motorcycle grip 3d model

A highly detailed, ergonomic motorcycle handlebar grip, modeled directly after the two-part, dual-layer design seen in the referenced image. The entire grip has a total vertical height of exactly 122mm. The main cylindrical grip body has a texture of a fine, diamond-pattern knurling, with a constant outer diameter of 28mm for the gripping surface. At the bottom, a distinct, thick, and large donut-style flange (washers) flairs outwards, with a final outer diameter of 60mm. The top cap is simplified and solid, with no texture. The grip features a central, hollow inner core with a consistent, empty cylindrical passage of 21mm in diameter, suitable for a 21mm handlebar insert. The design features sharp, clean edges between the main black body, the inner core, the pink-colored top cap band, and the pink-colored inner flange band. The output should be a clean, geometric 3D model, perfect for a high-quality STL export.