Mud tyres on Caravans
Submitted: Wednesday, Feb 17, 2016 at 16:33
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Member - Phil G (SA)
Is there a good reason (apart from looks) that offroad caravans almost always come with muddies? Strikes me that it shouldn't matter much and muddies don't roll as easy as H/T and A/T.
Ideas?
Reply By: MEMBER - Darian, SA - Wednesday, Feb 17, 2016 at 18:17
Wednesday, Feb 17, 2016 at 18:17
A marketing strategy Phil (but you knew that :-)......surely, muddies are for grabbing things while being driven.... in the slush, to improve traction ? Vans don't have driven wheels. As
well as that, it seems muddies have inferior grip on sealed surfaces, especially wet ones. A commom AT tread on LT tyres seems the go. Anyway, bona-fide van builders fit tyres specced by the buyer.
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Reply By: Member - Phil G (SA) - Wednesday, Feb 17, 2016 at 20:32
Wednesday, Feb 17, 2016 at 20:32
Thanks everyone for your thoughts which are similar to what I was thinking that it was mostly marketing - offroad caravans need to look tough. Our caravan came with Cooper STT - not my favourite brand but no reason to change them. Most seem to come with the cheapest chinese "flung dung" brand muddie.
A few years back I was towing the Tvan through the Flinders and the heavens opened up when we were driving from Parachilna to
Blinman. The road was being resurfaced and turned into a very slippery clay. At times the Tvan was going sideways - the fat AT tyres were clogged up and slipped all over the place. I fear this big tall caravan doing the same thing, but wondered whether having muddies might stop it sliding sideways a bit in that situation.
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Follow Up By: Bob Y. - Qld - Sunday, Feb 21, 2016 at 20:49
Sunday, Feb 21, 2016 at 20:49
One point no one's mentioned Phil, is the fact that if one was to "test" the ability of M/T tyres on their 'van on a sloppy, muddy road, they would be upsetting the authorities(Highways Dept/Main Roads) quite a bit. From memory it's 2,000 penalty points in Qld..........whatever a penalty point is?
Suppose one could always claim they were doing scientific research, for the caravan fraternity?
Bob
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Reply By: dennis m6 - Thursday, Feb 18, 2016 at 10:42
Thursday, Feb 18, 2016 at 10:42
I cant see why you would run muddies or aggressive a/t's on a van. unless you wanted to match them to the car for more spares
I bought a set of very mild a/t's as road tyres for my off roader ,they are actually called a/p (all purpose ??) but still a LT construction.
I think that would be the way to go
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Reply By: pop2jocem - Thursday, Feb 18, 2016 at 11:15
Thursday, Feb 18, 2016 at 11:15
Agree with those that say it's all about image. As far as having interchangable tyres/wheels, great idea but why not put HTs on the van as the normal road going tyres but have the tyre for the spare, if you carry another on the van that is, as an AT or a MT, the same as the road going tyres on the tow vehicle.
It's still a spare for the van and also an extra spare for the tug.
Cheers
Pop
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Reply By: Sand Man (SA) - Thursday, Feb 18, 2016 at 12:52
Thursday, Feb 18, 2016 at 12:52
An interesting question Phil.
When I bought my van, it was supposed to come with the same size wheels as my Colorado.
Following delivery, I noticed that the tyres fitted were Chinese knock off Muddies. (Goodride Radial M/T)
On closer inspection the wheels on the Van were "bigger" than those on the Colorado.
The Colorado uses 245/70R16's on a rim 6.5" wide.
The Van has 265/75R16's on a 7" wide rim. Not the same. The profile of the Van wheels and tyres are wider and higher.
The rims supplied were Primal Black/Silver alloy rims which look quite good. All in all the wheels shod with the muddies give a great appearance.
This is not a big deal when touring on bitumen and nice gravel roads as one spare is sufficient.
The quality of the Goodride LT Muddies is unknown to me, but they appear to track
well.
When I head into the outback however, I exchange the pretty looking "bigfoot" wheels with plain old steel Sunrasia rims I had left over from my previous camper trailer and fitted with the same size shoes of Bridgestone Dueler LT 245/70R16's that I run on the vehicle. In this setup, I have two spares for the rig.
