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beatty
Simon-
from what brian and I determined last night, they have the chiaphuas (and possibly bosches) powering the caterpillar drive with an egg-shaped gear like you mentioned. Also, we thought that the shock absorbers probably have near frictionless surfaces for easy sliding. I also think that they have some motors powering the back wheels for turning- I would think that turning is good. These are probably geared high for speed, like we were at first.the only disadvantage I can see is that they start vertical- it will be interesting to see how long it takes them to fall.
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