Arrma Kraton 6S BLX vs Traxxas XRT 8SWhich Should You Buy?

Putting the Arrma Kraton 6S BLX next to the Traxxas XRT 8S is almost unfair from a visual standpoint. The XRT is physically massive at 30.12 inches long and 21.65 inches wide, dwarfing the Kraton's 21.85-by-16.73-inch footprint. At 21.03 lbs, the XRT weighs nearly double the Kraton's 10.69 lbs. You need two hands to lift the XRT comfortably, while the Kraton can be carried in one. Yet both trucks hit 60 mph, which says everything about the XRT's enormous 8S power system and the Kraton's strong efficiency on 6S.

The XRT runs dual 6700mAh 4S packs in an 8S configuration, delivering enormous torque through an oversized drivetrain. The Kraton uses a single 5000mAh 6S pack. The XRT's power advantage is not reflected in top speed because all that extra power is fighting against double the mass. Where you feel the difference is at lower speeds and in challenging terrain. The XRT powers through deep grass, soft sand, and rocky terrain that slows the Kraton noticeably. It just has so much torque that obstacles are irrelevant. The driving experience is viscerally different, like the difference between driving a sports car and a trophy truck.

Ground clearance heavily favors the XRT at 3.15 inches versus the Kraton's 2.17 inches. Combined with its 19.29-inch wheelbase versus the Kraton's 13.15, the XRT rolls over rough terrain like the bumps are not there. The long wheelbase smooths out surface irregularities that bounce the shorter Kraton around. However, the Kraton is nimble by comparison, able to change direction faster and fit into tighter spaces. At a skate park, in a confined backyard, or on a small track, the Kraton is genuinely more fun because the XRT feels unwieldy in tight spaces and takes forever to turn around.

Durability is strong on both platforms, engineered for their respective weight classes. The XRT is built to handle the abuse of an 8S system accelerating and stopping 21 pounds of truck. Everything is oversized: differentials, driveshafts, bearings, axles, suspension components. The Kraton's 6S drivetrain is proportionally just as robust for its weight class and has been proven over years of community abuse. Both trucks will survive regular bashing sessions, but XRT replacement parts cost more due to their larger size and more complex components. A broken XRT A-arm or diff case costs noticeably more than the Kraton equivalent.

Battery economics clearly and significantly favor the Kraton. A single 6S pack costing a moderate amount runs the Kraton for a full session. The XRT requires two 4S packs costing a moderate amount total per charge cycle, nearly doubling your battery investment to get running. You also need twice the charging time, either waiting longer with a single charger or investing in a dual-output charger. Over a year of weekly driving, the battery cost difference alone can approach a significant amount depending on how many spare packs you buy. Runtime is similar for both trucks since the XRT's larger battery capacity offsets its higher power draw, typically 20-30 minutes per charge.

The Kraton at its mid-range price versus the XRT at its flagship price represents a competitive price purchase price gap. Add in higher battery costs, more expensive replacement parts, and the need for a more capable charger, and the total ownership cost difference over the first year can easily a substantial amount. The XRT is the bigger, faster machine in every physical dimension, but the Kraton hits the same top speed in a more practical, more affordable, and far more manageable package. Unless you specifically want the spectacle and overwhelming presence of a 1/6-scale truck, the Kraton is the smarter purchase.