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PostPosted: Mon Feb 18, 2013 8:41 pm 
retrobike rider
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Joined: Wed Mar 03, 2010 11:59 am
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Location: Near Southampton
So I've noticed an extra shift position on my front ST-M092 XT gear shifter.

- Click 1 from granny to middle ring
- Click 2 moves the front mech up by about 2-3mm
- Click 3 from middle to outer ring.

Anyone else get this? It's actually very helpful as it allows "not perfect" front mech alinement! For example when in the middle ring at the front and 11T on the back and there's just a slight bit of rubbing on the front mech cage? Step forward extra click your time is now! It doesn't try to go into the outer ring just moves the cage slightly...

Any thoughts appreciated!

Wook


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PostPosted: Mon Feb 18, 2013 8:49 pm 
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Location: Llantwit Major
4x10 speed?


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PostPosted: Mon Feb 18, 2013 8:52 pm 
retrobike rider
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Logic.Al wrote:
4x10 speed?



Going to be a real skinny extra ring to squeeze in there! :lol:


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PostPosted: Mon Feb 18, 2013 8:54 pm 
Old School Grand Master

Joined: Tue Oct 09, 2007 1:55 pm
Posts: 8202
Location: New Forest, UK
The higher- end ones always had a half-click for trimming, the cheap stuff just the basic three positions. Indexing the front is still a daft idea though!


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PostPosted: Mon Feb 18, 2013 8:57 pm 
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Knew I read about it before, it's a "trimming" feature to stop rubbing :wink:

http://www.retrobike.co.uk/gallery2/v/Manufacturer+Archive/Shimano+Archive/Service+Manuals/st-m090+st-m070.JPG.html?g2_imageViewsIndex=2

Image


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PostPosted: Mon Feb 18, 2013 10:26 pm 
retrobike rider
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lrh wrote:



Nice one perfect what a handy feature!


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