The rollout continues, with 19 more sizes now available for the new BF Goodrich KO3 all-terrain tire. This brings the total available options to 62, with lots more to come.
If you’ve been holding out hoping, here’s what’s new from this May 2025 (Phase 5) release batch:
- 35×11.50R20/E 124R
- 35×12.50R18/F 128R
- 37×12.50R17/F 128R
- 37×12.50R18/F 128R
- 37×12.50R20/F 128R
- 39×13.50R17/D 121R
- 40×13.50R18/F 128R
- LT215/70R16/C 100/97S
- LT215/75R15/C 100/97S
- LT225/75R16/E 115/112S
- LT235/75R15/D 110/107S
- LT235/85R16/E 120/116S
- LT255/65R17/D 114/110S
- LT255/70R17/D 116/113S
- LT265/70R16/D 117/114S
- LT275/55R20/D 115/112S
- LT275/60R20/D 119/116S
- LT275/70R16/D 119/116S
- LT285/55R20/D 117/114S

This adds to prior releases here, here, and here, along with the original launch, which includes our full technical coverage of the new design compared to the KO2. You might also like our All-Terrain Buyer’s Guide to see how these compare to the competition.
Check availability at Simple Tire and Tire Rack.

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