Steep Hill Upwards Ahead Post Mounted Sign - 524.1 R2/RA2 (Face Only)This permanent warning sign is used to warn drivers that there is a steep upward gradient ahead. This allows rivers to prepare themselves for the climb, this is more important usually for heavy goods vehicles. The sign can sometimes be accompanied by a supplementary plate instructing drivers to use a low. When buying this sign you can enter the gradient % required, as per the traffic sign guidelines we will round up or down any decimal value to a