Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_74374 ( "Rank" real, "Rider" text, "Mon 30 May" text, "Tues 31 May" text, "Wed 1 June" text, "Thurs 2 June" text, "Fri 3 June" text )

### Question ###
What is the number of riders that had a Tues 31 May time of 18' 55.91 124.236mph?

### Accurate SQL ###

SELECT COUNT("Rider") FROM table_74374 WHERE "Tues 31 May" = '18'' 55.91 124.236mph'