900x1200mm- Class 1 – Aluminium – 100 km Speed Restriction in Roundel

The R4-1C(100) represents professional highway-grade speed limit signage engineered for high-speed road environments. This 900x1200mm regulatory sign displays the 100 km/h speed restriction within the familiar red roundel format, sized specifically for readability at highway speeds and from extended approach distances. Manufactured from robust 1.6mm aluminium alloy with Class 1 high-intensity reflective vinyl laminate, this sign delivers outstanding performance across all environmental conditions encountered on Australian highways and major roads. The substantial dimensions ensure drivers traveling at high speeds have adequate time to perceive, comprehend, and respond to the speed limit information. The Class 1 reflective coating utilizes advanced microprismatic technology creating brilliant light return when illuminated by vehicle headlights, maintaining exceptional clarity during nighttime operation, in adverse weather including fog, rain, and dust storms, and when viewed from various approach angles. The aluminium construction provides superior durability, resisting corrosion from salt spray, moisture, and pollutants while maintaining structural integrity through extreme temperature variations and severe weather exposure. Weather-resistant inks and UV-stabilized materials ensure the speed limit numerals remain crisp and highly legible throughout years of continuous highway service. Pre-drilled mounting holes enable secure installation on standard Australian highway sign posts and mounting systems. Full compliance with AS1742 traffic control device standards makes this sign approved for public highway use and suitable for private roads requiring regulatory-grade signage. Ideal for national highways, state arterial roads, major rural roads, and private roads where 100 km/h represents the appropriate legal speed limit.