Which TWO are badly affected if the tyres are under-inflated?

Explanation: Your tyres are your only contact with the road so it is very important to ensure that they are free from defects, have sufficient tread depth and are correctly inflated. Correct tyre pressures help reduce the risk of skidding and provide a safer and more comfortable drive or ride.

Category: Safety and Your Vehicle

References: The Official DVSA Guide to Driving: Section 12, The Official DVSA Guide to Driving: Section 14, Highway Code: Page 129