900x1200mm – Class 1 – Aluminium – 50 km Speed Restriction in Roundel

The R4-1C(50) represents premium speed limit signage engineered for applications demanding maximum visibility and advance driver warning. This substantial 900x1200mm regulatory sign displays the 50 km/h speed restriction within the familiar red roundel format, sized specifically to ensure readability from significant distances even at higher approach speeds. Manufactured from heavy-duty 1.6mm aluminium alloy and finished with Class 1 high-intensity reflective vinyl, this sign delivers outstanding performance in all environmental conditions. The larger format proves particularly effective on roads where drivers need substantial advance notice of speed changes, such as transitions from highway speeds to urban zones, school zone approaches, or areas with complex traffic conditions requiring early speed adjustment. The Class 1 reflective coating utilizes microprismatic technology to create brilliant light return when struck by vehicle headlights, maintaining clarity even in fog, rain, darkness, or dusty conditions. The aluminium construction ensures exceptional longevity, resisting rust, corrosion, and physical damage from environmental exposure while maintaining professional appearance. Weather-resistant inks and UV-stable materials prevent fading and discoloration over years of continuous service. Pre-drilled mounting points accommodate standard Australian traffic sign posts and brackets for secure installation. Compliant with AS1742 standards for use on public roads and private infrastructure.