Quote:
Originally Posted by Burning Pines
What are you even talking about? 650b is objectively smaller than 700c. The rim diameter is literally different.
Paceline: come for user ultegra cranksets, stay for a multi - post argument about how numbers are meaningless.
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Yes a 650b rim is smaller than a 700c but 650b tires are bigger than 700c tires. So the outside diameter of both tires are about the same. According to a Cateye computer tire size chart, a 650b X 38 tire has a circumference of 2105 mm. A 700c X 25 tire also has a tire circumference of 2105. Doing the math that gives them a radius of 335mm. That 335mm is the distance from the center of the hub to the outside of the tire that a toe wants to miss.
So, Burning Pines, the main point of my post was to explain that many people like yourself falsely believe that 650b tires are smaller than 700c tires when in fact they are about the same size (unless one is using fatter 700c tires). I wanted to point this out so that one would not make the mistake of believing a 650b tire gives more toe clearance when in fact they do not.