That is the question, I can not decide so please help if you had similar problem when choosing the first bike for your child.
He is on his second push bike already on "16 wheels. Prefers to rides bigger now. He will hold the weight of oset16 when stationary at the shop, but not sure he will manage in slow turns or over obstacles. 12.5 seems too small but sales person at the shop advice is to
get 12 for him for one year.
Unfortunatelly can not find anywhere he could try both near London. He was on Kuberg trailE at bike show but that was too tall.