Mastertrack UN203 ST205/75R15 111/106N Load Range E (10-Ply) Tire

Product Details : MASTERTRACK UN203 205/75R15 Tires

Mastertrack UN203 - Heavy-Duty 10-Ply Special Trailer (ST)

Size: ST205/75R15 | Load Range: E (10-Ply Rated) | Type: Special Trailer (ST)

The Mastertrack UN203 is a heavy-duty Special Trailer tire engineered for high-demand applications. By offering Load Range E capacity in a standard 15-inch fitment, it provides a critical safety margin for boat trailers, utility haulers, and cargo trailers that consistently operate near maximum weight limits.

Key Features & Benefits

• 10-Ply Casing Rigidity: Features a robust 10-ply construction that significantly reduces sidewall flex compared to standard D-range tires, minimizing heat buildup¡ªthe leading cause of highway blowouts.
• Enhanced Sway Control: The specialized ribbed tread pattern is designed to maintain stable straight-line tracking, reducing trailer sway and improving towing composure at highway speeds.
• Increased Payload Confidence: Boasting a 111/106 load index, this tire supports up to 2,403 lbs per tire in single-axle configurations, providing a meaningful structural advantage for heavy equipment haulers.
• Specialized Trailer Compound: Formulated to resist the unique stresses of trailer service, including ozone cracking and weathering during periods of storage.
• Direct Safety Upgrade: The logical choice for owners moving up from 8-ply (Range D) tires who require the added structural margin of a 10-ply (Range E) rated casing.

Ideal For:

• Large Boat Trailers & Lake Launches
• Tandem-Axle Utility Trailers
• Heavy Equipment & Cargo Haulers
• Travel Trailers & Campers requiring Load Range E specs

Safety Note: Special Trailer (ST) tires are not for use on passenger cars or trucks. To ensure maximum load capacity and tread life, always maintain tires at the maximum cold inflation pressure indicated on the sidewall.