Hi Rik, I have 6,8 & 9 year old kids, the 6 year has been on a beta 50 for about 1 year and doing fine, he is almost ready to move up to the GasGas 80 (clutched, small wheeled )he has had a few rides on it but likes the beta 50 better, I would say he will riding the 80 full time In the next 6 ...