Jay Marmont and wife Abby welcomed baby Jax to the world yesterday.

Multiple-time Australian champion Jay Marmont and wife Abby have welcomed a new baby boy to the family this week, Jax Robert Marmont.

Jax was born yesterday, 3 November, at 8.00am, which was 10 days earlier than expected. Jax weighs 8.2lbs and is 51cm long.

The birth of Jax comes just a couple of months after younger brother Ryan Marmont and his fiance Chelsea had a baby daughter, Indigo Grace Marmont, in September.

This weekend will see the proud fathers continue their Super X campaigns at Campbelltown Stadium, with Jay currently fifth in the Pro Open standings, while Ryan is seventh in what is his rookie season.

Congratulations to the entire Marmont family from MotoOnline.com.au!