Head to Torbole at the top of the lake and hire a bike from Carpentari bike shop or the greatly titled “Mecki’s Fu****g Perfect Bike Shop (honestly!).
Carpentaris bike shop are closely linked with Luca’s Bike Shuttle uplift service – suggest if you are only riding for a day you do the Mt Tremalzo classic. – van uplift for 45 mins, climbing on the bike for 200metres then downhill most of the way back in to Garda, probably takes between 2-4 hrs depending how fast you go and how many stops you make. Excellent views.
Book the bike and shuttle in advance as they get booked up in the high season.
It’s a fantastic place to ride. Go enjoy.