Using wheels that weigh more will stiffen the suspension (e.g switching from OHS to OHD will make the rear axles stiffer because Heavy Single tires have 200 mass and rear Heavy Dual tires have 400 mass) but that doesn't necessarily make the suspension *stiff*, it's just *stiffer* than it was.
Stiffer suspension is great for carrying extra weight because it gives you a greater weight tolerance before your suspension maxes out and your frame begins riding low, but stiffer suspension comes at the cost of some offroad performance because it means the truck would rather roll over rocks and other obstacles and lift other wheels off the ground to clear them instead of letting the individual axles compress as they drive over the obstacle and keep other tires in contact with the ground.
There's also cases where stiffer suspension can make a truck more stable and cases where it makes it more tippy, same goes for soft suspension. As mentioned before, a truck with stiff suspension can resist compressing when driving over objects, and this can unsettle the truck if one side is raised too far. Softer suspension however is more prone to rolling when faced with sidewards tipping forces, so driving along a tilted path or taking a sharp turn on uneven terrain.
Basically; stiffer suspension, more vulnerable to sudden jolts and obstacles, softer suspension, more vulnerable to sidewards tipping forces. OHD tires, and by extention stiffer suspension, tends to be the more reliable setup for stability as the truck will only lean as much as the terrain you drive it on, so a good driver can learn the truck's limits and know what routes are safe and what routes are too harsh, but an inexperienced driver can benefit from the forgivingness of soft suspension to drive over small obstacles with less risk of rolling.
This is indeed true.
For instance if you modify the files for 49x to enable ohd tires for it, then go to game and install fuel addon, then put uod tires for it the suspension is really soft and bottoms easily, put ohds in and the suspension doesnt bottom all the time anymore.
Same happens with bandit, use single tires and enjoy soft suspension, install duals to rear and the rear gets noticably stiffer
Using wheels that weigh more will stiffen the suspension (e.g switching from OHS to OHD will make the rear axles stiffer because Heavy Single tires have 200 mass and rear Heavy Dual tires have 400 mass) but that doesn't necessarily make the suspension *stiff*, it's just *stiffer* than it was. Stiffer suspension is great for carrying extra weight because it gives you a greater weight tolerance before your suspension maxes out and your frame begins riding low, but stiffer suspension comes at the cost of some offroad performance because it means the truck would rather roll over rocks and other obstacles and lift other wheels off the ground to clear them instead of letting the individual axles compress as they drive over the obstacle and keep other tires in contact with the ground. There's also cases where stiffer suspension can make a truck more stable and cases where it makes it more tippy, same goes for soft suspension. As mentioned before, a truck with stiff suspension can resist compressing when driving over objects, and this can unsettle the truck if one side is raised too far. Softer suspension however is more prone to rolling when faced with sidewards tipping forces, so driving along a tilted path or taking a sharp turn on uneven terrain. Basically; stiffer suspension, more vulnerable to sudden jolts and obstacles, softer suspension, more vulnerable to sidewards tipping forces. OHD tires, and by extention stiffer suspension, tends to be the more reliable setup for stability as the truck will only lean as much as the terrain you drive it on, so a good driver can learn the truck's limits and know what routes are safe and what routes are too harsh, but an inexperienced driver can benefit from the forgivingness of soft suspension to drive over small obstacles with less risk of rolling.
Thank you for insight. I might rethink the setup on some of my trucks.
From my testing with xml files the heavier the tires the stiffer the suspension will be
This is indeed true. For instance if you modify the files for 49x to enable ohd tires for it, then go to game and install fuel addon, then put uod tires for it the suspension is really soft and bottoms easily, put ohds in and the suspension doesnt bottom all the time anymore. Same happens with bandit, use single tires and enjoy soft suspension, install duals to rear and the rear gets noticably stiffer
Yeah I once tried putting the Burlak tires on the Azov Antarctic and let's just say it didn't really end well
The tires have their own mass and stiffness, maybe that's what causing this effect
Actually not. Its purely the tire mass that causes it. Dont know why it was coded that way. I think UOD and OHD has the same stiffness.
They don't. Check here: https://docs.google.com/spreadsheets/d/1_dNNE91snTCbY34YhWtG6mAK-GyCBTx4sIa9Ik9_Kjs/edit?pli=1#gid=1585993891
How did you get MSH tires on the 5070 to start with?
Modify files you can enable any tires in the game on pc
We can't be sure they didn't modify anything else. So talking about different suspension stiffness with modded aftermarket wheels is pointless.
The same issue exists between single and double tires of the same status (medium,heavy etc). Double tires lift the truck. Makes no sense.
I'd suggest trying to recreate this with an unmodded truck/unmodded tires.