Spray Suppression Fitment Advice

Mudgaurds and Flaps

Twin & Tri Axles

If the gap between the tyres is less than 250mm, a flap on the rear mudguard only is necessary.

Flap Width

The flap should cover the full breadth of the tyre(s), except inside the mudguard, where it must cover the tyre tread(s) as a minimum.

This may be increased to 300mm if the manufacturer deems it technically appropriate with regard to the suspension characteristics.

Flap Valance

Twin & Tri Axles

If the gap between the tyres is less than 250mm, a flap behind the rear most axle only, is necessary.

However, the valance must continue and span the full length from Point A (see drawing) through to the flap behind the rear most axle.

Flap Width

The flap must cover the entire tyre breadth.

• This may be increased to 300mm if the manufacturer deems it technically appropriate with regard to the suspension characteristics.

 
 
EC Whole Vehicle Type Approval
With the advent of EC Whole Vehicle Type Approval, 2007/46/EC introduced in 2007 and certain amendments made latterly. It is now a mandatory requirement on vehicle categories N2 (vehicles over 7.5 tonnes) N3, O3 and 04, to adopt the European Fitment Criteria, which can only be achieved in most cases with Spray Suppressions mudflaps of 710mm and over in length. UK specification Spray Suppression mudflaps are permissible for retrofit on vehicles registered prior to EC Whole Vehicle Type Approval. For full and detailed fitment criteria, please refer to EU Regulation 109/2011 (Released 9.2.2011 – Updated 24.2.2015).