RhubarbCrumble
Member
Tried the search function but couldn’t find an answer about implications of going for a 109 rather than a 103….
The higher load rating will be able to resist overheating at higher loads than required. This inevitably creates a stiffer sidewall and with that, a firmer ride.
However, higher rated tyres tend to be used on heavier vehicles at higher pressures. Used on a lighter vehicle, at lower pressures it's unlikely to make much of a difference and if it does, I've yet to see an exact figure. What I mean by that is that a tyre designed to carry 10% more load won't feel 10% firmer.
Going to a higher rated tyre will give you many more options. If you go for a larger tyre, something like a 235/65/17 for example, you can run them at slightly lower pressure than the standard sizes. This would probably cancel out any perceived increase in stiffness from a higher load rating.
However, higher rated tyres tend to be used on heavier vehicles at higher pressures. Used on a lighter vehicle, at lower pressures it's unlikely to make much of a difference and if it does, I've yet to see an exact figure. What I mean by that is that a tyre designed to carry 10% more load won't feel 10% firmer.
Going to a higher rated tyre will give you many more options. If you go for a larger tyre, something like a 235/65/17 for example, you can run them at slightly lower pressure than the standard sizes. This would probably cancel out any perceived increase in stiffness from a higher load rating.
RhubarbCrumble
Member
Thanks very much
colinthechemist
Member
Tyre pressure recommendations?
I'm just getting some BFG All Terrain's fitted to replace my worn-out Cooper Discoverers.
They're both the same size (245/65/R17) but as non-standard tyres I've never known the correct pressure.
I'm setting off tomorrow to drive fully-loaded to Italy, so want to be sure I've got it right!
Any suggestions?
I'm just getting some BFG All Terrain's fitted to replace my worn-out Cooper Discoverers.
They're both the same size (245/65/R17) but as non-standard tyres I've never known the correct pressure.
I'm setting off tomorrow to drive fully-loaded to Italy, so want to be sure I've got it right!
Any suggestions?
There is but it won't cover the 245/65 tyre size.
This is a good guide:
I'm running 45psi on 245/64R17 Falken Wildpeak at3wa tyres.
This is a good guide:
I'm running 45psi on 245/64R17 Falken Wildpeak at3wa tyres.
How did you get on with the BFG (245/65/R17) tyres - where they on a T6? Sorry if I missed that bit. Thanks
Evening - what you decide to do in the end?
I run a T32 Kombi with 215/60 R17 107/109T and they're reaching the end of their life. The van isn't loaded very often and I find it a harsh (and noisy) ride. Just looking at tyre options, along with advice.
Find a tyre comparison site there are few, then enter all the standard manufacturers tyre details in the first table for comparison including recommended pressure, then in the cosponsoring table put in all the known details of a tyre that you are considering. The comparator will highlight any differences in tyre size, speedometer readings at certain speeds percentage increase of speed and so on. Also a new tyre pressure recommendation for the new tyre will also be available.
I thought max psi for the wildpeaks was 40?
Do you mean the "Never exceed 40psi to seat beads" warning on the tyre? That's not the max pressure for the tyre.
Depends on your van, weight etc. I see you have a camper, do you know what it weighs?
Mine is a Caravelle which as standard is 2400kg unladen, over removed the 100kg rear bench but added back in probably 200kg of kitchen, fridge, roof rack, bed.... And that's before it's packed up with a bike, water, and luggage etc for a trip!!
I've just put these on my Devonports for winter, not sure about the pressures, think the garage put too much in as they feel less comfortable than my 20s do normally
I didn't like the body roll, so I had uprated anti roll bars fitted. That meant I got a smoother ride tan low profile tyres, and no body roll
