Altimax RT45

About the General Altimax RT45

All-Season Passenger Car/CUV Touring tire. Available in Outlined White Letter (OWL) and Black Sidewall (BSW).

Features

* Replacement tire monitor* Visual alignment indicators (VAI)* 75,000 Mile Limited Treadwear Warranty (T/H Rated)* 65,000 Mile Limited Treadwear Warranty (V Rated)* 45 Day Trial* 12 Month Road Hazard Coverage

Benefits

* Letters in the tread wear off when the tire wears to 2/32 of tread depth, indicating tire change is needed* Indicators in both sides of the tread wear off either evenly or unevenly, alerting driver of uneven wheel alignment* Reliable braking on wet roads* Responsive handling on wet and dry roads* Optimal traction in light snow* Low road noise* Long-lasting treadwear

Understanding the 235/55R18 XL size

In the size code 235/55R18, 235 is the section width in millimetres (about 9.3"). 55 is the aspect ratio — the sidewall height is 55% of the width, or roughly 129.3 mm. R18 means radial construction on a 18-inch wheel, giving an approximate overall diameter of 28.2".

The load index 104 means each tire supports up to 1,984 lbs — about 7,936 lbs across a full set of four. The speed symbol V certifies the tire to 149 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 700 A A. The treadwear grade of 700 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 A 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 $143.24 per tire, a full set of four costs $572.96. That is about 10% below the average price of the 147 tires we stock in this size. Backed by a 65,000-mile treadwear warranty, that works out to roughly $8.81 per 1,000 miles across the set.