When preparing to slow, you should check?

When preparing to slow down, checking the traffic behind you is crucial for safety. This assessment allows you to be aware of any vehicles that may be approaching from the rear. Understanding the traffic conditions behind you helps ensure that you can slow down or stop without putting yourself at risk of being rear-ended. It also enables you to make necessary adjustments or signal for other drivers in a way that promotes safety for everyone involved.

While factors like weather conditions, mirrors, and speedometers are important to consider in various situations, they do not directly inform you about potential hazards from behind your motorcycle when you prepare to reduce your speed. Monitoring the traffic behind is a proactive measure that helps maintain a safe riding environment.