user: Question: What was the speed for the rider with a time of 1:14.15.64?
Columns: ['Rank', 'Rider', 'Team', 'Speed', 'Time']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'Ewan Hamilton', '242cc Suzuki', '91.675mph', '1:14.04.88']
SQL:

assistant: SELECT "Speed" FROM "Table" WHERE "Time" = '1:14.15.64';