R-301
Maximum speed
No driving faster than the speed in kilometers per hour shown on the sign. It applies from where the sign is placed until the next "End of speed limit", "End of prohibitions", or another "Maximum speed" sign, unless it is on the same post as a danger warning sign or on the same panel, in which case it ends when the warned danger ends. On a road without priority, it ceases to apply when leaving an intersection with a priority road. If the limit matches the maximum permitted for the type of road, it serves as a general reminder not to exceed it.
Category: Other prohibition and restriction signs
Source: General Traffic Regulations (RD 1428/2003), Annex I; designs per the official sign catalog (RD 465/2025)