Sorry, thought you meant road bikes….
We run Mtb holidays in Liguria, and we are based in Molini just 30 mins inland and just over an hour from Nice, Summer is a great time to ride, contrary to what others say, mountains here (maritime alps) are twice the height of Finale, so are cooler, and you can drop to the sea.
Sanremo will be overgrown as these are only used in Winter, but there are loads of other coastal trails.
July and Aug in Finale is mobbed by Italian holidaymakers and its v quiet on MTB front, mainly as all the Germans will be in the Alps.
Getting to Turin is easy on the train, and there is great stuff in val aosta
Drop me line if you want more info