In this schematic the "Nipple-spoke" is used most often.
A sample from the products for the Tires include: Tire,fr,100/90-17 55s, Spoke-inner,rr,82mmx1, Balancer-wheel,30g, Rim,fr,17xmt2.15.
The component with the lowest price in the TIRES schematic is the Nipple-spoke.