My autistic, adhd, laryngiomalasia, sleep apnea, amongst other things, five year old son used to love to try ride his little three year old trike. My five year old is four foot three now and it's big and he needs a new bike.So we can get out and explore.I would love for him to try to ride.And I would love to try to teach him to ride.But I don't want him out riding and alone 

My autistic, adhd, laryngiomalasia, sleep apnea, amongst other things, five year old son used to love to try ride his little three year old trike. My five year old is four foot three now and it's big and he needs a new bike.So we can get out and explore.I would love for him to try to ride.And I would love to try to teach him to ride.But I don't want him out riding and alone