Newbie wheel question

I agree.  Though I often wonder what the trade off is.  Reduction of rotating weight is important.  Would the smaller wheels be faster over the average, because you are reducing the diameter?  Think of it this way.  You have a 2 lb. weight on a 1 foot long rope.  You swing it in a circle, like a windmill.  Now keep the weight the same, but increase the rope length to 2 feet.  It's a lot harder to swing (accelerate) but the speed of the weight at the end of the rope is faster for the same number of RPMs.  I should have paid more attention in physics class 40 years ago!

Max