Let us know how you get on Robin
2008 Range Rover Sport TDV8
Gone:
Jaguar S-Type V8 4.2 Sport
MGZTT 190 2.5

hey it's me (airc909)

i couldnt access my account so had to make a new one

i think it rides better on the 45s especially if you hit a pot hole or something

but it does seem to have a little bit more body roll

can put some pics up if anyone wants to see

Pics would be good if you have time. I'm thinking about 45s next time. I currently have Uniroyal Rainsport 3s with 40 profile and with all the potholes around these days I think that extra 5 would be a good move. What make did you go for?

davidfo wrote:

Just read this post with interest, as I have a slightly different question.

I had General Grabbers 275/40 20 on the RRS 5.0 SC, and looked for a reasonable replacement for summer. Knowing we have a lot of wet weather also, I chose Uniroyal Rainsport 3 and went up 5 - 275/45 20.

Had them fitted yesterday, the ride is noticeably smoother, the extra 5 mutes most imperfections in the road I felt more on the 40. However, I put my foot down to overtake this morning going round a corner and an indicator came up telling me to stop the car with an arrow facing outward either side of a graphic of the car I believe.

I restarted and all was fine, but it was a bit unnerving and I am wondering is this due to the extra 5 on the sidewall?, does the computer have to adjust over time to this?.

Thanks.

Toyo Proxies but only because i found a relatively cheap part worn set of 4 (for £120)

just wanted to try it out to be honest

seems to be a bit more road noise in the cabin than before but probably due to the tyres being quite worn (obviously not illegal)

i think eventually i will go for a brand new set, not sure on the make but apparently the falken's get good reviews

https://unsee.cc/16228722

We had 45s fitted a couple of months ago and now that we have driven a few hundred miles the verdict is good (edited to add 'Falkens'):

Quieter, smoother and much better feed back through the steering wheel:

Click image to enlarge

clean

there she blows

Why not 255/55R20s? --
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear
2015 Range Rover Sport Supercharged V8 HSE Dynamic



Defender Puma Workshop Manual: https://bit.ly/2zZ1en9
Discovery 4 Workshop Manual: https://bit.ly/2zXrtKO
Range Rover/Sport L320/L322/L494 Workshop Manual: https://bit.ly/2zc58JQ

totally wrong size

how do you figure?

I'm running 255/55R20s on mine, unless that size doesn't fit on the L320 model? --
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear
2015 Range Rover Sport Supercharged V8 HSE Dynamic



Defender Puma Workshop Manual: https://bit.ly/2zZ1en9
Discovery 4 Workshop Manual: https://bit.ly/2zXrtKO
Range Rover/Sport L320/L322/L494 Workshop Manual: https://bit.ly/2zc58JQ

After suffering the stiff ride, crashing pot holes, and oh too easily kerbed wheels.
I have now followed the general recommendations from team RRS and fitted 45 profile tyres.
The 275/45 Kumho's immediately felt better. A softer ride, rode the potholes better and filled the arches better too.
result  SDV6 HSE 2012 Black

I'm definitely going for 45s (at least) next time.

And a further thought about the problem I posted with my Uniroyals, I've increased the pressure in the tyres a bit (to the recommended pressure for 5 adults plus luggage) and the wander has all but gone Robin
2008 Range Rover Sport TDV8
Gone:
Jaguar S-Type V8 4.2 Sport
MGZTT 190 2.5

45s for made, made a big difference to the ride.