Road Bike Wheel Size Circumference
Since the tire wraps around your rim the wheel diameter includes the tire on both sides thus the multiplication by 2.
Road bike wheel size circumference. Hi i am beginner planning to buy cycle 5 7 ft height 32 leg size which wheel base would suit me 26 or 27 5 though planning for mountain bike most my trails will be on mud and rough roads and bumpy ride. Etrto tire size l mm l cm inch 47 203 12x1 75 935 94 54 203 12x1 95 940 94 12 40 254 14x1 50 1020 102 14 47 254 14x1 75 1055 106 40 305 16x1 50 1185 119. With a 622 mm bead seat diameter the 700c wheel is the most common tire size found on nearly every production road bike. And even if it was you d have to subtract the amount that it flattens.
And tire diameter the size of your tire converted to millimeters wheel diameter rim diameter tire diameter 2. Trying to find proper circumference for 700c wheel with 25 mm tires i have a 700c wheels and run 25 mm continental gp4000s tires. You are getting lots of bad advice. The radial amount is 3mm which will reduce the circumference by 19mm.
A 20mm supersonic is only 2060. I doubt that your tire is really 2130 in circumference. Wheel circumference wheel diameter pi. A gp4000s is tall for a 23mm and it s only 2090 on an xr270 rim.