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Skip to main content SimpleCrew exclusive savings
Free tire replacement coverage
Rims not included with purchase of tires
Starting at $170.97
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Best price guarantee We'll match it
SimpleScore™ What's this? Our proprietary rating system for the modern tire buyer.
Professional tire installation near you.
Our promises Free shipping To any address, installer partner or FedEx!
Learn more Best price guarantee See the same tire at a lower price? We'll match it.
Learn more SimpleCrew exclusive savings Get free access to discounts on select tires, personalized coupons, and more.
Learn more 0% financing options Pay at your own pace, starting at 0% APR with Affirm.
Learn more Free tire replacement coverage Save your wallet from road hazards like nails.
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Shop with confidence 98% of customers approve Top 500 fastest growing company in US 20,000+ certified installers 7,000+ local distributors 6M+ customers served
3 SimpleTire reviews 5 4 3 2 1
All reviews (3) Most helpful Most recent High to low Low to high
I put this on a 3 car trailer (26K lbs) They are holding very well and wear excellent. I got the load range H. I cannot seem to find them anymore. They hold 110psi, so they will haul some heavy weight. Good so far. Buying more
Would you buy again? Yes Miles driven on tires 30k+ View more Helpful 2 Would you buy again? Yes Miles driven on tires 5k - 9k View more Helpful I've only put approximately 15,000 miles on them so far (On our 10k lb flatbed trailer) but they are wearing like iron. Very happy so far.
Would you buy again? Yes Miles driven on tires 20k - 29k Driving habit Confident View more Helpful 1 See all customer reviews
Get technical: The Trailer King Ultra STR is purpose-built for high-capacity trailers in regional or long-haul service.
Features & Benefits
All-steel belted construction boosts strength and durability Cross rib sipes and four circumferential ribs improve wet and dry traction by forcing water out of the tire and by creating additional biting edges Stone ejectors force rocks and debris out of the tire to protect the casing from damage 12/32" tread depth 4000 lb weight capacity per tire - requires special high-load-capacity rims Trailer tire -- not suitable for vehicle use
Technical specs Available sizes
4079 lbs/3638 lbs (129/125)
Any info you'are still looking for?
Label Value Width 235 Ratio 80R Inflation Pressure 110 Tread Depth 12.00 Width Range NA Sidewall Tubeless Tread Width NA Sidewall Tubeless
Label Value Width 235 Ratio 85R Inflation Pressure 110 Tread Depth 12.00 Width Range NA Sidewall Tubeless Tread Width NA Sidewall Tubeless
Label Value Width ST225 Ratio 90R Inflation Pressure 0 Tread Depth 0.00 Width Range NA Sidewall Tubeless Tread Width NA Sidewall Tubeless
How to find my size Ultra STR ∙ 3 sizes available
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