 
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sinnerman wrote:
the closest you will get to my knowledge is a Durace shifter mounted on a clamp, Pauls Etc.


I've just fitted a set of the Durace TT shifters with Pauls clamps to my clockwork in order to 9-speed it.

They do work really well - but the extra arc that the shifter has to turn through to get the extra two speeds makes them slightly less perfect to use than I'd hoped they would be (given the money I spent on them !). It's a minor niggle though.

Image


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 Post subject: Re: XTR Thumbshifters ??
PostPosted: Tue Sep 24, 2013 10:08 pm 
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Nice work!


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 Post subject: Re: XTR Thumbshifters ??
PostPosted: Sat Nov 23, 2013 10:17 am 
retrobike rider / Gold Trader
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A set of those IPC converters have come up on Ebay:

http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ... SS:GB:3160


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 Post subject: Re: XTR Thumbshifters ??
PostPosted: Sat Nov 23, 2013 11:19 am 
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kingoffootball wrote:
A set of those IPC converters have come up on Ebay:

http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ... SS:GB:3160


Rare as hens teeth, I looked for a set for years, no joy and don't need em now.


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 Post subject: Re: XTR Thumbshifters ??
PostPosted: Sat Nov 23, 2013 3:30 pm 
Gold Trader / MacRetro rider
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Lid wrote:
Thought about this once before. I felt that the round body that the wire wraps around should be low and fit into the clamp body in a more streamlined fashion. The lever would be similar to the current XTR ones with the letters cut out.


Agree, thinner yes. Possibly fatter to give more torque :?
You clamp is very modern looking, i will *crit it as possibly being too modern for a thumbie , as in maybe the curving is wrong.
The lettering ? Are you meaning as in stamped or forged in ?



*crit or criticism is a very important part of design. I love crit :D


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 Post subject: Re: XTR Thumbshifters ??
PostPosted: Sun Nov 24, 2013 3:59 pm 
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...the closest to XTR thumbies I've ever seen where these Paul/DuraAce things made by a friend for his lightweight project.... 10 speed and under 100g...


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10 speed thumbies.jpg
10 speed thumbies.jpg [ 55.8 KiB | Viewed 650 times ]
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 Post subject: Re: XTR Thumbshifters ??
PostPosted: Sun Nov 24, 2013 7:30 pm 
Retrobike Sponsor
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dura ace bar end shifters mounted on paul adapter shifting ten speed is what I have.


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