Wheel diameter = (rim diameter) + (tire diameter * 2). Wheel circumference = Wheel diameter * PI.
The difference in wheel diameter causes the footprint of the bigger wheel's tire to be more
So when I saw all these different tire sizes, I assumed they all required a different wheel size, but in fact, there is essentially just one wheel diameter for my type of bike, which they refer to as 700C...
What are the differences between these 700c X 35-40mm wheels and tires and 650B X 47mm wheels and tires? Wheel diameter is a very noticeable difference...
Because the 26" wheel has a diameter that is 11% smaller (559mm vs 622mm bead seat diameter)
Do you really care that 700c wheels have a bead diameter of 622mm?
The table below shows the difference between 650c and 700c wheels. Wheel size: Bead seat diameter, mm Overall diameter, mm Overall radius, mm Tyre circumference, mm.
“Everyone should ride 700c wheels…” “Everyone knows that 650c wheels are more aerodynamic!”
But are those issue enough to keep people from riding 26″ wheelsets?
This has led some to assume that 700c wheels may be faster or better because they are bigger.