Radial and bias-ply tires: Before you start the test, please answer the question below regarding your insurance status. Without insurance you will not be able to drive in Wisconsin Do you currently have car insurance? Yes I have insurance. Great, you're all set! Click here if you still want to compare rates. No, I need insurance. Click here to compare rates from our insurance partner. Question Radial and bias-ply tires: Answers Should be used together. Should be used together on the front of a vehicle. Should not be used together. Explanation Radial and bias-ply tires should not be used together. All wheels on a vehicle should be the same style and equally-sized. This questions appears in the following tests: Hawaii Tank Hawaii Passenger Iowa Class A Knowledge Test Kentucky Passenger Michigan Class B Knowledge Test Michigan Double Michigan Double Nevada Double Washington Passenger