the picture below is zoomed x5 you can see the normal area's where the supports are required for a complex 3d part,  we do are best to situated supports in places with the least impact on the model. On the Mondo wheels you can see the support base is hidden at the back of the wheels.

We  3D print  our Products using PLA+ filament , on a optimal setting to give the best results in quality. Some small imperfection and slight Discrepancies and prep may accuir given the nature of 3d printing. All 3D printed Product can be sanded painted to a high standard, how ever Rocky goat racing and reactive terrain  do there best to keep the product as hight standard as possible.