A similar incident happened in February when the Garmin-Sharp team had all their bikes stolen during the Tour Mediterranéen in France.
The men's elite road race will be held on Sunday over 272.3 kilometres (272.3 miles) from Lucca to Florence.
"Police at work... Stolen ALL the bikes last night. No start tomorrow," Kolobnev, a silver medallist at the world championships road race in 2007 and 2009, wrote on his Twitter feed.