Originally Posted by
popcorns
Hello,
I just bought a Bike Computer but I've stuck at the part with the inches. My tire has so many numbers.. But i've no idea what all these mean. If you could help me by telling me which of that is the inches.. I googled it but I didn't find a solution..
So, here is the numbers:
Pressure 40-65PSI 2.8-4.6kgf/cm2 280-460 KPa (56-559) 28x1.95 k-849-010
Simply measure the diameter of your rear tire in
inches, multiply that diameter by
25.4, then multiply that by
pi (which is
3.141592653) and it will derive the required 4 digits to enter into your bicycle computer
.