I think you and other forumites are on the money, in that the bigger profile and wider tyres in Muddy formation look good, but that is all. Just a marketing/appearance solution.
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Follow Up By: gbc - Thursday, Feb 18, 2016 at 13:07
Thursday, Feb 18, 2016 at 13:07
I just put money down on a camper which also comes on the ubiquitous goodride 265/75/16 mudders. My ute just happens to run the same size tyre so I'm not whinging too much. After hitting many manufacturers over the past two years, they have all said that if they are showing at a caravan/camping show and their product does not have independent
suspension and mud tyres, half of their possible foot traffic simply walks straight past, no matter what.
It is the new 'norm'.
God only knows how my old trakshak made it offroad for 19 years on highway terrain coopers and leaf springs haha.
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Reply By: Member - Andrew & Jen - Thursday, Feb 18, 2016 at 13:11
Thursday, Feb 18, 2016 at 13:11
Hullo Phil
Based on my own experience - about 100 000 kms of towing a Tvan or BT - I have found that MTs on vans are no more effective than a good LT A/T with an open tread such as the Bridgestone 697 regarding grip in slippery conditions at the lower speeds one needs to travel when towing in these conditions.
At low speeds in highly plastic soils, the non-driving wheels with MTs don't seem to clear any more than the A/Ts.
Not only that, they are an absolute pita for vehicles going in the other direction wrt stone throwing..
The Tvan has M+S (came with them) and the BT has Bridgestone 697s, having had 694s prior to the change over. None have been staked in 60 000 kms including over some pretty ordinary roads/tracks at lower tyre pressures. One (a 694) suffered a
puncture from a dreaded Tek screw!
Cheers
Andrew
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Follow Up By: gbc - Thursday, Feb 18, 2016 at 15:43
Thursday, Feb 18, 2016 at 15:43
I would have thought something like a plane tyre with bigger radial grooves would be the perfect trailer tyre. The grooves being for big lateral grip and little or no rolling resistance. Apart from larc tyres is there such a thing?
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Reply By: Member - nick b - Thursday, Feb 18, 2016 at 21:36
Thursday, Feb 18, 2016 at 21:36
G,day :
well i started off thinking much the same as others .... just for show !! but then...
One of the reasons for mud tyres is for better mud ,dirt etc
clearing . so is it any different on
a trailer etc .... obviously you don't need it in the same way as on the driving wheel of a car but
i could see it helping in certain situations like slippery muddy roads etc .
and as others have stated the toughness of the off road tyre on a trailer bouncing around on
the back ...
But saying that i have just have all terrain tyres on my camper ...
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Follow Up By: Australian Landscape Jewellery - Sunday, Feb 21, 2016 at 08:13
Sunday, Feb 21, 2016 at 08:13
I don't think muddies are any good at all on slippery roads (if we mean bitumen covered in something slippery rather than just mud.) I think muddies are useless for anything apart from mud. In mud they are great. They aren't good for sand. There road holding isn't as good as regular or AT tyres, They are noisy. The tread wears fast. They dont brake as
well on regular roads.
I'd only have muddies on a vehicle if I very regularly travelled in serious mud type conditions and I'd accept that the extra bite they gave in those conditions was worth the negatives on regular roads when I was travelling to the mud playground. Maybe if I lived in the High country. Maybe if I lived in the Kimberlies on an unmade road area and I swapped to them for the wet season
So, I'd agree that they give a little extra clearance (when new) but in every other aspect I reckon muddies are a negative.
Mike
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Follow Up By: Australian Landscape Jewellery - Sunday, Feb 21, 2016 at 11:45
Sunday, Feb 21, 2016 at 11:45
I'm not sure that mt have stronger sidewalls and if they do, do you really want them (unless you are in actual muddy conditions)? For highway and sand conditions you don't want stiff sidewalls. Extra tread depth is good for soft, wet conditions but again, it isn't necessarily a good thing for highway use. That extra depth just peels off. That's why high speed road tyres are not designed with thick treads. It actually doesn't add to tyre life (under highway conditions) The kind of tread pattern you need for highway use/handling and breaking is very different. IMHO. muddies should only be used in muddy conditions.
