New Tyres - Now ZR ??

I got a new tyre fitted a few months ago and noticed the same thing. The new one looks exactly like the originals but is ZR rated. I'm on 19s too.

Contis ?

Rob2k68 said:

Contis ?

Click to expand...

No need to be offensive Rob....

This is the official explanation on the Audi sight regarding AO designated tyres....




Ao
Specially created for each Audi model and manufactured using the latest materials and testing criteria, Audi Genuine tyres ensure both wheel rim and tyre are coordinated to meet our exacting requirements.

To achieve the ‘AO’ marking for every model Audi Genuine tyres have to undergo around 50 performance criteria tests.

This is considerably more stringent than statutory tyre regulations.

Audi Genuine tyres are at the forefront when it comes to safety, comfort and driving on any road surface.

Speed Symbol "N" For vehicles with a speed capability not exceeding 140 Km/h (88 Mph)
Speed Symbol "P" For vehicles with a speed capability not exceeding 150 Km/h (94 Mph)
Speed Symbol "Q" For vehicles with a speed capability not exceeding 160 Km/h (100 Mph)
Speed Symbol "R" For vehicles with a speed capability not exceeding 170 Km/h (106 Mph)
Speed Symbol "S" For vehicles with a speed capability not exceeding 180 Km/h (113 Mph)
Speed Symbol "T" For vehicles with a speed capability not exceeding 190 Km/h (119 Mph)
Speed Symbol "U" For vehicles with a speed capability not exceeding 200 Km/h (125 Mph)
Speed Symbol "H" For vehicles with a speed capability not exceeding 210 Km/h (130 Mph)
Speed Symbol "V" For vehicles with a speed capability not exceeding 240 Km/h (e.g. 225/55 R 15 91V)
Speed Symbol "W" For vehicles having speed capability not exceeding 270 Km/h (e.g. 225/60 R 15 96W)
Speed Symbol "Y" For vehicles having speed capability not exceeding 300 Km/h (e.g. 275/40 R 18 94Y)
Speed Category "VR" For vehicles having speed capability over 210 Km/h (e.g. 195/50 VR 15)
Speed Category "ZR" For vehicles with a speed capability over 240 Km/h (e.g. 205/40 ZR 17)
ZR+ Speed Symbol "W" Tyres marked with both designations for vehicles with speed capability over 240 Km/h but not exceeding 270 Km/h
ZR+ Speed Symbol "Y" Tyres marked with both designations for vehicles with speed capability over 240 Km/h but not exceeding 300 Km/h

ignoring the DOT (so long as its relatively recent anyway) and ignoring the AO...

hope that helps.

The 91 Y is the load and speed rating. ZR is a bit slower but there is something about a ZR and Y together, which you seem to have, which gives a different speed rating. The speed rating is still high enough for the car so I wouldn't worry.

i need 4 new tyres after 10k! . . . coming from bikes and needing tyres every 1k, but only doing that a year, to a car needing 4 every 6 months lol...

im so glad i get mine at cost price!

I eventually bought a new set for my B8 S4 and ended up finding the AA and up North they use National Tyres - that was just for Pirelli PZero Rosso - ie same as fitted at factory and I get (19") £80 LoveToShop vouchers sometime within the next 14 days they say! The tyres were as ordered, I asked to check the tyres before handing the wheels over (saves any problem later) and they were AO tyres, National Tyres should really either get the correct equipment or train their fitted how to remove and fit tyres without marking the wheels - I have a "clamp/grip" mark on the outside of every wheel now - no point in talking to them about it though, just remember to avoid them next time! Three of the new tyres have the same manufacture date and the fourth is about 6 months earlier - and that one has about 0.5mm less tread! This all reminds me about buying a pair of P6000 for my VX Cav GSI 2000 16V 4X4 lots of years ago - new tyres ended up annoying the 4X4 system as they had a smaller rolling radius than the part used other pair!! About 20 years later I might have discovered Pirelli are still a bit like that - how annoying!