Please help me with stem selection...
#1
Thread Starter
Senior Member
Joined: Sep 2008
Posts: 1,230
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From: Miami, FL
Bikes: 2007 Giant Cypress DX, Windsor Tourist 2011
Please help me with stem selection...
I have a Windsor Tourist from bikesdirect.com. I want to replace the stock stem with a Nitto Technomic. Do I need the 25.4mm version, or the 26mm version?
#2
Senior Member


Joined: Feb 2004
Posts: 30,225
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From: St Peters, Missouri
Bikes: Catrike 559 I own some others but they don't get ridden very much.
1 measurement is worth 1,000 guesses.
1. Wrap a piece of paper around the shank of your stem and mark where it overlaps.
2. Measure to the mark in millimeters.
3. divide by 3.14.
1. Wrap a piece of paper around the shank of your stem and mark where it overlaps.
2. Measure to the mark in millimeters.
3. divide by 3.14.
#3
Senior Member
Joined: Nov 2009
Posts: 2,025
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From: Boston area
Bikes: 1984 Bridgestone 400 1985Univega nouevo sport 650b conversion 1993b'stone RBT 1985 Schwinn Tempo
I think the bar that you are using should be measured, not the stem. 26mm and 25.4mm refer to the interior diameter of the clamp, not the outer diameter of the stem. But you can use that method to measure your bar diameter at the clamp. I'm not familar with the term shank in reference to a quill stem.
#4
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Joined: Oct 2007
Posts: 5,773
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From: West Yorkshire, United Kingdom
The 25.4mm / 26mm for Nitto stem refers to the handlebar size, nothing to do with the fork / steerer tube, your handlebar should have the size stamped / printed on it, match to that.





