Roadmaster® RM300 HH™

  • Mixed Services
  • Drive Position
  • M+S Rated

The RM300 HH™ is an on/off-road drive tire designed to handle heavy hauling in mixed service applications.

Tire Features

Stone Protectors And Stone Protector Ledges

Stone protector ledges on all lugs and stone protectors on the bottom of the tread grooves help protect the casing from stone penetration.

Curb Bar With Sidewall Depth Indicator

The curb bar with sidewall depth indicator helps protect the sidewall from scuffing damage and assists in indicating when a tire should be rotated to preserve the casing for retreading.

Cut And Chip Tread Compound

The tread compound helps resist cuts and chips in mixed service applications

Tread Depth

Rugged 29.5/32' tread depth helps provide traction and durability in mixed service applications

High Tensile Strength Four-Belt Package

The high tensile strength four-belt package helps provide casing durability and retreadability.

Warranties & Guarantees

2023 Commercial Replacement Tire Guide, Limited Warranty & Registration Booklet For Cooper® & Roadmaster® Tires


Tire Specifications
Tire Specifications

Full Specs

Load Range
Tire Size
  • Tire Size 11R24.5
  • Static Loaded Radius 0 in/ 0 mm
  • Load Range H
  • Tread Depth 29 / 23 mm
  • Revs 470 mile/ 292 km
  • Max Speed 68 mph/ 42 kmh
  • Tire Weight 134.3 lbs/ 60.9 kgs
  • Approved Rim Width 7.5-8.25 in
  • Single Max Load 7160 lbs/ 3247.7 kgs
  • Overall Diameter 0 in/ 0 mm
  • Single Inflation Pressure 120 psi/ 827 kpa
  • Overall Width 11.2 in/ 284 mm
  • Dual Max Load 6610 lbs/ 2998.2 kgs
  • Overall Width Loaded 11.2 in/ 284 mm
  • Dual Inflation Pressure 120 psi/ 827 kpa