i bought one for my lad when he was 5, back then ( 3 years ago ) i think halfords were selling them and they were widely available on ebay for the same price anyway.
my lad loved it but it was bloody loud and a lot of mum's turned their noses up at him riding it on the school run but at least they shifted out of the way when they heard him coming
![Grin ;D](http://www.radbmx.co.uk/forum/Smileys/smilies/grin.gif)