3yo trying to ride his 14″ Ridgeback MX14 bike. Saddle is all the way down and he can reach the ground almost with the ball of his feet but not flat. Was trying to encourage him to pedal but it looked to me like the crank arms are too long given how much he was bending legs. The bike has 102mm crank arms, and found some 90mm crank arms on ebay, but not sure it would really make much difference? He’s not very enthusiastic about the bike yet, it’s a big step up from his Strider balance bike, much heavier, bigger, more to think about. There again, it’s only £16, hmmmm.