Blank-sidewall tyre geometry for an RC loader project. Digital files only; wheel, vehicle and printed parts are not included.

MEASURED DIGITAL DIMENSIONS
At the original source coordinates, the mesh envelope is approximately 138.200 × 138.199 × 56.596 mm (diameter axes × width, using the source millimetre convention). These are digital bounds, not physical measurements. The earlier 137 × 54.56 mm label remains in the original filename for traceability; it does not match the supplied mesh envelope. Neither file has been rescaled. Check the wheel interface and dimensions in your slicer before printing.

FILES
Original text STL and a smaller binary STL for the on-demand viewer. Both contain the same 450,318 triangles when represented as float32; no triangles were removed and no scaling was applied.

DIGITAL REVIEW
Both meshes have finite coordinates, closed surfaces and consistent winding. Physical fit, material behaviour, traction and print performance remain untested; no verified printer profile is supplied.