Chief Executive Carlo Puri Neri said turmoil stemming from the financial markets' crisis made forecasting difficult. Release of the 2008-2010 plan had been scheduled for May 8.
Shares in Pirelli RE fell after the announcement. They were off 4.19 percent at 22.88 euros at 1113 GMT.
"We're working on the three-year plan, but we are also trying to understand how the crisis is turning out. We will present it in the second half of the year," he told shareholders.
