Tire Size Question
#1
Tire Size Question
My 7 year old son has a Mirraco Icon with the stock 20x2.125 tires, Alex C303 rims. He's going to try his first triathlon in about a month, and I'm looking for some faster street tires to put on for the triathlon (just a 2 mile bike ride). Would 20x1.5 (40-406) tires fit on his rims? Like these:
https://www.biketiresdirect.com/pkekw...a_kwest/pp.htm
Or do you have any better suggestions?
Thanks!
https://www.biketiresdirect.com/pkekw...a_kwest/pp.htm
Or do you have any better suggestions?
Thanks!
#5
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Join Date: Apr 2009
Location: near Pittsburgh, PA
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They will work. 406 is the ISO diameter of the rim and 1.5, 1.75, 2.125 and so on are all 406's. Just watch you don't buy 1-1/2" even though 1.5 equals 1-1/2. When it comes to tires, fractions and decimals don't mix. Our race bikes use 1-1/4" and 1-3/8" tires. They are totally different.
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