40mm OD Semi tire and wheel

thingiverse

Replacing a damaged or worn-out tire on a model semi is a relatively straightforward process that requires some basic tools and materials. To begin, locate the 4mm shaft that serves as the axle for the semi's wheel assembly. This shaft is typically secured in place with hot glue, which can be easily melted to allow for removal. To facilitate the replacement of the tire, heat the 4mm shaft using a hair dryer or other heat source until it becomes pliable and easy to manipulate. Once the shaft has been heated, carefully push the wheel into the body of the semi further than its original position to create space for the new tire. The width of the new tire should be approximately 11mm, while its diameter is around 23mm. Ensure that these dimensions align with those of the semi's wheel assembly before proceeding with the replacement.