Complex sentence: It is for people aged 12 to 16 on ponies from 142 cm to 148 cm. A 1 cm leeway is given if the horse is shod, and 2 cm at competitions for'hype'.
Split into simpler sentences: It is for people aged 12 to 16 on ponies from 142cm to 148cm. A 1cm leeway is given if the horse is shod, and 2cm at competitions for'hype'.