Rear Stroller Wheels question

Does anyone know about this subject? Is it better to have 4 back wheels or 2? Better if they're smaller or larger? What makes you think so?


I wound up with a 2001 Combi Savvy Z b/c it was an excellent purchase on eBay. Turns out the stroller was in EXCELLENT condition.

The reason I chose this stroller over certain others is b/c of the wheels. I have this notion, for some reason, that 4 back wheels are better, or easier, or something, than just having 2. I don't know why I feel this way.

Maybe it's b/c most of the expensive brands have 4 rear wheels while the less expensive ones (Evenflo, Graco) only have one. I seriously considered the Chicco Ponee but I beleive it had 2 rear wheels.

Appreciate any thoughts :)