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SvTech | Advice on Uprating Over Weight Vehicles

WMS Warranty

Help to stop your customers running overweight

Plenty of motorhomes, horseboxes, vans and other specialist conversions are running around the roads of the UK over their maximum permitted weight.  To operate legally, the vehicles must be uprated – a specialist job that requires specialist knowledge.  SvTech have 22 years experience in this field to make sure that a vehicle is operating legally and safely.

About SvTech


Running A Motorhome Overweight?

SvTech Ltd was formed in 1993 specifically to offer technical support to truck and van manufacturers and converters in the UK and Europe. We specialise in matters relating to Vehicle Type Approval, with particular emphasis on payloads and braking systems.

Over twenty years we have continually enhanced our services and now sit as the UK’s leading authority on re-rating vehicles, which includes uprating to give more payload capacity, and downplating to reduce Gross Vehicle Weight (GVW) for licence and low-emission purposes.

Watch the Weight – Uprate

UprateSvTech is the UK’s leading vehicle re-rating specialist, with particular emphasis on the light commercial markets, which include vans, minibuses, motorhomes, horseboxes and 4×4’s. Vehicle overloading is a real problem in the UK, with DVSA statistics reporting that over 80% of LCVs stopped in 2014 were actually overweight, leading to fines and driving convictions. We can uprate and downplate many makes and models to help you avoid payload issues.

SvTech have carried out dynamic brake testing on all models in order to create precedent reports with the DVSA, against which we offer uprates to give the user as much as 500kg extra payload. Obviously each make and model is different, but we are confident in being able to help you!

We would advise anyone owning or buying a specialist vehicle to ensure that they have an up-to-date weight ticket showing an unladen weight well within the official GVW. Bearing in mind that the manufacturers’ brochure kerb weight figure has a 5% margin of error, it could mean that your particular vehicle is nearly 150kg over the brochure figure.

SvTech can provide a one-stop service, advising you on your options and, if needed, uprating your vehicle, of which some will require our simple purpose-built suspension assister kit. For some models, we also supply air suspension systems.

All Makes & Models

SvTech has accumulated a vast database about all makes and models of commercial vehicles, and our service is used across the UK and Europe to modify motorhomes, minibuses, horseboxes, vans and heavy goods vehicles. We advertise in all of the relevant press and offer free weight checks at various motorhome shows and equestrian events across the country, in order to highlight the very real dangers of overloading and to show how prevalent it has become over recent times. Indeed, the DVSA have released figures every year, indicating that over 80% of vehicles stopped for suspected overloading are in fact over their legal axle weights and/or GVW thus invalidating their insurance. This could be very costly for drivers.

Type Approval SpecialistsEWVTA Logo

The Whole Vehicle Type Approval (ECWVTA) directive for passenger and commercial vehicles means all vehicles will be manufactured to the same high standards of road safety and environmental performance, therefore improving customer confidence and retaining more value in vehicles produced. For converters and manufacturers looking only to sell within the UK, and at lower volumes, there are two separate schemes – National Small Series Type Approval (NSSTA) and Individual Vehicle Approval (IVA) . These schemes are designed to maintain the ECWVTA standards whilst minimising compliance costs for low volume manufacturers.

All Vehicle Types

  • Trucks & Trailers
  • Motorhomes
  • Horseboxes
  • Light Commercial
  • Pickups
  • Minibuses
  • The LDA Program

    In an effort to promote greater awareness amongst road-users of the dangers of overloading, SvTech designed an application that allows an owner/operator to calculate their likely laden weight. This is calculated by the user entering the vehicle’s unladen weight and vehicle dimensions, and then adding their desired loads, e.g. bike rack, awning, water, fuel, passengers, unladen weight. The program then calculates the results, based on the data entered, to give a Load Distribution Analysis, and warning if the user has overloaded a particular axle or axles. The user will then know how much they are able to carry safely. SvTech can advise on any problems arising, as the company is able to increase the payload allowance on many makes and models.

LDA Program

SvTech’s LDA Program

Contact SvTech
Chandler House
Talbot Road, Leyland
Lancashire , PR25 2ZF
United Kingdom
Phone +44 (0) 1772 621800

About Jason Hodge (1361 Articles)
Editor of Commercial Vehicle Dealer Magazine, Jason has worked in the commercial vehicle industry since leaving university over 20 years ago.