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Hey guys

My B7 OEM tyres were 96Y rated on the 255/35/19 however now going up to 20" wheels, I can't seem to find tyres higher than 92Y on 255/30/20

Or best I've found on 265/30/20 are 94Y

What have those you of you who have gone from 19" to 20" opted for?

Cheers

Nils

I 'think' the I've run a Yokohama 265/35/r20 with a 99Y. Quite a rounded tyre so they fit ok, if memory serves me. Best try some test fit/measuring.

I've also tracked GY F1s 255/35/r20 94Y stretched on 20x9.5s - they were actually really good and my car is probably heavier than yours.

I'm hoping to go 255/30/20 on my 9j wheels so that's good to hear, I don't track mine either

Cheers Bam

I run 92y on my 20".......no issues

Had the exact same dilemma on my c6 when i switched 19 to 20's. I'm running 255/30/20 on a 92y for a year now with no issues, my c6 must be way heavier so can't see a problem

I thought the C6 ran 275 section, why you running 255s?

I'm running 92Y XL on mine.

I'm running 265/30/20 94Y for two reasons, like you I can only find 92Y tyre load rating on 255/30 tyres and the 265/30s are a little closer at 94Y. Secondly, the speedometer reads more accurate with 265/30s.

bam_bam wrote:I thought the C6 ran 275 section, why you running 255s?

Coz its my daily oil burner

Ahhh.

Bam, I think he is saying it's not an RS6 .

Yeah. Hence my "ahhh". It's funny how we all just assume any post is referring to an RS.

nij wrote:I'm running 265/30/20 94Y for two reasons, like you I can only find 92Y tyre load rating on 255/30 tyres and the 265/30s are a little closer at 94Y. Secondly, the speedometer reads more accurate with 265/30s.

My last set of tyres were 265/30/20and 94Y like you. But why do you say they are more accurate? 255/30/20 will read exactly the same as OEM tyres but 265 will introduce a slight error due to the size difference. Are you saying the OEM tyres are not the most accurate size?

MikeFish wrote:

nij wrote:I'm running 265/30/20 94Y for two reasons, like you I can only find 92Y tyre load rating on 255/30 tyres and the 265/30s are a little closer at 94Y. Secondly, the speedometer reads more accurate with 265/30s.

My last set of tyres were 265/30/20and 94Y like you. But why do you say they are more accurate? 255/30/20 will read exactly the same as OEM tyres but 265 will introduce a slight error due to the size difference. Are you saying the OEM tyres are not the most accurate size?

I know the gearing will be slightly out, but what I ment was more accurate to the true speed you're travelling. Almost all speedos under read by about 10%, therefore when it reads 30mph, you're only really travelling at about 27mph. If you ever pass one of those "Your Speed" signs, you'll know what I mean. You could also check your Sat Nav speed in "Engineer Mode" in your RNS-E, which is more accurate and it isn't affected by tyre wear.

nij wrote:

MikeFish wrote:

nij wrote:I'm running 265/30/20 94Y for two reasons, like you I can only find 92Y tyre load rating on 255/30 tyres and the 265/30s are a little closer at 94Y. Secondly, the speedometer reads more accurate with 265/30s.

My last set of tyres were 265/30/20and 94Y like you. But why do you say they are more accurate? 255/30/20 will read exactly the same as OEM tyres but 265 will introduce a slight error due to the size difference. Are you saying the OEM tyres are not the most accurate size?

I know the gearing will be slightly out, but what I ment was more accurate to the true speed you're travelling. Almost all speedos under read by about 10%, therefore when it reads 30mph, you're only really travelling at about 27mph. If you ever pass one of those "Your Speed" signs, you'll know what I mean. You could also check your Sat Nav speed in "Engineer Mode" in your RNS-E, which is more accurate and it isn't affected by tyre wear.

haha when I pass those signs at 30mph it says 30mph???? sure your alloys aren't square fella