Pot Holes, Tyres & Pressures?

[Tha Ulsterscot]

Like a lot of places the roads around here are atrocious, can't go anywhere in a straight line avoiding the holes. My Shogun was on low profile tyres, which made it very solid on bumps. So I got the chance of a set of deeper tyres and rims which have greatly improved the ride. Current pressure is 40 psi, but how low could this go to further improve ride without wrecking the tyres?

 

[michael N123]

just got the woman a qashqai on 18inch wheels and the tyres are my new big worry

 

[steveR]

just got the woman a qashqai on 18inch wheels and the tyres are my new big worry

And the rims....

 

[Welderloon]

Use the tractor, that is the go to vehicle around here now based on the state of the roads - Like fkn Gaza

 

[Cvx1170]

25 to 30psi

 

[Michael S]

Like a lot of places the roads around here are atrocious, can't go anywhere in a straight line avoiding the holes. My Shogun was on low profile tyres, which made it very solid on bumps. So I got the chance of a set of deeper tyres and rims which have greatly improved the ride. Current pressure is 40 psi, but how low could this go to further improve ride without wrecking the tyres?

Assuming that you have a tyre size that was an original fitment I'd look in the instruction book or label on the door slam area.

 

[GeorgeK]

Keep dropping the pressure until they smoke when you're driving, then add 3 psi.

 

[agrimax]

40 psi sounds rather high unless it's a long wheelbase that's fully laden all the time? Would have thought 30-35 psi would be a better figure.

 

[Wisconsonian]

If you know the axle weights, you might find a tire pressure chart based on weight, and use that pressure with zero safety margin. It might come out higher than 25psi, but you know you're safe.

 

[milkloss]

I’d aim for the 30 odd psi range.

 

[bravheart]

For insurance purposes I would be sticking to the list of tyres on the door pillar or fuel tank lid and keeping them within the pressure range listed for load.

 

[Wisconsonian]

Or, fill them on the hottest day of the year, with a "friendly" gauge: https://en.wikipedia.org/wiki/Deflategate

 

[Fendtbro]

Is the suspension tired and saggy? Screw it up a bit, fit taller soft springs?

 

[Tha Ulsterscot]

3 bar is on the door for trailer work with 2.3 for other driving. With the low profiles on there was no flex in the walls, whereas the deeper walls give more when you hit a hole, so will try a bit lower pressure. just wondering about wear. Normally do a lot of trailer work, this is just for a bit of cruising now and again.

 

[CPF]

Like a lot of places the roads around here are atrocious, can't go anywhere in a straight line avoiding the holes. My Shogun was on low profile tyres, which made it very solid on bumps. So I got the chance of a set of deeper tyres and rims which have greatly improved the ride. Current pressure is 40 psi, but how low could this go to further improve ride without wrecking the tyres?

Yesterday was cruising along on is road in wet 60/70 kph
If the road is bad I would drop the pressure down to 20 psi.