what's the advantage of a 3 wheel pushchair?

[Autumn2014]

I know most all terrain pushchairs have 3 wheels, but why? What makes them better than 4?

a 3 wheeler has fewer points of contact with the floor so will be more stable on uneven terrain. hth

I also find my 3 wheeler extremely manouverable in tight spaces!

My Mountain Buggy is brilliant to push through snow, sand, mud; easy to steer round town but not so easy to get up and down pavements

I love mine. It's so much easier to steer one handed while holding onto a toddler's hand.