Mudguard Mounting Instructions
- Single Arch
- Flat Tops
- Downloads / Product Data
All fitment of our product must comply with any legislation in force in the country relevant to your circumstances. Please see our section on the European legislation and check for local variants to this law with your local vehicle inspectorate. As there are many ways of fitting mudguards in a satisfactory way we offer commonly used methods and recommendations gained from experience of mudguard manufacture. Please accept these as helpful hints when deciding on the quickest and best method of fitment to ensure the long life of the product.
These can be fitted using a variety of methods (see fixings) but the function of the fixings is to support the mudguard and spread the weight it has to carry. Mudguards are exposed to the force of the wind whilst travelling at speed and the weight of heavy flaps which may be full of mud or snow. Therefore correct support from the fixing method will make the mudguard last much longer and appear pleasing to the eye.
Stay positioning is very important as stays fitted too high give little support and stays fitted at an incorrect distance apart or at any angle other than 90° to the chassis can cause the mudguard valance to buckle. It is possible to extend the span of a mudguard a little by ´pulling out´ the product on the stays but trying to reduce the span rarely works.
The flat top allows for fitment directly to the floor of the body of the vehicle thus saving cost and weight. We recommend fitment to each corner of the mudguard with a 60 mm washer. Of course, stays can also be used as illustrated in the single arch mudguards.
Primarily used in countries without a spray suppression law. The most commonly found problem here is the rotation of the wing on the single stay to which it is fitted. The LR650/ JVR- Range offers a tight grip on the stay combined with good support along the length of the mudguard.
The one-piece tandem should be fitted with at least three supports.
The three-piece tridem is assembled by cutting the centre section to the required length and bolting the centre section to the male stubs on the end pieces. Further details are included in the leaflet enclosed with the product. A minimum of 5 fixing points per tridem piece are recommended.
On close coupled axles (less than 250 mm apart) there is no need to fit an integral spat between each axle providing a spray suppressive valance is fitted. lf this is not the case a spat is required between each axle, although this does not have to include a spray suppressive liner material. On vehicles with axles greater than 250 mm apart then each axle must be fitted with the Integral Spat. Generally, the flap should be 200 mm or less from the ground. (300 mm on last axle if Rv = R or appropriate with suspension characteristics.
The combined mudguard/flap is designed to resist wind distortion when travelling at speed but correct fitment is essential to prolong the life of this product. The diagram indicates the correct fixing positions. Points to note are:
- Fit mudguard with the flap in vertical position
- The flap is trimmed to 200 mm from the floor (unladen vehicle) and can cut to 300 mm if Rv ≤ R or appropriate with suspension characteristics
- The stays are fitted as low down the front and rear as is practical to offer as much support as possible
- Fixings Systems is chosen to offer support as low down as possible, especially if the stays can not be fitted low down
- Cranked stays are recommended to overcome high fitment.
This product is a variation on the theme of a mudguard and a flap. It therefore can be fitted with both these regulations in mind. We recommend the use of a stay, saddle and backing plate as fixings for this product range. If the vehicle has a rave of 45 mm (Figure 1) and the distance between the tyre centre and the lower edge of the rave/spat does not exceed 1.25 R (radius of tyre) then no spray suppressive valance is required and fitment follows the rules of mudguards. An "XL" or "FL" product would be needed behind the wheel and a "L" in front. the choice of FL or XL is made on personal preference as long as the spray suppression liner rises at or about the 30°- line from the centre of the tyre.
If the distance between the tyre centre and the rave/spat cannot be kept below 1.25 R (Figure 2) or if the rave does not act as a 45 mm valance then a spray suppressive valance is required of 100 mm width and fitment follows the rules of flap and valance.