How Are Stems Measured???
07-22-08 | 08:49 AM
#1
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From: Kentucky
How Are Stems Measured???
I'm thinking about replacing the stem that came stock on my Trek 820 with one that's a little longer in order to improve comfort with my new trekking bars. I know I'll need a mountain-bike specific stem due to bar diameter, but I don't really know how long my present stem is, or what size to buy, because I don't know how they are conventionally measured.
How are stems measured - center of steering tube to center of bars?
How are stems measured - center of steering tube to center of bars?
07-22-08 | 08:52 AM
#2
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From: Pittsburgh, PA
Bikes: '96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '20 Surly Midnight Special, All are 3x10. It is hilly around here!
07-22-08 | 02:41 PM
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From: Corvallis, OR, USA
Bikes: 2006 Windsor Dover w/105, 2007 GT Avalanche w/XT, 1995 Trek 820 setup for touring, 201? Yeah single-speed folder, 199? Huffy tandem.
If you don't want to do the trigonometry yourself, this chart is really helpful: https://www.habcycles.com/fitting.html It gives you relative rise and reach of stems based on their angles and lengths.
