Are motorcycles allowed to travel in a lane opened to traffic in the opposite direction to normal?

Why this is the correct answer

This question refers to a lane that has been officially opened by traffic authorities to carry traffic in the opposite direction to its normal flow. This can happen for two reasons: (1) to improve traffic flow during peak times, or (2) due to roadworks on the motorway (as shown in the image, where cones and barriers redirect vehicles). In BOTH cases, motorcycles — whether two-wheeled or with a sidecar — are always allowed to use these lanes. Important: when the lane is opened for traffic flow reasons, only motorcycles and passenger cars (without a trailer) may use it. When opened due to roadworks, ALL vehicles authorised to travel on that road may use it unless expressly prohibited. Since motorcycles are permitted in both scenarios, the answer is B (Yes). Option A is incorrect because Spanish regulations do not distinguish between motorcycles with or without a sidecar — all motorcycles are allowed. Option C is incorrect because there is no prohibition on motorcycles using these lanes. Remember: when using such a lane, you must always drive with dipped headlights on (day and night), respect a speed range of 60-80 km/h (unless otherwise indicated), and never change lanes or overtake within the contraflow section.