[Lil' Lavery]

Originally Posted by LWS

A good bit of the discussion seems centered on how effective the design is in getting all of those wheels to work (e.g. no chains, etc). The real question it seems is, why have all of those wheels? The only effective answer I have seen so far is to avoid "high centering" when going up ramps.
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Don't forget lesser weight (and a more even distribution of weight) on each wheel. This means that less force passes through each wheel, meaning a lesser chance of failure (especially of items such as treads...or the carpet they touch).