Sorry Jim how can the 2000kg towing limit be irrelevant?
The dynamic forces on the towbar have to be proportional to the weight of the load being towed so if the towbar is adequate for the forces generated by a 2000kg load it is clearly underrated if the towed load is 'only' 1500kgs.
I really can't see how 65kgs weight added to the towbar ahead of the towball can be significant when the dynamic loads generated could easily be 10, 50 or even more times that.
Quote: Originally posted by Greendemon315 on 09/3/2015
25kg is very light for nose weight on a caravan. The 2000kg is irrelevant really. That's what you can pull with it - the horizontal loading if you like. The nose weight is the vertical loading.
Jim
I'm just quoting Knaus....... the minimum that provides a safe and stable tow is the target surely?
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Quote: Originally posted by Motobiman on 08/3/2015
Quote: Originally posted by checkley1973 on 08/3/2015Maybe a silly question but what do you put in your roofbox? Can't you put this stuff in your caravan and carry the bikes on your roof?
One thing for sure is you don't have anywhere near enough nose weight capability to carry a bike rack and van on your towbar. Your can will be circa 70kg, the rack circa 10kg so that leaves one average bike at 15kg to put you at your limit. My guess is it would be an awful tow too, we used to have a 4 bike towbar carrier and even without a van you could really feel it.
But the nose weight refers to the load on the towball, the load on the bike rack is not on the towball.
If the bikerack was bolted to the caravan drawbar I could see how it was part of the nose weight but surely is it not part of the car load no different to it being in the boot?
Where does it say loads on the car are part of the caravan load and thus included in the nose weight?
It's nothing to do with the tow ball, the 100KG is the max weight on the Tow bar in total and these racks bolt to the tow bar so have to be counted.
Agreed Renault set the (maximum) Nose Weight (note the caps) at 100kgs.
But the EC directive 95/48 states that this load (the Static Vertical Load) must be not less than 4% of the maximum permissible towable mass (i.e. the towing limit) and not less than 25kg.
The maximum permissible towing mass of the car is 2000kgs so the SVL cannot be less than 100kgs.
No where does it say the total load on the towbar cannot be more than 100kgs.
And the Caravan Club say.
Static Vertical Load or noseweight is the downward force (or weight) of the caravan’s coupling head on a car’s towball. It is vital to have sufficient noseweight when the outfit is stationary, as research shows that the download decreases with speed due to aerodynamic effects on the caravan. If all your noseweight effects are lost at speed, caravan instability is much more likely.
So this nose weight issue appears to be less to do with the loads in the towbar but more the aerodynamic effects on the caravan at speed.