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Trailer Master

Trailer Master ST PRO 235/85R16 125/121L E (10 Ply) Highway All Season Trailer Tire

SKU CH-086B-5X5NP

Highway all-season trailer tire sized 235/85R16 with load range E (10 ply), 125/121 load index, L speed rating up to 75 mph, and 31.7 inch overall diameter

  • Features235/85r16 125/121l-tires speed rated up to 75 mph highway al
  • SeasonAll-Season
  • VehicleSpecial Trailer Service
  • Load Index125/121
  • Speed RatingL
  • Shipping Height8.000
  • All-season traction for year-round towing confidence
  • 10-ply Load Range E supports heavy trailer loads
  • Speed rated up to 75 mph for highway use
  • Reinforced radial structure resists sway under load
  • 7 in overall diameter fits 16 in rims

Highway trailer tyre, 235/85R16 load range E

This new Trailer Master ST PRO tyre is built for special trailer service on highway terrain. Its reinforced radial structure maintains shape under heavy loads, increasing load capacity and towing stability. The all-season compound and ribbed tread design deliver dry, wet and winter traction while resisting hydroplaning.

Speed rating L limits highway use to 75 mph

The tyre carries a speed rating of L, which restricts maximum sustained speed to 75 mph. It is not approved for light-truck fitment, so builders needing a tyre for driven axles must choose a different product. Load index 125/121 and 10-ply rating E define the weight envelope for single and dual fitments.

Fits 16-inch rims; rim not included

Installation requires a 16-inch rim with the correct load rating; the product ships as tyre only. Common issues include mounting on undersized or damaged wheels and exceeding the 75 mph limit, which can cause premature wear or failure. Proper inflation to the rated pressure is essential for the reinforced structure to perform as designed.

Highlights

  • All-season traction for year-round towing confidence
  • 10-ply Load Range E supports heavy trailer loads
  • Speed rated up to 75 mph for highway use
  • Reinforced radial structure resists sway under load
  • 7 in overall diameter fits 16 in rims

Specifications

BrandTrailer Master
Features235/85r16 125/121l-tires speed rated up to 75 mph highway all season weather m+s 235-85r16 235/85-16 235/85r16 235/85/16 235-85-16 235 85 16 2358516 10-ply rating 10-pr load range e lre trailer car family wheels custom wheels auto automobile care tires car repair car engine 16-inch 16-in 16" trailer master st pro
SeasonAll-Season
VehicleSpecial Trailer Service
Load Index125/121
Speed RatingL
Shipping Height8.000
Shipping Length29.000
Shipping Width29.000
Load RangeE (10 Ply)
Overall Diameter31.7
Ply RatingE (10 Ply)
Rim Size16
Sidewall ColorBSW: Black Side Wall
Size235/85R16
Run-FlatNo
Tire TypeHighway
Vehicle TypeTrailer
Size Description (Sidewall Description)235/85R16 125/121L E 10 Ply
Section Width235
Aspect Ratio85
Tire & Wheel Diameter16"
Tread Depth9/32

Questions about this item

What does the 125/121 load index mean for my trailer?

The dual index shows single-wheel capacity at 125 and dual-wheel capacity at 121, matching Load Range E for heavy trailer loads.

Is the 75 mph speed rating suitable for highway towing?

Speed rating L allows up to 75 mph, fitting typical highway speeds for trailer service.

Will the 235/85R16 size fit my 16-inch trailer rims?

Yes, the tyre is built for a 16-inch rim diameter and 235 mm section width.

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