Just a sales pitch, every tyre manufacturer will put out messages saying how wonderful their product is, although saying that I've just looked at the Conti sales leaflet and it makes no mention of holding tyre pressures for longer, so where did you read that?
In France on holidays, dog jumped out of her skin when it went 'Bang' luckily on a slow country road, as you say their super speed bumps are vicious if your not looking out. Tyre was about 5yr old, with the scooter in the back it does run near max for 116 rated tyre and pumped to 80 psi, think they had both 69 and 80 psi on these can't remember. Anyway being disappointed in that inconvenience on hols I replaced them, rears, with 121 rated commercial Avon AV11, (AS12 now ans snow rated) for more peace of mind/margin, which have been good for the last 5 yrs. 28kmiles. Which loose no air
!
I can't remember where I read that CP tyres were better at maintaining pressure than normal van tyres but according to google they do.
Just about every source I can find (and not just tyre companies) recommends CP tyres for heavy motorhomes and particularly large coach built vans with a long overhang citing increased stability, better MPG, stronger sidewalls, better for standing for long periods of times and running at near max limits.
From the Swift manual.
Motorhome Tyre Specifications
You should note that your Motorhome is fitted with “Camper Tyres”. Camper tyres meet a specific “CP” (Camping P neu) standard fortyres on Motorhomes. The Camper tyres on a Motorhome (unlike a commercial van) a redesigned to carry a significantly higher load for the majority of their life and even when stationery for greater periods of time unlike a van which typically loads and unloads. As a result Camper tyres have stiffened sidewalls to withstand the increased payloads and pressure on them, this extra reinforcement also gives better vehicle stability on the rear with the heavier rear axle loads typical on a Motorhome. The tyres are also designed to improve mileage (wear) and offer better grip off road. When replacing your tyres we only recommend the fitment of CP or Camper Tyres.
I have yet to find anything that says the opposite and that normal van tyres are better or as good. Just peoples opinions on forums.
Without data, that's all meaningless nonsense, and more importantly dangerous, I'd say. When it comes to loads/weights on any vehicle, the bit of data that's sits above all other data is the load index.
All Swift have done with that is encourage people to be lazy and not to think. Reading that alone could quite easily lead someone to believe that as long as they have a CP tyre, they are alright, I can imagine some even arguing their CP tyre with a load index of 116 is better at carrying loads than a C rated tyre with a 121 load index.
As I posted before, yes a CP tyre in the size on my van would be downright dangerous, it would not be up to the axle loads, I had this conversation with Michelin technical department where they at first told me to use a CP tyre then had to back track and admit a CP tyre was not up to the task and that they had no suitable tyre in the size that came with my van. To be fair to Conti they do make a tyre which is advertised as a 'camper', but they are not allowed to stamp it with CP as it is built to a higher standard.Ah right so they are dangerous as well now then! Ferkin ell!
I'll take em back then shall I and ask for a set from an old transit they have parked round the back then.
My question to Michelin was actually about using CrossClimates, and if they would be available with the load index I required in the size I needed, they where happy to confirm they where soon to be released in the size I wanted and with the correct load index, when they twigged it was for a motorhome they tried telling me to use CP tyres, before I pointed out these these would be under specified.But why would you put any tyre on any van that was not up to the axle loads? That's just stupid. I would hope any garage worth its salt wouldn't do that and you would check yourself anyway. A 1250kg 16 CP on my van is the exact right tyre for that van. Job done, hopefully for many years to come.
It seems tyre threads are as controversial as Gassing threads or fcuking A Frames!! Who knew?
Here's what Conti have to say in the blurb on the tyre you have fitted.
www.continental-tires.com
I refer you to post # 68.But why would you put any tyre on any van that was not up to the axle loads? That's just stupid. I would hope any garage worth its salt wouldn't do that and you would check yourself anyway. A 1250kg 16 CP on my van is the exact right tyre for that van. Job done, hopefully for many years to come.
It seems tyre threads are as controversial as Gassing threads or fcuking A Frames!! Who knew?
I have stated that I think your tyres are fine.Why not quote the entire statement as you seem so obsessed in trying to convince me I have bought the wrong tyres?
By strengthening the tyre construction, the tire is less sensitive to overload conditions. The protection complies to the Camping Pneus (CP) standards and improves safety during motorhome applications with increased loads.
.VanContact Camper: Mobile living enhanced by german technology | Continental Tires
Keep control of the road – and your holiday mood. A robust construction boosts safety during temporarily increased loads according to CP standards.
I am spot on with what I posted earlier. The "temporary loads" refers to exactly what I mentioned with the longer motorhome overhang at times like going over speedbumps and especially with the scooter on the back. Meaning they are better at coping with such increases of loads than an ordinary van tyre with a much shorter overhang.
Don't worry, Ill keep you so called experts right.
