Invo

About the Nitto Invo

Ultra High Performance Passenger Car tire Specifically Developed for Staggered Sized Applications Commonly Found on Luxury Sport Performance Vehicles.

Features

* Large reinforced outer shoulder tread blocks* Continuous center rib provides continuous contact with road* Asymmetrical tread pattern and advanced engineering* Large twin circumferential grooves to channel water away for the tire* 3D multiwave sipes

Benefits

* Increase the amount of contact with the road, assisting in dry performance and cornering* Increases the tires rigitity and stability, keeping contact with the road during hard braking and acceleration* Allows for tire rotation and produces an exceptionally quiet tire* Maintains better traction in wet* Solidifies the block to help reduce uneven wearing

Understanding the 255/40R18 XL size

In the size code 255/40R18, 255 is the section width in millimetres (about 10"). 40 is the aspect ratio — the sidewall height is 40% of the width, or roughly 102 mm. R18 means radial construction on a 18-inch wheel, giving an approximate overall diameter of 26".

The load index 99 means each tire supports up to 1,709 lbs — about 6,836 lbs across a full set of four. The speed symbol Y certifies the tire to 186 mph under its rated load. Always match or exceed the load index and speed rating listed on your vehicle's door-jamb placard.

Tread life and grip ratings

This tire carries a UTQG rating of 220 AA A. The treadwear grade of 220 is a relative durability score — a grade of 200 is expected to last roughly twice as long as a grade of 100 under the same controlled test. Traction grade AA measures straight-line wet stopping grip (AA is highest, then A, B and C). Temperature grade A reflects heat resistance at sustained speed (A is highest).

Price and value

At $210.75 per tire, a full set of four costs $843.00. That is about 8% above the average of the 71 tires we stock in this size, reflecting its position in the range.