The Tamiya 70251 Rubber Band Powered Trike is an educational model aimed at hobbyists and learners who want a hands-on example of mechanical principles. The build encourages experimentation with energy and gearing.
The trike measures 193mm by 72mm by 94mm, providing a solid platform for display and testing. A rubber band propulsion system uses a push rod to set tension so the conversion from stored energy to motion is easy to observe.
This kit includes two gearing arrangements: a 9:1 power ratio for quicker runs and a 27:1 stamina ratio for longer travel, allowing users to compare how gear ratios affect acceleration and range.
The assembly is a mix of snap-fit and screw-mounted parts and will require basic tools to complete. The kit comes with five No.14 rubber bands and will also accept No.16 bands for alternative performance trials.
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