Two Bends Ahead Sign Face Post Mounted 513 (Face Only)

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Double Turning Ahead Sign 513

The ‘Double Bend Ahead’ diagram is designed for use where bends of similar severity follow each other. Diagram ‘Left' is for a first turn left, followed by another harsh turning right. Diagram ‘Right’ is the reverse. Be sure to pick the correct sign as using the opposite diagram can lead to accidents!

You will see this sign anywhere where two opposing harsh turns are in close proximity, such as single carriageways through country areas. Please refer to the TSRGD Traffic Guidelines, Chapter 4- pages 14 and 15 for a table describing the specific distances and speeds where this sign is appropriate.

It may be used above one of the following supplementary diagrams:

  • Diagram 511- “Reduce Speed Now”
  • Diagram 513.1- “Adverse Camber”
  • Diagram 513.2- “Maximum Speed Advised”
  • Diagram 526- “Keep In Low Gear”
  • Diagram 570- “For 00 yds”
  • Diagram 575- “Oncoming Vehicles In Middle Of The Road”

The double bend ahead sign comes in the standard warning sign size of 600mm. However, bigger sizes are needed corresponding to the speed of the junction and distance between the two bends. A table with these margins can be found on page 15 of the Traffic Signs Manual, Chapter 4. Our sales team are happy to assist you if this is the case.

Left Double Bend

Double Bend Ahead left

Right Double Bend

Double Bend Ahead Right

Superior Quality Sign Face

Superior quality speed bump sign

Superior quality prismatic reflective sign face ensure that the sign stands the test of time.

Durable Composite Base

Classic roll up sign hinge

Made from a composite material which is an aluminium covering over plastic, it is light and ultra strong.

Designed to be Post Mounted

Protected reflective face

Each Part of the sign comes with two rails allowing the fitment of two clips per face for secure mounting.


Conforms Class 2 Reflectivity
Diagram Reference 513
AccuChecked ✔ (The specification has been independently checked for accuracy)
AccuPhoto ✔ (The photos are of the actual product type that you are ordering)
Thickness 3.6mm (face), 20mm (including rails)
Per Unit 960g
Type R2/RA2 reflective material on composite backing
Colour Grey backing, white, red and black signage
Customisation Alternative wording and sizes available. Please call for details.

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