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Black trailer tire with raised white lettering on sidewall, 15 inch rim size

Trailer Master

Trailer Master ST PRO 225/75R15 117/112N E 10 Ply RWL

SKU CH-H30E-GTRA6

Highway all-season trailer tire, 225/75R15, load range E, 10-ply, speed rated 87 mph, raised white letters

  • Features225/75r15 117/112n-tires speed rated up to 87 mph highway al
  • SeasonAll-Season
  • VehicleSpecial Trailer Service
  • Load Index117/112
  • Speed RatingN
  • Shipping Height8.000
  • All-season traction for year-round towing confidence
  • Reinforced 10-ply construction handles heavy trailer loads
  • Highway rib tread improves steering response and stability
  • Speed rated up to 87 mph for highway use
  • Raised white letter sidewall adds classic trailer style

Trailer Tire 225/75R15 Load Range E

The Trailer Master ST PRO is a new all-season highway tire built specifically for special trailer service. Its reinforced radial construction maintains shape under heavy loads to increase carrying capacity and reduce sway while towing. The raised white letter sidewall adds a traditional look for trailer wheels. This tire is not intended for light trucks or passenger vehicles.

Dual Load Index 117/112 Speed Rating N

The single specification that decides fitment is the load index and speed rating combination of 117/112N. This rating supports a maximum load per tire at the higher single-wheel index and a lower dual-wheel index, with a top speed of 87 mph. Verify your trailer's gross axle weight rating and the manufacturer's recommended load index before purchasing.

Direct Bolt-On Fit for 15-Inch Rims

Installation is a standard tyre-to-rim mount on a 15-inch wheel; no special tools are required beyond normal tyre-changing equipment. The most common issue is attempting to use these ST-designated tires on light trucks, which voids the load rating and can cause premature failure. Ensure the rim width matches the 225 mm section width for proper bead seating.

Highlights

  • All-season traction for year-round towing confidence
  • Reinforced 10-ply construction handles heavy trailer loads
  • Highway rib tread improves steering response and stability
  • Speed rated up to 87 mph for highway use
  • Raised white letter sidewall adds classic trailer style

Specifications

BrandTrailer Master
Features225/75r15 117/112n-tires speed rated up to 87 mph highway all season weather m+s 225-75r15 225/75-15 225/75r15 225/75/15 225-75-15 225 75 15 2257515 10-ply rating 10-pr load range e lre trailer car family wheels custom wheels auto automobile care tires car repair car engine 15-inch 15-in 15" trailer master st pro
SeasonAll-Season
VehicleSpecial Trailer Service
Load Index117/112
Speed RatingN
Shipping Height8.000
Shipping Length27.000
Shipping Width27.000
Load RangeE (10 Ply)
Overall Diameter28.3
Ply RatingE (10 Ply)
Rim Size15
Sidewall ColorRWL: Raised White Letters
Size225/75R15
Run-FlatNo
Tire TypeHighway
Vehicle TypeTrailer
Size Description (Sidewall Description)225/75R15 117/112N E 10 Ply
Section Width225
Aspect Ratio75
Tire & Wheel Diameter15"
Tread Depth9/32

Questions about this item

What does the 117/112 load index mean for actual trailer weight?

The dual rating shows the maximum load each tyre can carry: 117 for single-wheel fitment and 112 when two tyres share an axle, matching the tyre's Load Range E construction.

How does the N speed rating limit highway use?

The N rating certifies the tyre for speeds up to 87 mph, so it is suited to normal highway towing but not sustained higher speeds.

What rim width and diameter does the 225/75R15 size require?

This tyre fits a 15 inch diameter rim; the 225 mm section width and 75 aspect ratio determine the approved rim width range for safe mounting.

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