RM185 144L

Designed for use on commercial truckers, trailers, vans, and other hauling vehicles. Commercial tires are often built for use in the drive, steer, axle, or all position in regional, line haul, urban, and pickup and delivery applications.

Vehicle

This product is not covered by a manufacturer’s treadlife warranty.

Mileage Warranty

The maximum carrying capacity for a tire determined by the manufacturer  
                (Single wheel applications / Dual wheel applications).

Load Index

Maximum speed capability to safely carry a load for an extended period of time.

Max Speed

The maximum load carrying strength at the specified inflation pressure, also known as ply rating.

Load Range

The side of the tire between the tread and rim, with cosmetic branding as well as information about the tire including manufacturer, model, size, etc.

Sidewall

Measured in 32nds of an inch, this metric shows how much tread life is left on a tire, with the tire's traction & stopping capabilities greatly diminished at 4/32nds and less. Tire manufacturers include "tire wear bars" at 2/32nds to indicate when your tire is worn out.

Tread Depth

The highest inflation pressure (measured in pounds of force per square inch, PSI) the tire is designed to contain, and should only be used when called for by the vehicle placard.

Inflation Pressure

An identifier of a particular tire line and size combination assigned by the tire manufacturer.

Part Number

Tread design (or tread pattern) can affect handling, traction & noise for different driving styles & road conditions.

Tread Design

Tire Weight

The measurement of width from a tires inner sidewall to the outer sidewall.

Section Width

The range of widths the rim of the vehicle can be for this tire to be safely mounted on.

Rim Range

The diameter of a tire that is inflated without any load applied.

Overall Diameter

Designed for short usage use in city and urban environments.

Commercial Application

Designed for the front axle but can perform on all axles.

Commercial Position

RM230HH 146K

RM275 144L

Designed for drive/torque axles, the lug type or siped tread designs help maximize traction on various surfaces.

RM254 144L

RM230 HH 148K

RM852 EM 146L

RM257 133N

A three-peak mountain snowflake (3PMSF) symbol branded on a tire's sidewall indicates the tire meets required performance criteria in snow testing to be considered severe snow service-rated.

Three-Peak Mountain Snowflake (3PMS)

RM258 WD 146L

RM170 136M

The maximum carrying capacity for a tire determined by the manufacturer.

RM234(EM) 144L

RM272 140L

Yes, Roadmaster tires are covered against defects in workmanship and manufacturing down to the last 2/32" of tread depth. Additionally, Cooper offers a casing allowance on retreads for their Roadmaster tires.

Roadmaster tires are manufactured in China. 

Roadmaster commercial tires

48 reviews on Roadmaster tires

4.3

70%

Review breakdown

Scorecard

Dry

Wet

Winter

Comfort

Noise

Treadwear

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