Welcome to 911UK
The only place for Porsche, 911uk is the definitive enthusiast and resource site for the Porsche 911.
Registration is fast, simple and absolutely free, so join up today for full access to the site and benefit from latest member offers.

Porsche Classifieds
Porsche Buyers Guides
Sell Your Porsche on 911uk
Create a Free Classified Advert
Search Ads
Classified Adverts FAQ
Trade Classified Information
Buyer & Seller Fraud Protection
Consumer Rights Act
Pre Purchase Inspection (PPI)
Porsche Car Sourcing
Porsche Cars Wanted
Official Porsche Centre Reviews
Model
Stock
Porsche 911
991 : 2011- 22
997 : 2004- 84
996 : 1997-2005 47
993 : 1993-1998 5
964 : 1989-1993 3
Carrera 3.2 : 1983-1989 0
Carrera SC : 1977-1983 2
930 Turbo : 1975-1989 0
Early 911 : 1964-1977 3
Porsche Other Models
Classic : 1950-1965 0
Boxster : 1997- 14
Cayman : 2005- 16
Cayenne : 2003- 8
Macan : 2014- 0
Panamera : 2009- 1
912-914-924-928-944-968 1
959 - CarreraGT - RaceCar 1
Car Parts For Sale & Wanted
Other Items For Sale & Wanted
Wheels Tyres For Sale & Wanted
Number Plates For Sale Wanted

Porsche Services
Porsche Body Shop Repair
Paint Protection & Wrapping
Porsche Classic Insurance
Porsche Classic Parts
Porsche Classic Restoration
Porsche Design Collection
Porsche Engine Gearbox Rebuild
Porsche Heritage & History
Porsche News
Porsche Picture Gallery
Win a New Porsche 911

Porsche Parts
Body Parts, Body Styling
Brakes, Clearance
Electrical, Exhausts
Engine Cooling, Engine Electrical
Engine Rebuild, Heating Cooling
Interior Incar, Lighting
Rubber Seals, Service Parts
Steering, Suspension
Transmission, Workshop Tools
Early 911, 911 - 930, 928 - 968
964 - 993, 996 - 997, Boxster
Cayman, Cayenne, Panamera

Porsche Model Range
911 [991] 2011-Current
Porsche 911 [991]
911 [997] 2004-Current
Porsche 911 [997]
911 [GT] GT1-GT2-GT3
Porsche 911 [GT]
911 [996] 1997-2005
Porsche 911 [996]
911 [993] 1993-1998
Porsche 911 [993]
911 [RS] RS-RSR
Porsche 911 [RS]
911 [964] 1989-1993
Porsche 911 [964]
911 3.2 1983-1989
Porsche 911 3.2 Carrera
911 SC 1977-1983
Porsche 911 SC
911 [Early] 1964-1977
Porsche 911 [Early]
Boxster & Cayman
Porsche Boxster & Cayman
Cayenne & Panamera
Porsche Cayenne & Panamera

911uk Site Partners

Post new topic   Reply to topic
Author Message
Scubadiver
Newbie


Joined: 03 Jun 2017
Posts: 49
Location: Norfolk, UK


PostPosted: Mon Dec 11, 2017 10:04 am    Post subject: Tyre sizes and types. Reply with quote

I'm looking at changing the tyres on my 2003 Cayenne Turbo and have a couple of questions..

It's currently fitted with the budget brands it came with (Accelera on the front and Roadstar on the rear) in 275/40 20. I don't have anything to compare it with, but having budget tyres on a car like this makes me feel like I'm not doing it the justice it deserves. I wouldn't say that I've noticed any problems as such like lack of grip, but I've always thought the ride is quite harsh even in 'comfort' mode. Are Turbos with 20" just like this? Or might tyre make (rather than profile) play a part?

Looking for possible replacements, my gut feeling is to go for the recommended 'N' rated Michelin (are these the factory tyre?)

https://www.national.co.uk/tyres/brand/michelin/4x4-diamaris/

But these caught my eye too due to the better pricing and better wet and equivalent noise rating:

https://www.blackcircles.com/catalogue/avon/zx7/275/40/R20/Y/106/f?tyre=34752033

Any reason to go for the Michelin over the Avon?

Also, I noticed when searching for tyres by registration number, that there seems to be an implication that I should have 275s on the front, but 295s on the rear. Is this so?

Thanks in advance for any thoughts!
 
  
View user's profile Send private message
   
911UK
Porsche Community
Porsche Community


Joined: 15 May 2002
Posts: 9797
Location: 911UK

1997 Porsche 993 Carrera 2

PostPosted: Mon Dec 11, 2017 10:29 am    Post subject: Reply with quote

Avoid Avon Tyres, stick to the N rated Porsche Tyre program and that is from actual experience of running a Cayenne Turbo and running a set of Michelin N Rated Diamaris 4x4 Tyres

https://www.porsche.com/uk/accessoriesandservice/porscheservice/vehicleinformation/tyreapproval/

Front and rear tyres are the same

275/40R20 106 Y
_________________
Get a Porsche Car Insurance Quote


FOLLOW 911UK ON FACEBOOK
 



2017-12-11_10-28-13.jpg
 Description:
 Filesize:  128.87 KB
 Viewed:  2088 Time(s)

2017-12-11_10-28-13.jpg


  
View user's profile Send private message Send e-mail Visit poster's website
   
Scubadiver
Newbie


Joined: 03 Jun 2017
Posts: 49
Location: Norfolk, UK


PostPosted: Mon Dec 11, 2017 8:20 pm    Post subject: Reply with quote

Perfect answer, thanks very much!
 
  
View user's profile Send private message
   
Display posts from previous:   
Post new topic   Reply to topic   All times are GMT - 12 Hours
Page 1 of 1

 
Jump to:  

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
You can post calendar events in this forum