Which rider from the 1971 Isle of Man Junior TT 250cc final standings had a speed equal to 86.15mph?
CREATE TABLE table_name_78 (rider VARCHAR, speed VARCHAR)
SELECT rider FROM table_name_78 WHERE speed = "86.15mph"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_78 (rider VARCHAR, speed VARCHAR) Question: Which rider from the 1971 Isle of Man Junior TT 250cc final standings had a speed equal to 86.15mph? [/INST] SELECT rider FROM table_name_78 WHERE speed = "86.15mph" </s>