Offset can differ per car model. Check your orig mags, the offset is usually stamped at the back of the rim. If you go too wide, then may place extra stress on your suspension bushings.
Other things affected by too wide a rim:
Handling- adds on unsprung weight, changes orig track width
Braking- too much tire for stock brakes
Tire clearance- tire may rub against the inside fender/ suspension
paglumiliko ka baka at full lock di na pumaok gulong mo sa fender kasi sobra palabas. wheel bearings. if you go wider make sure ung paglapad ng rim going inside and going out. kasi pag palabas yung lapad sobra stress nun sa wheel bearings, suspinson components.
i could avoid tire clearance problems by taking my rig higher tru suspension or body lifts. pano naman ung sinasabi ni bubbles? how to avoid it? diba merong nilalagay in between the wheels? ano yun? yun ba yung pang correct ng offset?or nalilito ako.