speed rating R and S are?

R speed rating Speed rating R allows for speeds up to 106 mph (170 km/h) under optimal conditions. Like Q speed rated tires, R rated tires generally prioritize a particular function or unique performance over maximum speed capability. R speed tires are rare, but can be found on some heavy duty light truck (LT) tires, as well as studdable and studless winter tires. S speed rating An S speed rating indicates the tire has been approved for speeds up to 112 mph (180 km/h) under optimal conditions. Everyday passenger vehicle tires can be S speed rated, but S tires often prioritize specific performance or function. Many all-terrain LT tires are becoming available in an S rating as that’s the OE spec for many of these vehicles like the Ford Raptor. M & N speed ratings An M speed rating indicates the tire has been approved for speeds up to 87 mph (140 km/h) and an N is approved for speeds up to just 81 mph (130 km/h) under optimal conditions. You’ll find M and N ratings on tires for temporary use like spare tires

Does this come with its own rim or do I have to get one?

Hello, This is the tire only. Rims are sold separately.

Whats the ply rating?

This is an E rated 10 ply tire. Thanks!

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🛞 Conquer every road, every season — because your journey deserves the best.

HEAVY LOAD HAULER - Supports a robust load index of 3195, perfect for demanding work and adventure.
UNMATCHED DURABILITY - Engineered with shred-resistant silica compound for extreme toughness on rocky terrain.
ALL SEASON CONFIDENCE - Optimized tread pattern delivers reliable traction rain or shine, reducing stopping distance by 10 feet on wet roads.
PRECISION FIT CONTROL - Radial construction with 17-inch rim diameter and 275/70 sizing ensures a smooth, stable ride.
LONG LASTING PERFORMANCE - Backed by a 60,000-mile treadwear warranty to keep you rolling longer with less wear.

The Cooper Discoverer AT3 LT 275/70R17 is a rugged all-season, all-terrain tire designed for heavy loads and extreme durability. Featuring a shred-resistant silica compound and proprietary tread pattern, it offers superior cut and chip resistance while improving wet road stopping distances by at least 10 feet. With a 60,000-mile treadwear warranty and a load index rating of 3195, this tire is built to perform and last across diverse terrains and conditions.

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Manufacturer	Cooper
Brand	Cooper
Model	DISCOVERER AT3 LT
Item model number	170013001
Manufacturer Part Number	170013001
Section Width	275 Millimeters
Aspect Ratio	70
Construction	Radial
Rim Diameter	17 Inches
Load Index Rating	3195
Speed Rating	R
Tread Depth	16.5 32nds
Rim Width	8 Inches
Item Weight	23.6 Kilograms

Cooper Discoverer AT3 LT All-Season LT275/70R17 121/118R Tire

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