Overview
The BF Goodrich Mud-Terrain T/A KM3 in size 235/70R16 (part number BFG23390) is a mud-terrain tire for 16-inch rims from BF Goodrich Tires. BF Goodrich positions the KM3 for drivers who need grip off pavement, and the company gives percentage gains in mud traction and rock traction.
The tire pairs massive tread blocks with a Krawl-TEK compound and a sidewall built to resist splitting and sharp objects. It offers 5 percent better mud traction, 8 percent better rock traction and 27 percent tougher sidewalls, and the features behind those figures are covered below. Drivers who mostly stay on pavement should weigh the tread against how they drive.
Key features
- 5 percent better mud traction.
- Terrain-Attack tread design with massive tread blocks that grip from any angle of approach
- Mud-Phobic Bars that release compacted mud to keep traction going
- Krawl-TEK compound that enhances grip on rock and slick surfaces, with 8 percent better rock traction claimed
- Linear Flex Zone that lets the tire flex and envelop objects when aired down
- CoreGard Max Technology with a thick sidewall shield and specialized compound against sharp objects
- Traction-Armor Sidewall Sculpture that helps prevent sidewall splitting, with sidewalls rated 27 percent tougher
Aired-down driving and inflation
Running lower pressure widens the contact patch, which helps the tread wrap around mud, rock and loose soil. The same flex can add heat and make the sidewall more prone to pinching on hard edges if pressure drops too far. Re-inflate before the drive back to pavement, and carry a gauge and a small compressor so you can reset pressure after the trail. Check the bead seating and wheel rim for bent edges after aired-down runs, since bead problems are a common cause of slow leaks. Inspect the sidewall and lugs for cuts and tears after mud runs, and clear packed mud from the wheel well so it does not rub the tire during turns. Lower pressures suit off-road sessions, while higher pressures suit highway driving.
Specifications
| Brand | BF Goodrich Tires |
|---|---|
| Part number | BFG23390 |
| Style | Mud-Terrain T/A KM3 |
| Tire size | 235/70R16 |
| Aspect ratio | 70 |
| Section width | 235 |
| Tire width | 9 |
| Tread type | Mud Terrain |
| Tire height | Under 30 |
| Rim diameter | 16 inches |
| Mud traction (BF Goodrich claim) | 5 percent better |
| Rock traction (BF Goodrich claim) | 8 percent better |
| Sidewall toughness (BF Goodrich claim) | 27 percent tougher |
Vehicle fitment
Fitment is Universal Fit, so the KM3 is not tied to one make, model or year. Match it by size: 235/70R16 on a 16-inch rim diameter, with a 70 aspect ratio.
Confirm fit for your vehicle’s year, model and trim before ordering, and check the tire size against your vehicle’s specifications.
Installation notes
The Linear Flex Zone supports aired-down driving. Set inflation from the tire placard on your vehicle or the markings on the sidewall.
What’s included
This item covers one BF Goodrich 235/70R16 tire. Wheels, valve stems and mounting hardware are not included, so plan for them separately.
