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rim notation
Today I saw a rear wheel rim with the
Torpedo 1SP hub. On the rim are the digits 20-635 18/8 * 20 can be the inner rim width in mm * 635 is most likely the rim diameter and familiar ISO/ETRTO tire designation, also in mm * 18 could be the number of spokes, as the rim has 36 spokes (360 degree wheel) and 18*2=36 - but, the sprocket is 18T, so maybe that is it? * 8 - the sprocket diameter in cm? If so, the "18T theory" is more likely. -- underground experts united http://user.it.uu.se/~embe8573 |
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