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Old 07-21-17 | 05:24 PM
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HillRider
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Joined: Aug 2005
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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!

Originally Posted by SylvainG
. Why two different 26" sizes (559 and 590)?!?
As noted there are more than two "26 inch" bicycle tires and there are at least two "20 inch" bike tires (ISO 406 and ISO 451). Bike tires sizing is a study all of it's own.
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