305's too wide?
Thread Starter
Burning Brakes
Joined: Feb 2005
Posts: 1,190
Likes: 0
From: Fayetteville AR
305's too wide?
OK, I have been searching this site for new tires over the last two weeks - I found TWO brands I like but I still cannot decide on the sizes. I DONT want the tires to stick out past the tops of the fenders.
This is what I am lookin at right now: CCW 505a 18x9.5(10?) F and 19x11 R with 275/35/18 and 305/30/19.
Or should I go with 265/35/18 and 285/35/19? And maybe with 19x10 rears??
It seems many members claim the 305's sticks out an inch or so (depending on tire brand) and other say they dont (some with exact tires and rims). So it is very confusing.
Please help. I dont want to order a tire too large (or even too small) and be unhappy (like the 2 thread I found tonight).
Thanks.
This is what I am lookin at right now: CCW 505a 18x9.5(10?) F and 19x11 R with 275/35/18 and 305/30/19.
Or should I go with 265/35/18 and 285/35/19? And maybe with 19x10 rears??
It seems many members claim the 305's sticks out an inch or so (depending on tire brand) and other say they dont (some with exact tires and rims). So it is very confusing.
Please help. I dont want to order a tire too large (or even too small) and be unhappy (like the 2 thread I found tonight).
Thanks.
Melting Slicks
Joined: Jan 2007
Posts: 3,021
Likes: 133
From: Conejo Valley CA
In the rears, I have CCW SP500 19X11.5 with 305 tires. In my opinion, they don't look too wide, they look great. They don't stick out too far at all for me, but on my Z, the brake ducting had to come out to accomodate the deeper wheel.
Here's an rear angled view if this helps,
Forgot to mention... my fronts are 18X10.
Here's an rear angled view if this helps,
Forgot to mention... my fronts are 18X10.
Last edited by Z06ster; Sep 30, 2008 at 12:56 AM.
Burning Brakes
Joined: Jan 2006
Posts: 975
Likes: 0
From: Norfolk Virginia
I had 305's on 18's for about a year. They looked/worked fine (no rubbing). Now I have 305's on 20's and like them just as much. No issues or other mods required. You'll be glad you got the wider rears (versus 285's/295's that is). Good luck!
Thread Starter
Burning Brakes
Joined: Feb 2005
Posts: 1,190
Likes: 0
From: Fayetteville AR
So does CCW put a little more back spacing to offset the wider tire? If so by how much? I would think I could not be much more than 1/2 due to clearance issues.
Z06ster - your car looks great! I would love to see some pics up close showing the tire vs. fender.
Z06ster - your car looks great! I would love to see some pics up close showing the tire vs. fender.
Premium Supporting Vendor
Joined: Oct 2004
Posts: 36,838
Likes: 438
From: Manassas Park VA
St. Jude Donor '07-'08,-'13-'14, '16-'17
Peace
Chip
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Pro
Joined: Mar 2008
Posts: 613
Likes: 1
From: Salt Lake City Utah
One thing to remember is that on stock rims you would be hard pressed to get the rubber to stick out past the fender. In most cases it is the rim that causes this. Your talking about a 10-20mm difference in width. So even if you are 20mm wider you figure it might extend out 10mm further on each side compared to your current tire.
The other thing to remember is that you won't always get the exact width you are putting on. Rim width has a factor in it too. You could have the same size tire on a 8" wide rim and a 12" wide rim and obviously the one on the 12" wide rim will be wider, even though the tire size is the same.
The other thing to remember is that you won't always get the exact width you are putting on. Rim width has a factor in it too. You could have the same size tire on a 8" wide rim and a 12" wide rim and obviously the one on the 12" wide rim will be wider, even though the tire size is the same.
Administrator
Joined: Mar 2001
Posts: 368,297
Likes: 24,776
From: In a parallel universe. Currently own 2014 Stingray Coupe.
C7 of the Year - Modified Finalist 2021
MO Events Coordinator
St. Jude Co-Organizer
St. Jude Donor '03 thru '25
NCM Sinkhole Donor
CI 5, 8 & 11 Veteran
Go for it. The 305's will look great.
Thread Starter
Burning Brakes
Joined: Feb 2005
Posts: 1,190
Likes: 0
From: Fayetteville AR
So if I go with the 18x9.5 front and 19x11 rear ccw 505a with 275/35/18 front and 305/30/19 rear they will be under the fenders (except for maybe 10mm in the rear) and they will look right (sidewalls look same height to rim)?
What tires are you all running? I am looking at the Nitto Invo due to price and since my car is a weekend only and fair weather only kind of ride.
What tires are you all running? I am looking at the Nitto Invo due to price and since my car is a weekend only and fair weather only kind of ride.
Premium Supporting Vendor
Joined: Oct 2004
Posts: 36,838
Likes: 438
From: Manassas Park VA
St. Jude Donor '07-'08,-'13-'14, '16-'17
So if I go with the 18x9.5 front and 19x11 rear ccw 505a with 275/35/18 front and 305/30/19 rear they will be under the fenders (except for maybe 10mm in the rear) and they will look right (sidewalls look same height to rim)?
What tires are you all running? I am looking at the Nitto Invo due to price and since my car is a weekend only and fair weather only kind of ride.
What tires are you all running? I am looking at the Nitto Invo due to price and since my car is a weekend only and fair weather only kind of ride.
A 265/35/18 will be closer on the side wall height to the 305/30/19
Peace
Chip
Thread Starter
Burning Brakes
Joined: Feb 2005
Posts: 1,190
Likes: 0
From: Fayetteville AR
So the perfect set up would be 265 F and 305 R?
Thanks.
Premium Supporting Vendor
Joined: Oct 2004
Posts: 36,838
Likes: 438
From: Manassas Park VA
St. Jude Donor '07-'08,-'13-'14, '16-'17
If you have bad roads, a 275 may be better (save you from a bent rim) but if your roads are decent, than the the 265 will match the side wall of the 305 better
Peace
Chip
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
18x305s in back are just fine, but you should really have about -1.0* of camber in back too.
I dont think I would run anything wider then 305 on the rear for street tires. Too much tramiling with anything larger, 315s, 325s, 335s or 345s
an 18x285 front and 18x305 rear is a very good combo for performance and handling.
GOOD LUCK
Last edited by AU N EGL; Sep 30, 2008 at 05:35 PM.
Burning Brakes
Joined: Jul 2006
Posts: 968
Likes: 12
From: Regina Sask
I have 265/35 & 305/30/19 Michelin PS2's on 18x9.5 59mm offset & 19x11 65mm offset wheels. As you can see, the front sidewall is slightly taller than the rear tire sidewall.
As stated, a wider wheel will increase the section width. An 11.5 wheel would be too wide for the rear tire to tuck in.
Russ Kemp
As stated, a wider wheel will increase the section width. An 11.5 wheel would be too wide for the rear tire to tuck in.
Russ Kemp