With some clever design it's not necessarily more expensive to build (although design is also expensive). So long as your ground clearance is adequate, lower is better, but I agree that the effect of CoG is negligible at utility-bike speeds.
@lae started
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With some clever design it's not necessarily more expensive to build (although design is also expensive). So long as your ground clearance is adequate, lower is better, but I agree that the effect of CoG is negligible at utility-bike speeds.