Just in case anyone is contemplating applying for 100km/h approval, here is a list of the technical requirements that must be fulfilled:
1. The trailer itself must be approved by the manufacturer for 100km/h use (this will normally be the case).
2. The maximum noseweight MUST be set at the maximum technically permissible, i.e. NOT at 7%
3. The tyres must not be more than 6 years old.
4. The tyre load rating must be in line with the weight of the caravan.
5. For caravans fitted with overrun brakes and hydraulic shock absorbers, the weight ratio must not exceed 100%,
if the fitted with a stabiliser that meets ISO 11555-1 requirements
OR
a stabilising device is fitted which has been tested and approved for speeds up to 120km/h (this, in essence, refers to AlKo ATC, BPW iDC, or LEAS electronic stabilisers)
OR
the towcar is fitted with a similar device (i.e. ESP+)
Notes to item 5:
a) For trailers other than caravans, the weight ratio must not exceed 120%.
b) If the requirements of item 5 are not fulfilled, the respective maximum weight ratios are 80% and 110%, respectively.
c) If the trailer or caravan is not fitted with hydraulic shock absorbers, the maximum permissble weight ratio is 30%.
6. The towcar must be fitted with ABS