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Black sidewall trailer tire with ribbed highway tread pattern, size 235/85R16

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

  • Seasonal useAll-Season
  • Intended vehicleSpecial Trailer Service
  • Tire load index125/121
  • Tire speed ratingL
  • Package height8
  • Package length29
  • 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.

How it compares

Measured against everything we stock in ATV, Car & SUV Tires, at today’s prices. Recalculated every night.

Price $89.99
Typical for this category: the median of 621 items is $87.99.

Specifications

Product
Brand nameTrailer Master
Display
Screen ratio85
Size & build
Package height8
Package length29
Package width29
Overall tire diameter31.7
Rim diameter16
Sidewall styleBSW: Black Side Wall
Size235/85R16
Tire size code235/85R16 125/121L E 10 Ply
Tire width235
Wheel diameter16 in (40.6 cm)
Tread depth9/32
Compatibility
Intended vehicleSpecial Trailer Service
Compatible vehiclesTrailer
More details
Seasonal useAll-Season
Tire load index125/121
Tire speed ratingL
Tire load rangeE (10 Ply)
Tire ply ratingE (10 Ply)
Run-flat capabilityNo
Tire categoryHighway

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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