I have a Galaxy 16ft single axle poptop van- weight empty 1360kg. I am looking for a tyre that has firm/stiff sidewalls. The tyres on the van at the moment are Toyo L/T 195 R14C -105/104S 8PR. These numbers don't mean much to me. I run the tyres at 55 psi and the side walls look soft and as if they are just off the road. My concern is that they may become damaged. Any suggestions? - Mike.
-- Edited by mikepam on Wednesday 17th of October 2012 11:33:54 PM
ozjohn said
07:52 AM Oct 18, 2012
The Toyo's you're running are probably as good a tyres as you'll ever likely to get. I ran the same model van and tyres with air con and battery pack for 7 years and found a tyre pressure of 60psi was spot on. So without an air con or battery pack 55psi would be pretty close to the mark. Also remember that your van (Like many others) has no shock absorbers and thus the tyres have to try and absorb all the road shock. With stiff walls and/or stiff suspensions they can't do the job they're designed for. A bit to much air is better than not enough. Better to wear them out than blow them out. Hey! Safe travels, Ozjohn.
-- Edited by ozjohn on Thursday 18th of October 2012 07:53:41 AM
-- Edited by ozjohn on Thursday 18th of October 2012 07:54:47 AM
mikepam said
12:30 PM Oct 18, 2012
- Thanks to all for that advice. I'll take your advice about the tyre pressures and see how it goes. Travelling if definitely on the cards. - Mike.
-- Edited by mikepam on Thursday 18th of October 2012 12:32:25 PM
Zoomtopz said
01:44 PM Oct 18, 2012
Welcome to GN's Mike & Pam.
195 = about 7& a half "inches , so your tyre is 7 1/2 wide x 14" . 14 is the wheel size . lt = light truck tyre .
I think 40 psi , that's Just my thought . Check with tyre fitter , the 104-105 is the height of the wall,for rim to road .
Is van single axle or dual axle . Cause my train of thought 'lt' = a ton on each tyre . But as I said , when you go to
tyre fitter to check 'firmer walls' as them about th rest 'th size gizmos'
Richo
blaze said
04:06 PM Oct 18, 2012
radial ply tyres will always have a bulging sidewall, even with the right pressure. If you dont want a bulge in the side wall you will need to fit conventional ply tyres (and you dont want that as they are yesteryear design and old) OZJohn has given good advice. Check pressure cold and then when tyres are warm recheck pressure, there needs to be an increase in pressure of 4psi for correctly inflated tyres. If they are too low in pressure the temp of the tyre will incease as well as the pressure. So if when you do your check and the presure has increased 7 psi you need to put more pressure in the tyre when cold. Once you have done this (a lot of mucking around) you will have worked out the correct pressure for your tyre carry that weight at that time. This will change depending on water in tank and any thing else that will have a bearing on weight. For me I would just pump the buggers up to 55 psi and go vanning. cheers blaze
moblet said
07:28 PM Oct 19, 2012
The advice I've heard is that light truck tyres have more robust sidewalls, including with respect to punctures.
Happywanderer said
07:30 PM Oct 19, 2012
My tyres are light truck tyres on Myrtle. Well they are supposed to be but my other son says they are not. Funny because they were when I asked and paid for them in Echuca. I run them at 40.
Zoomtopz said
01:34 PM Oct 20, 2012
I asked my 'tyre bloke' Mike .
correct self - th 104/105 is load rating - at 900kg with duals it is 920kg.
correct self again - 50 to 55lbs per sq" is ok , but again it is dependent on your load.
Moblet is right , according to my bloke-he has done only tyres All his working life . 'lt' has 'firmer' wall
allthough I have 2 different type of Michies that I got off a bloke for 'old Inter' that look like 'car radials',
yet they were equiv to 7:00:16 & 7:50:16 , a normal 7:50:16 used to rub on tie rod , so I had to find
a tyre that "stood up" & not squatted like a normal radial . So yes at 40lb per sq" empty May be ok , at
1300kg , but as you add clothes , tucker , water , you are up to 1800.
