CREATE TABLE table_name_33 (tyres VARCHAR2, year VARCHAR2, engine VARCHAR2)

What is the tyres with a year earlier than 1961 for a climax l4 engine?
SELECT tyres FROM table_name_33 WHERE year < 1961 AND engine = "climax l4"
SELECT "tyres" FROM "table_name_33" WHERE "climax l4" = "engine" AND "year" < 1961