Your coach often tows a trailer. How often should you check the trailer tyres for pressure? Your coach often tows a trailer. How often should you check the trailer tyres for pressure?

• Possible answers:

   
• A. At least once a week when they're cold
• B. At least once a month when they're hot
• C. At least once a week when they're hot
• D. At least once a month when the trailer is fully laden