Home / Saskatchewan / Questions / Rules of the Road Rules of the Road Report Winter tires 3 mm: A Keep B Replace — below 4 mm compromised C All-season D Mountain Show Answer & Explanation Correct Answer: B. Replace — below 4 mm compromised All-season hardens. Previous Next More Rules of the Road Questions Passing cyclist: Cyclist full lane when: Motorcycle entitled: Crosswalk duty: White cane pedestrian: Often Missed All Saskatchewan Questions Smart Practice Mock Exam Road Signs Guide