Any advice on sizes? Kids bikes appear to have confusing names and numbers that don't mean anything until you look them up, if we're onthe hunt for a s/h that makes life challenging.
I have found great bargains locally on Face Ache market place. Frog and Isla bikes are expensive 3nd hand as they hold their value by name. The Carrera Cosmos (£200 new)is very good, light and reasonably specified. As it's not yummy mum recognised, being a H*lfords own brand it is often to be found in the £50-60 bracket 2nd hand.