Thanks angrybadger... look at what you made me do:If it helps at all, here's the little fella at Lysty on a cruzee. Running air tyres, but it doesn't make a real difference (only weight). He's 3.5, been on it since about Christmas 2013, and he still whinges on the uphill part of the same trail even though the bike weighs about the same as a cotton bud. He'll be going straight from the cruzee onto a 16" early rider belter, but I reckon he'll keep riding the cruzee on rough terrain while the pedal bike gets used on smooth places.
Seriously though, it was your post and video that tipped me over the edge. Grabbed it at lunchtime today and he wanted to play with it all afternoon. By about his fourth or fifth go he could stand and walk/scoot on it. This is before he is even walking properly (he can take a couple of steps before falling over). He has no idea how to turn or steer, and the seat is slammed for him to use it, but thats ok.
Great buy. :first: