#Frs Stock Tire Size Series Aspect Ratio#

It’s likely the PSS would be a 285/35-18 for this wheel which has a 10.2” tread width. For example: Let’s say your car has an 18×10” wheel and a Michelin Pilot Super Sport (PSS) tire on it from the factory. As you see this is the biggest tire you can put on a 18x10.5' rim. This table helps you to find the best tire size for your 18x10.5 rim because it collects the real users experience from the car forums and wheel manufacturers (the data is taken from their galleries). Recommended tire sizes for a 18x10.5 rim.

Remember the “Top Tip” earlier in the article?If you compete in time trials or wheel to wheel racing, but your class has a tire width limit of say, a 275. You can go either way here, but depending on your needs, I would probably keep the factory 285 width UNLESS a better performing tire can be had in the 275 width (and tread width) range, then that would be a win-win over an inferior 285. Depending on the situation, downsizing the tire could have slightly less, the same or slightly more grip.

The contact patch becomes wider and shorter (front to rear). DOES change the contact patch SHAPE when the vehicle weight and tire pressure is the SAME. Does NOT change the contact patch SIZE when the vehicle weight and tire pressure is the SAME. Optimizing the offsets and rim widths for the given amount of room is the goal here.There are a few things to understand in regards to tire width. Given a rule constraint like a 275, there is not much to do other than look at the true tread widths of the various tires and (more importantly) find out which compound is truly better.This can get very complex when increasing the width and diameter of the tire beyond what the factory has intended but there are 3 main things to consider: Width, Diameter, and Volume/Total Tread Surface Area (TTSA).The width of a tire usually does not influence the ABS or Traction Control, and the constraints here tend to be limitations with steering lock and the tire rubbing the inner chassis at full lock.

You can typically also lower tire pressures slightly to increase the contact patch SIZE due to a larger diameter tire. I wouldn’t recommend going above or below this diameter until you know more about how it is going to affect the rest of the systems on your car.Increasing the Diameter also changes the contact patch SHAPE, making it longer (front to rear) and narrower (width) for a given vehicle weight and tire pressure. The easiest thing to do is to keep the diameter the same as the factory. Usually not a problem on heavy cars.This has a huge influence on the ABS, Traction Control, speedometer, effective gear ratio, rotating mass, and much more. Takes LONGER to WARM UPto its ideal operating range. INCREASES the tires Total Tread Surface Area (TTSA), and makes it less prone to overheating and has a LONGER LIFE.

Frs Stock Tire Size Series Aspect Ratio

Interestingly, the 300/650-18 and 320/710-18 racing slicks commonly used on GTE racecars have very similar outer diameters.While slightly smaller brakes and either 18″ or 19″ wheels probably would have sufficed, Ferrari felt this direction of smaller sidewalls and larger diameter wheels were worth it and it’s hard to argue against it especially when amazing supercars from the 918/P1/LaF trio to the Aventador SV, McLaren 675LT and Ford GT have all gone in this direction. As far as sizing goes, this Ferrari 458 Speciale is arguably one of the best performance cars ever built and is equipped with massive 245/35-20 and 305/30-20 Michelin Pilot Sport Cup 2 tires that have 26.8″ and 27.2″ diameters respectively. Now 18″ wheels are the most popular size for performance tires on up to racing tires and manufacturers are increasing the overall wheel diameter of vehicles across the board to fit larger brakes for increasingly larger and heavier cars.Keep in mind that larger diameters also increases the tire’s Total Tread Surface Area (TTSA) which can be advantageous. You could say the same if you’re older than I am for 15″, 16″ or 17″ wheels. There’s a reason drag racing tires have small diameter wheels, large sidewalls and very large outer diameter tires.At one time, 18-inch wheels and anything smaller than a 40-series aspect ratio were considered ‘blingy’ and not for the performance-oriented so everyone ran 17″ wheels or smaller.

Likewise if you have a heavier car, increasing the volume/TTSA is key to making tire last longer in a session.Tire compound and tread design also plays a big role here and while swapping to a more aggressive tire is the easiest way to make a car faster and last longer before overheating the tires increasing the TTSA will make the tires last even longer, and even allow for a tire choice that is less of a compromise for daily driving. You don’t want too much volume/TTSA (like the Elise example) if you are autocrossing, because you will never heat the tire up to its ideal operating range in time to make grip.

2021.12

Wrench Watch Dogs Legion

Frs Stock Tire Size