670 maximum speed 50mph sign face
The diagram 670 sign sets a 50mph maximum speed limit, commonly used on rural roads where the national speed limit steps down, and on dual carriageways leading out of built-up areas. The face carries a black 50 on a white background with a red surround for maximum visibility, manufactured to BS EN 12899-1:2007 and UK highway regulations, CE marked, with Class 2 RA2 high-intensity reflectivity. Each face is 3mm aluminium composite, available in four sizes from 300mm to 750mm for post or wall mounting.
Key features
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Diagram 670 speed limit sign - a 50mph maximum speed for rural and dual-carriageway approaches.
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High-visibility face - black 50 on white with a red surround.
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Road-sign specification - manufactured to BS EN 12899-1:2007 and UK highway regulations, CE marked.
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Class 2 RA2 reflectivity - high-intensity surface that reflects headlights back to drivers in low light.
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3mm aluminium composite - long-lasting material that withstands all weather conditions.
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Post or wall mounted - post faces come with rear channels for anti-rotational clips; wall faces are supplied undrilled.
Where it is used
- Rural roads stepping down from the national speed limit
- Dual carriageways leading out of towns and suburbs
- Smaller repeater sizes along a signed route
- Larger sizes at the point the limit changes from a faster road
Sizes and mounting
Four face sizes - 300mm, 450mm, 600mm and 750mm - each available post mounted or wall mounted. Post-mounted faces are supplied with rear channels that clamp to the post with anti-rotational clips, so the face cannot twist out of position; posts and clips are sold separately. Wall-mounted faces come with no holes - the composite drills easily for screw fixing, or bonds to the wall with a no-nails adhesive.
Specification
| Specification |
Detail |
| Diagram reference |
670 |
| Speed limit shown |
50mph |
| Sign sizes |
300mm, 450mm, 600mm or 750mm |
| Face thickness |
3mm |
| Material |
Aluminium composite |
| Face colours |
Red, white and black |
| Rear colour |
Grey |
| Reflectivity |
Class 2 R2/RA2 |
| Certification |
CE marked to BS EN 12899-1:2007 |
| Mounting |
Post mounted (c/w rear channels) or wall mounted |
| Origin |
Made in the UK |