2024 CO Motorcycle Practice Test 2 Based on 2024 CO Motorcycle Handbook 12. Without a helmet, a motorcycle rider is ___________ times more likely to suffer a critical head injury in a crash. A Four B Three C Six D Five Next More 12/30 Progress 0 Errors Restart Next Next CO Motorcycle Practice Test 2 Back to Test List CO Motorcycle Practice Test 1 CO Motorcycle Practice Test 3 Challenge Library 12 More CO Motorcycle Practice Tests 3 CO Motorcycle Practice Test 3 4 CO Motorcycle Practice Test 4 5 CO Motorcycle Practice Test 5 6 CO Motorcycle Practice Test 6 7 CO Motorcycle Practice Test 7 8 CO Motorcycle Practice Test 8 9 CO Motorcycle Practice Test 9 10 CO Motorcycle Practice Test 10 11 CO Motorcycle Practice Test 11 12 CO Motorcycle Practice Test 12