Quote:
Originally Posted by Orient330iNYC
1) yes, as long as your overall diameter is about the same. stock sizes are:
21- 285/45/21
22-275/40/22F 315/35/22R
23-275/35/23F 315/30/23R
they are all roughly the same diameter. every drop in rim side has aprox a 5% increase in aspect ratio, cancelling out the rim size change with an increase in sidewall height.
2) you should stay as close to stock size as possible. you absolutely want the same diameter (or as close as possible) front to rear if you do a staggered setup.
3) as the other poster noted, 20" is an OEM size in other markets.
the only issue you need to be aware of is caliper clearance if you have and M50/M60i or a 40i with Msport brakes. at 20" some designs wont fit or have very little clearance. my snow tire set is 20" but due to the design i have alot of clearance. stock 20" tire sizes are 255/55/20 or 275/50/20.
4) as long as you stick to stock sizes you should be fine.
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Thanks so much for explaniation, some of questions are actually raised from your answer in another post
I assume you will have plenty of experience on swapping tires/rims.
In your opinion, for 23 G07, in long term and to save time, $ and efforts, do you recommend to have 21" A/S or 20" A/S as main wheel sets?
What wheel specs should I look to if looking for non-OEM? Beacuse I saw some rims had different options for offset value +31mm vs +30mm, does this matter?