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May 01 2009

20″ 406mm Tires Database

Posted by Michael Slater in Measurements
I was in North Asia this week. I bought samples of all the 20″ tires I could find in Tokyo and Taipei.

Today I weighed them to see how they compare with each other.

Schwalbe’s tires are always the lightest in their widths.

Japanese-made Panaracers are most weight-consistent. I was surprised to see that individual tires of the same model could differ in weight by up to 20g.

It looks trivial to shift away from my 630g kendas to something closer to 200g. That would be 1 pound per tire savings! Not to mention what savings I get from a narrower rim and fewer spokes.

I haven’t ridden any of the tires yet. I was unable to find narrower rims. I’ll have to have some rims shipped here.

tire database plot
Rims (click for fullsize)

Sheldon Brown has a complete listing of all wheel size standards, as well as a guide to which tires fit which inner rim diameter.

This entry was posted on Friday, May 1st, 2009 at 4:55 pm and is filed under Measurements. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

One Response to “20″ 406mm Tires Database”
  1. Silver Case » Bicycle puttering says:
    May 10, 2009 at 7:16 pm

    [...] the heavy Kenda tires and put a Schwalbe Marathon Racer on the back and a Continental Contact on the front, just for something different. I went out on a testing and calibration ride. I hit a [...]

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