Richo.
jimricho said
02:52 PM Oct 20, 2012
blaze wrote:
radial ply tyres will always have a bulging sidewall, even with the right pressure. If you dont want a bulge in the side wall you will need to fit conventional ply tyres (and you dont want that as they are yesteryear design and old) OZJohn has given good advice. Check pressure cold and then when tyres are warm recheck pressure, there needs to be an increase in pressure of 4psi for correctly inflated tyres. If they are too low in pressure the temp of the tyre will incease as well as the pressure. So if when you do your check and the presure has increased 7 psi you need to put more pressure in the tyre when cold. Once you have done this (a lot of mucking around) you will have worked out the correct pressure for your tyre carry that weight at that time. This will change depending on water in tank and any thing else that will have a bearing on weight. For me I would just pump the buggers up to 55 psi and go vanning. cheers blaze
I have tyre prerssure monitors fitted to my tug and have found that the 4psi rule is valid only if there is no significant difference (more than a few degrees) in the ambient temperature between when the two readings are taken. For example if the "cold" reading is done early in the morning before heading out and the "hot" reading were done later in the day when the ambient temperature could be 10 to 15 degrees higher there will be a rise in pressure due to this alone and a difference of 6psi or more could fool one into believing the tyre pressures were too low.
I'm inclined to agree with blaze...just pump them to 55 and don't worry.
I have a Galaxy 16ft single axle poptop van- weight empty 1360kg. I am looking for a tyre that has firm/stiff sidewalls. The tyres on the van at the moment are Toyo L/T 195 R14C -105/104S 8PR. These numbers don't mean much to me. I run the tyres at 55 psi and the side walls look soft and as if they are just off the road. My concern is that they may become damaged. Any suggestions? - Mike.
-- Edited by mikepam on Wednesday 17th of October 2012 11:33:54 PM
The Toyo's you're running are probably as good a tyres as you'll ever likely to get.
I ran the same model van and tyres with air con and battery pack for 7 years and found a tyre pressure of 60psi was spot on.
So without an air con or battery pack 55psi would be pretty close to the mark.
Also remember that your van (Like many others) has no shock absorbers and thus the tyres have to try and absorb all the road shock.
With stiff walls and/or stiff suspensions they can't do the job they're designed for.
A bit to much air is better than not enough.
Better to wear them out than blow them out. Hey!
Safe travels, Ozjohn.
-- Edited by ozjohn on Thursday 18th of October 2012 07:53:41 AM
-- Edited by ozjohn on Thursday 18th of October 2012 07:54:47 AM
- Thanks to all for that advice. I'll take your advice about the tyre pressures and see how it goes. Travelling if definitely on the cards. - Mike.
-- Edited by mikepam on Thursday 18th of October 2012 12:32:25 PM
Welcome to GN's Mike & Pam.
195 = about 7& a half "inches , so your tyre is 7 1/2 wide x 14" . 14 is the wheel size . lt = light truck tyre .
I think 40 psi , that's Just my thought . Check with tyre fitter , the 104-105 is the height of the wall,for rim to road .
Is van single axle or dual axle . Cause my train of thought 'lt' = a ton on each tyre . But as I said , when you go to
tyre fitter to check 'firmer walls' as them about th rest 'th size gizmos'
Richo
OZJohn has given good advice. Check pressure cold and then when tyres are warm recheck pressure, there needs to be an increase in pressure of 4psi for correctly inflated tyres. If they are too low in pressure the temp of the tyre will incease as well as the pressure. So if when you do your check and the presure has increased 7 psi you need to put more pressure in the tyre when cold. Once you have done this (a lot of mucking around) you will have worked out the correct pressure for your tyre carry that weight at that time. This will change depending on water in tank and any thing else that will have a bearing on weight. For me I would just pump the buggers up to 55 psi and go vanning.
cheers
blaze
The advice I've heard is that light truck tyres have more robust sidewalls, including with respect to punctures.
I asked my 'tyre bloke' Mike .
correct self - th 104/105 is load rating - at 900kg with duals it is 920kg.
correct self again - 50 to 55lbs per sq" is ok , but again it is dependent on your load.
Moblet is right , according to my bloke-he has done only tyres All his working life . 'lt' has 'firmer' wall
allthough I have 2 different type of Michies that I got off a bloke for 'old Inter' that look like 'car radials',
yet they were equiv to 7:00:16 & 7:50:16 , a normal 7:50:16 used to rub on tie rod , so I had to find
a tyre that "stood up" & not squatted like a normal radial . So yes at 40lb per sq" empty May be ok , at
1300kg , but as you add clothes , tucker , water , you are up to 1800.
Richo.
I have tyre prerssure monitors fitted to my tug and have found that the 4psi rule is valid only if there is no significant difference (more than a few degrees) in the ambient temperature between when the two readings are taken. For example if the "cold" reading is done early in the morning before heading out and the "hot" reading were done later in the day when the ambient temperature could be 10 to 15 degrees higher there will be a rise in pressure due to this alone and a difference of 6psi or more could fool one into believing the tyre pressures were too low.
I'm inclined to agree with blaze...just pump them to 55 and don't worry.
Thanks for advice pump up to 55psi and go vanning