15mph | Quick Fit Sign Face Dia. 670 (Face Only) | 750mmThe 15mph speed limit sign is one of the least common speed restriction signs on public roads, however it very common within construction sites. These signs can often be spotted within major road works where site traffic is likely to be high because of the volume of construction. With the above in mind the 15mph sign suites the quick fit sign face mounting method as it allows for the sign to be mounted higher off the ground compared to alternatives