# Tire size question **URL:** \ **Category:** PittSpeed Automotive\ **Created:** [August 15, 2006, 4:19pm UTC](https://forums.speedlife.net/t/tire-size-question/184281 "2006-08-15T16:19:59Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![ShalerPunk](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/shalerpunk/32/5976_2.png) [@ShalerPunk](https://forums.speedlife.net/u/ShalerPunk)\ **Post date:** [August 15, 2006, 4:19pm UTC](https://forums.speedlife.net/t/tire-size-question/184281/1 "2006-08-15T16:19:59Z")
My car came with 195/55/15. My new wheels came with 225/50/16. Not right at all. Using the tire size calculator, it says 205/45/16 and 215/45/16 will both be almost perfect matches for my original overall diameter… I’d rather go with the 205s for clearance issues, but will that width fit a 7.5" wide wheel? ---
**Author:** ![Shaggy](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/shaggy/32/5945_2.png) [@Shaggy](https://forums.speedlife.net/u/Shaggy)\ **Post date:** [August 15, 2006, 4:28pm UTC](https://forums.speedlife.net/t/tire-size-question/184281/2 "2006-08-15T16:28:54Z")
they will, probably up to a 255 ---
**Author:** ![system](https://canada1.discourse-cdn.com/flex034/uploads/speedlife/original/2X/b/b7170c8eddc0b95ece6b88172b2f416a08489a45.png) [@system](https://forums.speedlife.net/u/system)\ **Post date:** [August 15, 2006, 9:37pm UTC](https://forums.speedlife.net/t/tire-size-question/184281/3 "2006-08-15T21:37:59Z")
205’s will be slightly wider and I would assume they would fit a 7.5" wide wheel. My 235/60/15’s are mounted on 6" wide wheels ---
**Author:** ![vwracer47](https://avatars.discourse-cdn.com/v4/letter/v/bc79bd/32.png) [@vwracer47](https://forums.speedlife.net/u/vwracer47)\ **Post date:** [August 16, 2006, 1:13am UTC](https://forums.speedlife.net/t/tire-size-question/184281/4 "2006-08-16T01:13:45Z")
my old wheels were 7.5" wide and i had 215s on them ---
**Author:** ![JackdUp](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jackdup/32/6015_2.png) [@JackdUp](https://forums.speedlife.net/u/JackdUp)\ **Post date:** [August 16, 2006, 6:01am UTC](https://forums.speedlife.net/t/tire-size-question/184281/5 "2006-08-16T06:01:11Z")
Tires are not constructed as exactingly as this, but a good rough guide might be: 205 mm is about 8.0 inches / about 0.25 inches of rubber per side of rim 215 mm is about 8.5 inches / about 0.5 inches of rubber per side of rim 225 mm is about 8.8 inches / about 0.65 inches of rubber per side of rim If your wheel is backspaced inboard toward the suspension or tight to subframe when turning the steering, any of these might work. ---
**Author:** ![S10Blazed\_Si](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/s10blazed_si/32/5983_2.png) [@S10Blazed\_Si](https://forums.speedlife.net/u/S10Blazed_Si)\ **Post date:** [August 16, 2006, 6:53am UTC](https://forums.speedlife.net/t/tire-size-question/184281/6 "2006-08-16T06:53:13Z")
[http://www.tirerack.com/tires/Spec.jsp?make=Dunlop&model=SP+Sport+9000&partnum=045ZR69000&vehicleSearch=false&fromCompare1=yes&place=0](http://www.tirerack.com/tires/Spec.jsp?make=Dunlop&model=SP+Sport+9000&partnum=045ZR69000&vehicleSearch=false&fromCompare1=yes&place=0) For a 205 the average range of rim width is 6.5 - 8 wide. You will be ok. ---
**Author:** ![95V8TBird](https://avatars.discourse-cdn.com/v4/letter/9/a8b319/32.png) [@95V8TBird](https://forums.speedlife.net/u/95V8TBird)\ **Post date:** [August 16, 2006, 7:03am UTC](https://forums.speedlife.net/t/tire-size-question/184281/7 "2006-08-16T07:03:18Z")
we put a 285 on an 8.5 wheel and it fit beautifully ---
**Author:** ![ShalerPunk](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/shalerpunk/32/5976_2.png) [@ShalerPunk](https://forums.speedlife.net/u/ShalerPunk)\ **Post date:** [August 17, 2006, 7:36am UTC](https://forums.speedlife.net/t/tire-size-question/184281/8 "2006-08-17T07:36:44Z")
I’m going to get 205/45/16 Yokohama Avid H4Ss… $69/tire from TireRack. Thanks for the answers.