Just for my sanity - what kind of gear reductions are you using for your motors?

Our plan is use a 48 tooth gear off the 16 tooth
cluster, and take that directly to a chain sprocket
for a further 2 fold reduction to the wheel.

This should add up to about a 20 fold reduction -
Using an 8 inch wheel I predict our speed to be 3 fps.

What are you guys clocking in at?