Jump to content

Server Lease Renewal/Software Licenses

Our yearly server lease, software licenses, as well as hardware operating costs, ARE due Dec 6th, 2021. Our current donations have fallen far short of the funds we need to renew. Please remember the RennTech.org community is Member supported so please consider a donation to help...  THANK YOU!

Welcome to RennTech.org Community, Guest

There are many great features available to you once you register at RennTech.org
You are free to view posts here, but you must log in to reply to existing posts, or to start your own new topic. Like most online communities, there are costs involved to maintain a site like this - so we encourage our members to donate. All donations go to the costs operating and maintaining this site. We prefer that guests take part in our community and we offer a lot in return to those willing to join our corner of the Porsche world. This site is 99 percent member supported (less than 1 percent comes from advertising) - so please consider an annual donation to keep this site running.

Here are some of the features available - once you register at RennTech.org

  • View Classified Ads
  • DIY Tutorials
  • Porsche TSB Listings (limited)
  • VIN Decoder
  • Special Offers
  • OBD II P-Codes
  • Paint Codes
  • Registry
  • Videos System
  • View Reviews
  • and get rid of this welcome message

It takes just a few minutes to register, and it's FREE

Contributing Members also get these additional benefits:
(you become a Contributing Member by donating money to the operation of this site)

  • No ads - advertisements are removed
  • Access the Contributors Only Forum
  • Contributing Members Only Downloads
  • Send attachments with PMs
  • All image/file storage limits are substantially increased for all Contributing Members
  • Option Codes Lookup
  • VIN Option Lookups (limited)

Porsche Rims

Recommended Posts

Can anyone give me some info on 2 types of porsche rims and are they a problem

Also what tire size is required going from 18" to 19" so that it doesn't interfere with abs system

1...........Porsche iForged 19" wheels

2..........19 inch ZoneOne Luxury Forged Porsche Wheels



Link to comment
Share on other sites

I'm not sure I understand your question? When changing wheel diameter, it is important to maintain the same (or reasonably similar) rolling diameter (the actual circumference of the outside of the tire). This is important for proper ABS/ PSM function, as well as speedometer and odometer accuracy.

I'm not familiar with either of the wheels you mentioned, but if you post back with their dimensions (i..e 18x10, 18X8, etc.) and their offset (ET) we can help you. Typically the front will be an 18x8 or 19x8 or 8.5, ET50, while the rear will be 18x10 or 19x10 ET65 if a narrow body car, or 18x11 or 19x11 ET40 if a widebody.

WIth tire size, it is important that the front and rear be close in rolling diameter so that the ABS/ PSM can function properly. You can go smaller or larger and obtain minor gearing differences, but will now suffer odometer and speedometer error. The common size is 225/40-18 and 265/35-18 or 285/30-18.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.