An 1:8 scale model of a 20" bicycle wheel for the Velo-Hawk conceptual velomobile design model (illustration above), which uses a 3/16” thick x 2.00" ID O-ring to represent a 1.5" tire. The axle diameter for the model is .062" (representing .5" full scale) and because of the 3D printing process, will require some re-drilling by hand to clear overflow material. The hub cover can be made from a 1/4" dia. piece of stiff colored, reflective and adhesive back material. Because of the model design, two wheels are included for both left and right sides --- one is rotated to provide the opportunity to select the best quality exterior finish. Thank you for visiting the NRB Spatialty shop!