Porsche Rims

[gibby]

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

Thanks

Ron

[Cloudsurfer]

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.