Terra Trac HPT

About the Hercules Terra Trac HPT

All-Season Highway-Terrain Passenger Light Truck/CUV and SUV tire.

Features

* Optimized tread design* Semi-open shoulder design* Heavy density siping and groove combination* Maximized footprint* 50,000 mile/80,000 km Mileage Warranty (T-rated)* 45,000 mile/75,000 km Mileage Warranty (H-rated)* 45-Day Trust Our Ride* 72-Month Limited Protection Policy* Road Hazard Protection

Benefits

* Reduces noise level and rolling resistance for a more enjoyable ride* Improves overall traction performance for a greater grip* Provides more traction in wet and winter conditions, while reduced stone retention extends treadlife* Reduces uneven wear for a smooth and steady ride

Understanding the 255/55R18 XL size

In the size code 255/55R18, 255 is the section width in millimetres (about 10"). 55 is the aspect ratio — the sidewall height is 55% of the width, or roughly 140.3 mm. R18 means radial construction on a 18-inch wheel, giving an approximate overall diameter of 29".

The load index 109 means each tire supports up to 2,271 lbs — about 9,084 lbs across a full set of four. The speed symbol H certifies the tire to 130 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 500 A B. The treadwear grade of 500 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 B reflects heat resistance at sustained speed (A is highest).

Price and value

At $135.00 per tire, a full set of four costs $540.00. That is about 29% below the average price of the 83 tires we stock in this size. Backed by a 50,000-mile treadwear warranty, that works out to roughly $10.80 per 1,000 miles across the set.