Tyres & Wheels Standard & Optional Wheel/Tyre Sizes - Advantages/Disadvantages

Discussion in '7th Generation (2003-2008) [Acura TSX]' started by hondream, Tuesday 12th Aug, 2014.

  1. hondream Senior Member ★ ★ ☆ ☆ ☆

    Simon Walsall
    For the Accord 2.4 petrol saloon (7th Generation) facelift models
    This may seem obvious, but couldn't find anything in the searches.

    What are the standard wheels/tyres fitted to these cars?

    Have seen some advertised with 17" & 18", penta alloys, upgrades, etc.

    What are the advantages/disadvantages of any upgrades?

    If the car comes standard as 16" tyres, and someone fits 18" tyres wouldn't that dramatically change the setup and torque ratings, fuel economy, forces, stresses etc.

  2. Nels Moderator Staff Team

    I believe you can put the larger Honda alloys on, with the appropriate tyres. The total diameter of the alloy and tyre should be the same as the original. If you put larger or smaller tyres on, then it will have a consequence. I am sue some of the others can fill in the gaps.
    A smaller alloy may not have sufficient clearance around the calipes. If the calipers have been upgraded, even the standard alloy may not fit.
    17" Pentas, Epsilons and Multispoke are fine on PFL 7th Generation Accords as they were offered as options by Honda at release, 17" Dynamics and 18" Altimos on the FL.
    There are several discussions about alloy sizes and clearance on the site, but not necessarily in the title.
  3. Phil1978 Top Contributor ★ ★ ★ ★ ☆

    Phil Salisbury
    People usually fit after-market wheels purely for looks, or if they're upgrading brakes and the old wheels won't fit over them.

    You can put the new wheel/tyre size in here, it'll tell you how close the two sets of wheels are
    SpeedyGee and Nels like this.
  4. DeviateDefiant Co-Founder Staff Team

    United Kingdom Leo Northants
    To be best of my knowledge there were 3 standard/optional sizes that came on the 7th Generation:
    • 205/55 tyres on 16" rims, 6.5" wide with a ET55 offset.
    • 225/45 tyres on 17" rims, 7" wide with a ET55 offset.
    • 225/40 tyres on 18" rims, 7.5" wide with a ET45 offset.
    Building on what @Nels said above - the total diameter of the wheels with tyres should be very close on the specifications above, and that's important as the Speedo and VSA calculations are performed factoring in this figure (VSS). Going away from it, the car will still drive, but your Speedo will be slightly out and VSA might perform differently, though it's something I've never heard reported.

    You can run 19" rims, you can run up to 8.5" wide rims on a close offset without needing to pull/roll the fenders because of rubbing. If you're running at stock height, that's not going to be something you really struggle with. But people have been known to run as large as 22" rims, 9" wide with extremely stretched tyres - that's at the point where it doesn't even look good, but it can be done.

    To check any wheel and tyre specs against stock, and to see any potential speedo differences etc. use a calculator like Will They Fit.

    Getting into advantages and disadvantages, the more rubber and smaller the wheel size, the comfier the ride. Tyres absorb a lot of the impact from the road and help stop it travelling up through the chassis and thus you noticing it in the cabin. As rubber is also malleable and will flex, it is easier to move off the line the thicker the tyre wall is, therefore fuel economy is will also be slightly better.

    There isn't much in terms of advantages of larger diameter rims, they look better, and some people might actually prefer the stiffer ride.

    Looking solely at aftermarket - wider rims/tyres however do have a useful function, there's more contact area to the ground so it helps you put power to the floor. The more surface area, the better traction. But unless you're modifying the car, it's not something which is going to be a great difference. Looking at winter and icy conditions, you're also a lot more likely to go sliding.

    17" at 7-8" wide is a good balance for most people. The 18" difference is 1-2MPG less, slightly stiffer ride, but look better. The trade-off is completely up to you,