I've seen inline skates (for speed skating mostly) in a wide variety of set-ups w/r/t wheel diameter:
- OOOO: 4x100; 4x110 (typical)
- OOO: 3x110 (a Powerslide model)
- OOoO: 3x100+1x90; 3x110+1x100 (again some Powerslides)
- ooooo: 5x80 (I used to see some setups like this)
I assume the bigger the wheels, the better - in general.
The justification for setup 3 seems to be to lower the skater's center of gravity while keeping most wheels big. Does this really make a difference?
How does wheel count affect performance? My intuition fails me here- less bearings seem to imply less friction, but OTOH more stress on each bearing could result in more friction overall. What's the rule here? What's the profit from using a 3-wheel setup instead of a 4-wheel setup?