Well I've got a few months searching time so after a decent looking laning-capable road legal 50cc bike for Troy who will be 16 in August.
Ive already been keeping an active eye open for Rieju and Aprillia trail/enduro bikes - but they are quite rare. Ideally want it 2nd hand and up to 5 or so years old. Don't care if destricted or not.
So if you know anyone who may be looking to sale in the near future then please let me know.
He's so looking forward to green laning this year -- but he's going to be in for such a shock as usually rides a very quick 150XC for his off roading.