Tamiya 89903 Mechanical Racehorse Finished Model - STEM Series Collector Display  [89903]

Mechanical Racehorse overview

The Tamiya Mechanical Racehorse finished model is a completed entry in the STEM Series that showcases basic mechanical principles in an easy-to-inspect format. Its finished state makes it suitable for both display and hands-on observation of moving parts.

Design details and operation

The model pairs front rollers with rear leg grips to combine stable guidance with traction. The rear grips are adjustable for different running surfaces, and the link rod holes on the back legs let you switch between two movement patterns for varied motion.

Technical features

Powered by a Type 130 motor and matched to a 16.6:1 gear ratio, it will climb modest slopes like those on small junior circuits. The straightforward screw assembly and exposed wiring keep maintenance simple. It requires one R6/AA/UM3 battery, not included.