GenVibe - Community for Pontiac Vibe Enthusiasts

hey whats the numbers mean? like 205/45/18? thank you

http://forums.genvibe.com/zerothread?id=7087 is in the "Recommended Reading" list

Ok heres what i got The 205 indicates this tire is 205 millimeters across from the widest point of its outer sidewall to the widest point of its inner sidewall when mounted and measured on a specified width wheel. This measurement is also referred to as the tire's section width. next,The 45 indicates that this tire size's sidewall height (from rim to tread) is 45% of its section width. The measurement is the tire's section height, and also referred to as the tire's series, profile or aspect ratio. The higher the number, the taller the sidewall; the lower the number, the lower the sidewall. We know that this tire size's section width is 205 and that its section height is 45% of 205mm. last,The 18 indicates the tire and wheel diameter designed to be matched together.Tires that have a rim diameter expressed in inches (P205/45R18, as well as 8, 10, 12, 13, 14, 15, 17, 18, 19, 20, 22, 23, 24, 26 and 28) are called "inch rim" sizes, are the most common type of tire size and are used on most cars, minivans, vans, sport utility vehicles and light duty light trucks.got it off of tire rack heheheh

alright! thanx guys. i was trying to buy a tire and rim package on like wheeels.com or wherever......and i had to pick my tires, and i got really confused. thank you!!