Help & Advice

Trident Towing Help & Advice

Browse the files below or for further assistance please contact us.

Tel: 01622 233 355 Email: enquiries@tridenttowing.co.uk or use the form on our Contact us page.

Opening Hours

8.00am to 5.00pm Monday to Friday
8.00am to 1.00pm on a Saturday.

We are closed on Sundays and all bank holidays.

Unladen weight the weight of the trailer or towing vehicle less removable optional equipment, accessories and load.
Gross weight the total combined weight of the trailer or towing vehicle and load.
Gross Vehicle Weight (GVW) or Gross Vehicle Mass (GVM) the total combined weight of a towing vehicle and its load.
Maximum Gross Weight the maximum figure set by the manufacturer for the gross weight. This will usually be the technically permissible maximum based on the load carrying capacity of the tyres, axles, coupling, suspension and chassis components, but it may be adjusted downwards for commercial reasons.
Technically Permissible Maximum Weight the technically permissible maximum based on the carrying capacity of the tyres, axles, coupling, suspension and chassis components.
Maximum Authorised Mass (MAM ) as maximum gross weight above. The latest EC term as used in the driver licensing regulations.
Gross Train Weight (GTW ) the maximum allowable combined weight (combined MAM) of the towing vehicle and trailer as set by the towing vehicle manufacturer.
Payload the difference between the gross weight of the trailer and its unladen weight: i.e., the maximum load carrying capacity.
Kerb weight (kerbside weight) the weight of the towing vehicle (without payload) including all fluids required for operation.
Vertical static load (nose load) the weight imposed on the towball or eye by the trailer coupling.
Overrun braking system (surge brake) a brake system commonly used on small trailers where the inertia of the trailer provides the force to apply the brakes.
Power operated braking system a trailer braking system operated directly by the action of the foot brake on the towing vehicle.
Wheel track distance between the centrelines of the wheels across the width of the vehicle or trailer.
Wheelbase distance between the centrelines of the wheels of multi-axle vehicles or trailers down the length of the vehicle.

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