CREATE TABLE table_27458 ("Rank" FLOAT, "Rider" TEXT, "Sat 29 May" TEXT, "Mon 31 May" TEXT, "Tues 1 June" TEXT, "Wed 2 June" TEXT, "Thurs 3 June" TEXT, "Fri 4 June" TEXT)

If Tuesday 1 June is 21' 05.27 107.351mph, what is the rider total number?
SELECT COUNT("Rider") FROM table_27458 WHERE "Tues 1 June" = '21'' 05.27 107.351mph'
SELECT COUNT("Rider") FROM "table_27458" WHERE "Tues 1 June" = '21\' 05.27 107.351mph'