Greenball TR14215D Tow-Master STR ST215/75R14 D 8-Ply Trailer Tire

The Greenball Tow-Master STR (TR14215D) is a Special Trailer (ST) rated radial tire built for dependable, long-haul towing performance. Sized ST215/75R14 with a Load Range D / 8-ply rating, this tire is engineered exclusively for trailer applications — including boat trailers, horse trailers, cargo trailers, travel trailers, toy haulers, and fifth wheel trailers.

Key Features:

• Dual steel belts with reinforced belt-edge package provide added strength and stability, reducing trailer sway during towing
• Speed Rating M — rated for safe highway towing at speeds up to 81 mph
• Low rolling resistance construction helps reduce fuel consumption on long trips
• Ribbed tread design maintains consistent road contact across dry, wet, and winter conditions
• Wide circumferential grooves channel water and slush away from the contact patch to resist hydroplaning
• All-season rubber compound maintains flexibility across a range of temperatures for year-round reliability
• 8-ply / Load Range D construction with a load index of 108/103 for confident heavy-load carrying
• Black sidewall (BSW) finish
• DOT approved for use on public roads

Tire Specifications:

• Size: ST215/75R14
• Load Range: D (8-Ply)
• Load Index: 108/103
• Speed Rating: M (up to 81 mph)
• Overall Diameter: 26.7 in
• Section Width: 215 mm
• Tread Depth: 10/32 in
• Sidewall: Black Sidewall (BSW)
• Max PSI: 65 PSI
• UTQG: N/A (trailer tires exempt)

The Tow-Master STR is a trusted name in American trailer tires, combining durable steel-belted radial construction with an all-season tread compound to deliver a stable, smooth towing experience mile after mile. For trailer use only — not intended for mounting on light trucks or passenger vehicles.