The internal diameter of your rim where the spoke nipples sit.

Total number of spokes in your wheel.

Example: 32h → enter 32.

What it is: How many times each spoke crosses others on its way from hub to rim 3 most common

Front Wheel

front Flange Diameter

front Center to Flange

Diameter of the hub flange from opposite spoke holes center to center

Front Spoke Length

Rear Wheel

Left Flange Diameter

Right Flange Diameter

Center-to-Left Flange

Right Center-to- Right Flange

Center point of hub to inside of flange on non gear side

Center point of hub to inside of flange on gear side

Rear Left Spoke Length

Rear Right Spoke Length