Blue Mountain Bicycle - Native OBJ and Display STL

OVERVIEW
A complete detailed mountain bicycle with two spoked wheels, tyres, frame and fork, handlebars, saddle, pedals, chain, gears, cables and kickstand. The original OBJ independently reopens with nine scene meshes and 215,140 triangles. These are scene/material groups, not nine certified printable parts. All original numerical vertices, UVs, normals, face records, smoothing and component relationships are preserved.

PROPOSED FINISH AND IMAGE
The illustration shows a proposed blue frame, black tyres, grips and saddle, with metallic wheel and drivetrain details. The complete bicycle is assembled and upright, with both wheels below the frame. One common rigid rotation and uniform display normalization position the entire scene; individual components have not been rearranged. This is a suggested miniature finish, not a verified manufacturer specification or a photograph of a physical print.
The original MTL was not supplied. The neutral material file is an explicitly identified earlier generated fallback, not recovered original paint. Its numerical properties remain exact. Private presentation material slots are cloned to apply the proposed colours without changing source geometry, UVs or numerical face material indices. The proposed paint is in the cover illustration; the download retains its neutral fallback rather than promising those illustration shaders.
Blender renders the actual complete source geometry and an illustrative board. Local-PC AI provides an empty workshop background only. All 254,953 protected opaque bicycle/board pixels remain exact and edges use the original render alpha. Image AI does not generate or reconstruct the bicycle. The board is scenery, not an additional promised printable part.

FILES AND DEPENDENCIES
The package includes the native OBJ, its linked generated neutral MTL, the retained full 215,140-facet STL display export, this English guide, a CC0 notice, cover and integrity index. All download filenames use new opaque identifiers. Extract the complete ZIP and keep the OBJ and MTL together with their relative names unchanged. No supplied functional texture bitmap is required; the reference photograph stays private.
The two existing ZIP download links are both retained for compatibility and now contain the same complete revised package. The standalone OBJ and full STL links are also retained. Earlier archive geometry was reconciled: their OBJ and neutral MTL payloads match the earlier standalone resources, and the earlier archive STL matches the retained standalone STL. The STL retains every facet, normal, vertex coordinate, order and attribute byte beyond its neutral header. Its earlier display orientation is retained independently of the native OBJ coordinate system. A separate reduced browser preview does not replace either full download.

Untested source geometry. Confirm slicer units, open boundaries, overlaps, thin features, wheel details and adjacent clearances. The upright display STL is normalized for viewing; use full-resolution source for fabrication checks. No verified physical scale, print preset, mechanical movement or assembly fit is claimed.

Prepared for display and download. No physical print has been certified.