Meet the UK’s youngest daredevil competing in national motocross races

River Mathias, four, started riding motorbikes before he could even walk and now races against children twice his age

Daredevil River Mathias is the UK’s youngest motocross racer – aged just four.

The fearless youngster started riding motorbikes before he could even walk and now races against children more than twice his size and age.

River tears up the tracks hitting speeds of 25mph on his souped-up electric dirt bike worth £4,000.