
If you want to be on the fast track with your trailer you should get a 100 km/h authorisation for your combination. In this case you can go 100 km/h instead of only 80 km/h on the motor road or highway. You can have your trailer checked to know if it fulfils the conditions for this. With the confirmation you get the required 100 km/h plaque from your responsible authorities.
These 100 km/h speed regulations are valid for:
- cars and
- other multitrack vehicles (e.g. caravans) with a permissible total weight of up to 3.5 t
The technical requirements are:
- your car is equipped with ABS
- the trailer is suitable for a maximum speed of 100 km/h
- the trailer tyres are equipped for 120 km/h and have at least the speed index L
- the tyres are younger than six years
In addition to that, certain mass proportions between trailer and towing vehicle must be observed. The permissible total weight of the 100 km/h trailer depends on the empty weight of the towing vehicle. You can find the multiplying factor X for the empty weight in the following table:
Technical equipment of the trailer:
- without hydraulic shock absorbers: 0.3
- with brakes and hydraulic shock absorbers: 1.1 or 1.2*
All braked trailers (except for caravans) have to meet further conditions:
- the permissible total weight of the trailer must not exceed the towing capacity of the towing vehicle
- the permissible total weight of the trailer must not exceed the permissible total weight of the towing vehicle
The factors with an attached “ * “ may be made use of if:
- the trailer is equipped with a suitable coupling with a stabilising device or
- the trailer is equipped with a suitable dynamic stabilisation system or
- the towing vehicle is equipped with a suitable dynamic stabilisation system for trailer use (confirmed in the registration certificate)
Examples for calculation:
Factor X = 0.3 (unbraked trailer)
Empty weight of the trailer: 1800 kg
1800 kg x 0.3 = 540 kg (max. permissible total weight of the trailer)
Factor X = 1.1 (braked trailer)
Empty weight of the towing vehicle: 1800 kg
1800 kg x 1.1 = 1980 kg (max. permissible total weight of the trailer)