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BFGoodrich Mud-Terrian Radial - The Next Generation

Posted in How To on November 1, 2007 Comment (0)
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Photographers: Jordan MayPhil Howell

The BFGoodrich Mud-Terrain tire has been around for many, many years. Some of us on staff at 4WD&SU have been running these tried-and-true tires on our vehicles for well over 20 of those years. They are one of the granddaddies of the modern off-road tire. BFGoodrich M-Ts have served their purpose well, and in some sense we are sorry to see the old version go, but there's a new kid on the block. BFG has recently released the all-new Mud-Terrain T/AKM2 tire.

The KM2's tread design is very similar to the popular Krawler T/AKX. The Krawler has proven its worth in the competitive world of rockcrawling, but the tire is too aggressive and heavy for everyday driving. The KM2's tread design reminds us of a toned-down version of the Krawler KX, which gives the new KM2 a smoother and friendlier highway ride. We've even found the new tire's aggressive tread pattern to be slightly less noisy on the highway than the old tire.

The KM2 is built around BFG's proven TriGard carcass, which is made of very tough, three-ply polyester to give the KM2 sidewall cords a 33-percent increase in strength over the previous BFG Mud-Terrain. Each tire is constructed with three-ply polyester belts and two steel belts on the tread. The KM2 also features single-strand steel bead for strength and construction uniformity. According to BFG, this means you can wheel in harsher conditions with less of a risk of a sidewall puncture or tear.

The KM2's tread blocks now feature siping, which gives it additional surface traction in wet driving conditions. This feature also lends the beefy tread blocks more pliability and more traction on- and off-road, especially in rocky terrain.

The tread and sidewall compounds on the KM2 are where BFG reformulated and made some big changes. The sidewall's cut- and chip-resistant compound is the result of the manufacturer's experience in competitive rockcrawling with the KX. The new rubber compound is as durable as the KX's, which was not the case with the previous KM. The KM2's tread compound has seen some minor reformulation but is similar to the KM's, which exhibited good treadlife and even wear patterns.

The new tire is slightly heavier than the previous Mud-Terrain KM, which in some cases may affect vehicle performance, ride quality, and highway mileage, but we suspect if you're running aggressive tires like this, optimum fuel economy isn't your biggest concern.

Although we haven't yet tested the KM2 in mud or snow, we have recently had some experience with the tire in tough off-highway conditions. We've found it works very well in hardcore rockcrawling conditions in the harsh deserts of California, and we've also tested it on Colorado's mountain passes. Our first impression? On the highway, in the rocks, sand, and on rocky hillclimbs, we like the new KM2. Under these conditions we didn't experience any loss of traction. We're anxious to see how it does in some really challenging wet conditions, and when we do we'll be sure to let you know how it performs. With that said, if you're looking for a super-tough, all-purpose tire, we recommend picking up a set of BFGoodrich KM2s.

BFGoodrich Mud-Terrain T/AKM2 Radial Tire Sizes
35x12.50R17/D LT245/70R17/E
35x12.50R18/D LT285/70R17/D
37x12.50R17/D LT305/55R20/E
37x12.50R18/D LT305/60R18/E
37x12.50R20/D LT305/65R17/E
38x14.50R17/D LT325/75R16/D
40x14.50R17/C LT325/60R20/D
42x14.50R20/C LT335/55R22/D

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