Re: Tyre/Wheel sizes - Saab 9-5 Bulletin Board - Saabnet.com
The banner above is an advertisment - if it asks you to download software, please ignore.
Site News - 4/9 Saab Owners' Convention Day Pass Raffle | 3/26 M Car Covers (by State of Nine)

[General | Members | C900 | 9000 | NG900 & OG93 | 93 | 95 | NG95 | 99 | Sonett | Vintage Models | Clubs | Other Cars | FAQs | Gifts | Member Photo Galleries | Member Directory | Classifieds | Manuals | *Buddy Registry | *Mileage Registry | Polls | What's New | Raffle | Photo of the Month | Sponsors]

95 Bulletin Board
1999-2009 [Subscribe to Daily Digest]
(Search Author's Posts: e.g. Keyword:username)*Members Only


[Main 95 Bulletin Board | BBFAQ | Prev by Date | Next by Date | Post Followup ] Member Login / Signup - Members see fewer ads. - Latest Member Gallery Photos
Re: Tyre/Wheel sizes
Like This Post: - Subscribe to Daily Digest for this Bulletin Board
Posted by MarkUK [Email] (more from MarkUK) on Tue, 13 Nov 2012 05:49:29 Share Post by Email
In Reply to: Re: Tyre/Wheel sizes, Snowmobile [Profile/Gallery] , Mon, 12 Nov 2012 11:44:06
Alert me when someone posts in this thread:
Members do not see ads below this line. - Help Keep This Site Online - Signup

I use the UK spelling but for yanks who are puzzled tyre = tire.... I'm actually an Aussie living in UK.
I don't do a lot of snow and ice, more for the cold weather performance and the occaisional snow and ice, with the odd trip into Europe for skiing. It sure has done me well the last two winters in UK when most could not get their cars on to the road (they don't use winter tyres here-amazing!!), I guess Saabs are made for it!!
Certainly the larger 215/55/16 would be better except in deep snow (don't do that), where the thinner tyre may be better.
I don't why I didn't think of it before, but a few minutes in a spreadsheet gave me the table below, I wondered why the 205s looked big in the wheel arch! Certainly the GPS (tomtom) road speed was an exact match for the 205s on the car speedo where the 225/45/17s at 60mph gps has the car speedo on 56/57.

A B C D E
2 Width aspect rim diameter mm Circ mm Circ feet n inches
3 205 60 16 652.4 2050 6' 8.5"
4 215 55 16 642.9 2020 6' 7.5"
5 225 45 17 634.3 1993 6' 6.5"
6 235 45 17 643.3 2021 6' 7.5"

Formula in excel for the diameter is: =(D5*25.4)+((B5*(C5/100))*2)

Bottom line is larger circumference equals easier fuel consumption and probably more miles to the tyre. I don't think the performance has been affected by much, it is a bit hard to tell with 300bhp trying to rip the road up!!
I will think about the next set of summer tyres being 235s.
Currently running Goodyear Eagle F1 Asymmetric 2 - BRILLIANT!


posted by 94.72.24...


Posts in this Thread:
Alert me when someone posts in this thread:
Members do not see ads below this line. - Help Keep This Site Online - Signup
Post a Followup

No Site Registration is Required to Post - Site Membership is optional (Member Features List), but helps to keep the site online
for all Saabers. If the site helps you, please consider helping the site by becoming a member.

Name: Member Login / Signup - Members see fewer ads. - Latest Member Gallery Photos
E-Mail: (Optional)
Re-Enter E-Mail: (Confidential & Secure - Not revealed to other users!)
Note: Please check your spam folder for BB responses.

Subject:

Posting rules are simple - No for sale/wanted ads may be posted here - use the site classifieds.
You may not cross-post your message to multiple BBs.
Not permitted: political/religious topics and being disrespectful (personal attacks, insults, etc...).
Site Members do not see any red text, inline ad links, bottom of page anchor ads, box ads, or anti-spam check.

Message: (please no for sale/wanted classifieds - post those in the Saabnet.com Classifieds)
Links are now automatically made active, no need for any special code (or use the Option Link field below) - don't put links in () or end with a '.'
To add inline images to your post, use [img]http://www.domain.com/img.jpg[endimg] (or use the Optional Image Link field below).


Links are now automatically made active, no need for any special code (or use the Option Link field below) - don't put links in () or end with a '.'
To add inline images to your post above, use [img]http://www.domain.com/img.jpg[endimg] (or use the Optional Image Link field below).

Optional Link: (e.g. http://www.saabnet.com/)
Link Title: (Optional)
Optional Photo/Image Link: (e.g. http://www.saabnet.com/img.jpg)
Photo/Image to Upload: (Please be patient while file uploads)





StateOfNine.com
SaabClub.com
Jak Stoll Performance
M Car Covers
Ad Available

The content on this site may not be republished without permission. Copyright © 1988-2024 - The Saab Network - saabnet.com.
For usage guidelines, see the Mission & Privacy Notice.
[Contact | Site Map | Saabnet.com on Facebook | Saabnet.com on Twitter | Shop Amazon via TSN | Site Donations]

Random Saabnet.com Member Gallery Photos (Click Image)

This is a moderated bulletin board - Posting is a privilege, not a right. Unsolicited commercial postings are not allowed (no spam). Please, no For Sale or Wanted postings, SERIOUSLY. Classifieds are to be listed in The Saab Network Classifieds pages. This is a problem solving forum for over 250,000 Saab owners, so expect to see problems discussed here even though our cars are generally very reliable. This is not an anything goes type of forum. Saabnet.com has been a moderated forum since 1988. For usage guidelines, see the Saabnet.com Mission and Purpose Page. Please remember that you are not anonymous. Site Contact | Site Donations | Other Sites by SP - Poverty2Prosperity.org | Run Club Menlo Park | ScreenBot



Site Members do not see red text instructions, bottom of the page anchor ads, or box ads.
Click here to see all the Site Membership Benefits!