This is more reference to myself, but others may find it useful. Here are the measured diameters of the bike tires which I own:<\/p>\n
· Continental Travel Contact<\/a><\/b> (26″ x 1.75″ \/ Wire Bead) @ ~55psi: 2027mm<\/b>
\n· Specialized The Captain Control<\/a><\/b> (26″ x 2″ \/ Aramid Bead) @ ~40psi: 2110mm<\/b>
\n· Specialized Fast Trak LK<\/a><\/b> (26″ x 2″ \/ Wire Bead) @ ~45psi: 2104mm<\/b>
\n· Nokian Hakka W300<\/a><\/b> (26″ x 2.2″ \/ Aramid Bead) @ ~35psi: 2099mm<\/b>
\n· Kenda Nevegal<\/a><\/b> (29″ x 2.2″ \/ Folding) @ ~40psi: 2303mm<\/b>
\n· Specialized The Captain Control<\/a><\/b> (29″ x 2″ \/ Aramid Bead) @ ~30psi: 2285mm<\/b>
\n· Schwalbe Racing Ralph<\/a><\/b> (29″ x 2.4″ \/ Folding) @ 27psi: 2316mm<\/b>
\n· Nokian Gazza Extreme 294<\/a><\/b> (29″ x 2.1″ \/ Wire Bead @ ~30psi: 2278mm<\/b><\/p><\/blockquote>\nIn case you are wondering why I’d measure this, these numbers are needed in order to calibrate a bike computer so that it may be reasonably accurate in measuring speed and distance.<\/p>\n
The measurement was taken by rolling the tire (fitted to the wheel and inflated as listed) along the basement floor and measuring with a metric tape measure. Yes, I know the diameter will vary some as the tire is slightly flattened while rolling, but finding that variance will require some long distance straight line riding with a GPS and then a comparison. I may do that later on the smooth tires (Travel Contact), but not on the knobbies.<\/p>\n","protected":false},"excerpt":{"rendered":"
This is more reference to myself, but others may find it useful. Here are the measured diameters of the bike tires which I own: ·…<\/p>\n