Pedals don't engage wheels

[ernest roy]

My son has a 24" mountain bike that's 1 month old. Today, the wheels went "dead" suddenly. they rotate fine but when he pedals, there is no power to the pedals at all. The chain tension is fine - I see no missing parts or pulled out cables. What could this be?

Ernest

[Bill]

Some advice you said 1 month old, see if you can take it back to the place where you purchased it.

[cyclerUK]

It sounds like the freewheel hub in the rear wheel has broken.

Take it back to the shop where you bought it from and get it exchanged for a new bike.