This is my Rendition/Remix of the Bearing Bike Remix by Dusan_Cut, https://www.printables.com/model/60382-remix-of-bearing-bike-02a-from-luu-lac I Printed the Body and Wheels scaled up 220% and the Tires scaled up 219% to be a little tighter, this seems to be about the perfect size. I printed the body with PLA at 100% infill (to withstand the Grand Kids), the Wheels with PLA at 15% infill and the tires with TPU at 5% infill. Print the Body Flat, I used supports at a couple spots (should be pretty obvious where).
UPDATE:
Scaled up Version (220%) can be found here -
https://www.printables.com/model/989587-bearing-bike-remix-scaled-up-220
and here -
https://www.thingiverse.com/thing:6747077
The author remixed this model.
This is a Remix of the Remix of Bearing Bike 02A from Luu Lac. I modified the steering to take up the slack, modified the look of the wheels and widened the rear wheel and tire slightly.