CATEYE PADRONE SMART
CATEYE STRADA SMART
Determining tire circumference
Determine tire circumference (L) by referring to the tire size chart or by measuring the actual circumference of your bicycle tire.
Tire circumference reference table
* The tire size or ETRTO code is indicated on the side of the tire.
Measure actual tire circumference
With tire air pressure adjusted appropriately, apply a load to the bicycle.
Using the valve, etc., as a marker, rotate the tire once and measure the distance traveled along the ground.
When using front wheel for speed measurement
When using rear wheel for speed measurement
