Hey, just came out of work today and noticed that there is a speed depandant tick...tick..tick noise coming from the front area (Wheels Probably)

Ive just put 4 new tyres on the car so the tyre fitting guys had the tyres off so I doubt there is anything stuck in there making this noise?

The tick tick noise goes faster as I pick up speed

Any ideas what can cause this noise?

1995 5 door N plate Escort 1.6 16v Zetec

Thanks for any info