Quick Take
Traxxas pits its two 8S flagships against each other: the bashing-focused X-Maxx versus the speed-oriented XRT. Both run dual 4S packs and 8S power systems, but they attack the hobby from completely different angles. The XRT is faster and cheaper. Hard to argue with that.
The Traxxas X-Maxx 8S and Traxxas XRT 8S share an 8S power system and dual 6700mAh 4S battery configuration, but that is roughly where the similarities end. The XRT hits 60 mph out of the box compared to the X-Maxx's 50 mph ceiling, a significant 20% speed advantage that you will absolutely feel on open pavement or hard-packed dirt. The XRT achieves this despite being heavier at 21.03 lbs versus the X-Maxx's 19.84 lbs, which speaks to Traxxas's more aggressive gearing and aerodynamic body design on the newer truck. When you line them up on a straight stretch, the XRT walks away from the X-Maxx and the gap only grows as both trucks approach their respective limits.
The X-Maxx is a 1/5-scale truck measuring 30.67 inches long and 21.77 inches wide. The XRT is technically 1/6-scale but nearly identical in footprint at 30.12 inches long and 21.65 inches wide. Side by side, most people cannot tell the size difference. The X-Maxx gets a slight edge in ground clearance at 3.38 inches versus 3.15, which matters more than you might think when bashing through tall grass or rough terrain. That extra quarter inch keeps the chassis off rocks and roots that would otherwise scrape the underside and slow the truck down. Both run 4WD brushless setups and both are fully waterproof, so puddles, mud, and wet grass are fair game for either truck without any preparation.
Build quality is comparable since both come from Traxxas's top-tier production line. The X-Maxx has been around longer and has a more proven track record, which translates into a massive aftermarket support ecosystem. You can find X-Maxx parts, upgrades, and accessories at virtually every hobby shop and from dozens of third-party manufacturers. The XRT is the newer design and benefits from lessons learned on the X-Maxx platform, with improved chassis geometry, a more refined suspension setup, and updated electronics. The XRT's chassis feels more planted at speed, which is critical when you are running 60 mph over uneven terrain. Both trucks will survive serious abuse, but the X-Maxx's slightly lighter weight of 19.84 lbs versus 21.03 lbs means less kinetic energy on impact during hard landings and crashes, which translates to marginally lower stress on drivetrain components over time.
Battery and runtime are essentially identical since both use the same dual 4S configuration with 6700mAh packs. Expect 20-30 minutes of runtime depending on how aggressive your throttle finger is. Running 8S means battery costs are significant for both trucks. A pair of quality 4S 6700mAh packs will run a significant amount, and you will want at least two sets for a proper afternoon session at the park. Charging also takes time with two packs per truck, so a dual-output charger becomes almost mandatory.
The real value story here is price. The XRT comes in at its flagship price a full considerably less than the X-Maxx at its flagship price. You get a faster truck for less money with the XRT, which is a compelling argument. The X-Maxx commands its premium through brand legacy, the largest aftermarket catalog in the 8S class, and a marginally better rough-terrain bashing experience thanks to that extra ground clearance and lighter curb weight. If you already own one and are considering the other, the XRT makes a great speed complement to the X-Maxx's bashing prowess. But if you can only pick one, the XRT gets you more performance per dollar and represents the more modern design. The X-Maxx remains the sentimental favorite and the better-known truck, but the numbers favor the XRT.
The X-Maxx has the biggest aftermarket of any 8S truck and slightly more ground clearance. If parts availability at your local shop matters, this is the safer bet.
Full reviewThe XRT is faster and considerably cheaper. More modern chassis, better high-speed handling. The numbers favor it pretty clearly.
Full reviewTraxxas X-Maxx 8S
Traxxas XRT 8S
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