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Follow Up By: Idler Chris - Sunday, Feb 21, 2016 at 13:13
Sunday, Feb 21, 2016 at 13:13
I get far fewer punctures with mud tyres in sandy conditions than with AT's. I am talking deserts here where there are sticks and not beaches. Also mud tyres with stronger sidewalls allow lower pressures in sand and so a bigger footprint which equals greater traction. It all depends where you go as to which is best for any particular person.
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Follow Up By: Australian Landscape Jewellery - Sunday, Feb 21, 2016 at 13:45
Sunday, Feb 21, 2016 at 13:45
The problem with mud tyres is their performance when you get them off mud. In Australia we generally travel longish distances on regular roads between play times. Ideally we would have several sets of tyres and swap them over for different road conditions. Mt are especially a problem on wet bitumen. The tread is just not designed to remove water fast , they dig in.
Respectfully, I doubt that stronger sidewalls gives better performance in sand. Strong sidewalls limit bagging rather than the other way around and its the bagging that gives the traction. Tyre failure at low pressures on sand comes from heat build up when they are driven on too fast for the inflation level and stronger sidewalls increase heat build up.
http://www.offroaders.com/tech/AT-MT-Tires/tire-tech.htm#Mud_Tires_offroaders
Mike
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Follow Up By: Idler Chris - Sunday, Feb 21, 2016 at 14:09
Sunday, Feb 21, 2016 at 14:09
All tyres are a compromise it depends what you are doing. If you drive a lot of wet bitumen you don't have mud tyres. If you do a lot of desert work then they come into there own.
Strong sidewalls do not limit bagging. It just means that compared to an AT tyre you have to let out more air to achieve the same bagging and footprint. What it does mean that with the stronger walls to carry the weight of the vehicle you can go lower with the tyre presure and achieve a bigger footprint with a mud tyre.
As far as performance goes they are not a problem when you get them away from mud. Read the link in the last post. QUOTE "But when you look at the tread design of many mud tires, they generally perform
well in other conditions such as on the rocks, in deeper snow, as
well as in loose gravel and in the softer, constantly changing terrain of wooded
trails."
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Follow Up By: Australian Landscape Jewellery - Sunday, Feb 21, 2016 at 16:08
Sunday, Feb 21, 2016 at 16:08
Yes, the quote is taking about deep slushy stuff like snow, not just mud. That is very different to our bush conditions (high country and top end wet excepted). USA Woodland
trails are very different to our bush tracks. I don't think you should be driving a lot on dry bitumen with mud tyres either. I think they are designed for
places that have moths of snow and similar but we love them for the look. I used to live in Alice and did a lot of sand and track driving. I tried it with MT. How low you can go with tyres is rather more limited by ability to stay on a rim which decreases as you get lower pressures. If the tyre wall is strong enough for the weight of the vehicle for normal running, you can lower it until ready to roll off a rim for sand use, and if you get rim tyre locks you can go further. The issue of sidewall strength is usually discussed in terms of spiking with those favouring stronger sidewalls arguing it gives more resistance and those against arguing that the chances of spiking are decreases with less rigidity.I have no firm opinion on that as I have never had a sidewall spike with AT ot MT while travelling with low pressures at lower speeds. The one bad one I had was my own fault for being too lazy to increase tyre pressures when I sped up a little (not a great deal) for about a km of bitumen and it was pretty clear in that case that heat build up was the culprit. .
Cheers
Mike
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Follow Up By: Member - nick b - Monday, Feb 22, 2016 at 16:02
Monday, Feb 22, 2016 at 16:02
Idler Chris : i think your right on the money " compromise "
I always have mud tyres on my work ute & i think there great .
the only negative for me is the extra noise .
I get good mileage out of them and very few flats .
so getting back to it , i don't see any negatives for the " OFF ROAD " camper trailer
more a bout preference and less about science .
mike's quote : I don't think muddies are any good at all on slippery roads (if we mean bitumen covered in something slippery rather than just mud.) I think muddies are useless for anything apart from mud . unquote :
you must be driving on roads different to me ......me, also a former alice resident .
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