More than half of all crashes: Question More than half of all crashes: Answers Occur at speeds greater than 35 mph. Are caused by worn tires. Happen in the dark. Involve riders who have little experience on their motorcycles. Explanation Most motorcycle crashes involve riders with little experience on their motorcycle. This questions appears in the following tests: District Of Columbia Motorcycle Practice Test 2 Louisiana Motorcycle Practice Test 19 New Jersey Motorcycle Practice Test 28 Alaska Motorcycle Practice Test 3 Arizona Motorcycle Practice Test 26 Arizona Motorcycle Practice Test 1 Connecticut Motorcycle Practice Test 11 Hawaii Motorcycle Practice Test 14 Iowa Motorcycle Practice Test 10 Kentucky Motorcycle Practice Test 30 Kentucky Motorcycle Practice Test 6 Maine Motorcycle Practice Test 38 Maryland Motorcycle Practice Test 17 Massachusetts Motorcycle Practice Test 5 New Hampshire Motorcycle Practice Test 18 New Jersey Motorcycle Practice Test 7 North Carolina Motorcycle Practice Test 9 North Carolina Motorcycle Practice Test 10 Oklahoma Motorcycle Practice Test 8 Oregon Motorcycle Practice Test 20 Utah Motorcycle Practice Test 4 Vermont Motorcycle Practice Test 19 Wisconsin Motorcycle Practice Test 10