tap & go ® adopts the most convenient rate according to the number of journeys you make within 24 hours. If you exceed four taps, at the fifth you will be charged for a 24-hour Roma ticket for € 7, which is cheaper than five BITs (€ 5 x € 1.50 = € 7.50). The 24 hours of validity of the title will be calculated from the time of the first tap.