Traxxas X-Maxx Review: The Ultimate 8S Monster Truck (2026)

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The first time I lifted the Traxxas X-Maxx out of its box, my Slash 4×4 was sitting right there on the workbench. I set the X-Maxx next to it and genuinely laughed out loud. The thing is enormous. Not "big RC car" enormous — more like "is this street-legal?" enormous. Eight-inch tires. A wheelbase nearly 19 inches wide. A body that your average cat could comfortably nap on.

That size is the whole point. The X-Maxx has been Traxxas's halo monster truck since late 2015, and it remains one of the most recognizable — and most debated — RC vehicles on the market. It runs on a dual 4S LiPo setup for a combined 8S total, pushing a Big Block Velineon motor through an overbuilt driveline that's earned a reputation for surviving abuse that would destroy smaller trucks outright.

But at $1,100+ before you even buy batteries, it's not a truck you buy casually. The real question in this review: does the X-Maxx still justify that premium in a market where the Arrma Kraton 8S is a serious rival and Traxxas's own Maxx 4S delivers 80% of the experience at half the price? Let's get into it.

Traxxas X-Maxx — Specs at a Glance

A note on scale: Traxxas officially calls the X-Maxx "Maxx-Scale" and has historically cited 1/5, but current retailer pages from AMain Hobbies and HobbyTown list the 77096-4 as 1/6. Whatever the technical ratio, the practical point is the same: this is a large-format vehicle in a class by itself among mass-market electric monster trucks. For more context on how RC scale sizes work, see our RC car scale sizes explained guide.

→ Check the current price on Amazon

What Makes the X-Maxx Different? (Scale Matters)

Traxxas launched the X-Maxx in late 2015, initially configured for 6S power. At the time, the RC monster truck world had a pretty clear ceiling: 1/10 scale trucks like the Traxxas Maxx or the E-Revo were the big dogs. Above that, you had the occasional niche large-scale build, but nothing mass-market and RTR. The X-Maxx changed that. It created a category — the mainstream, RTR, ready-to-bash large-format monster truck — that simply hadn't existed before.

The difference between a 1/10 truck and the X-Maxx isn't just size. It's presence. When you run a Slash or a Maxx 4S, it's a great RC experience. When you run an X-Maxx, bystanders stop what they're doing. The 8-inch tires roll over obstacles that 1/10 trucks bounce off. The ground clearance of 4 full inches means curbs, rocks, and drainage channels are basically non-events. Running through a section of deep grass that would strand a Stampede? The X-Maxx doesn't even slow down.

Traxxas built several key features into the platform that distinguish it from everything else at this scale. The self-righting function — activated by a button on the TQi radio — uses the motor and brake system to flip the truck right-side up in a couple of seconds. No retrieving a 20-pound truck that landed on its lid in the middle of a field. The Traxxas Stability Management (TSM) system actively counteracts oversteer, which matters a lot on a truck this heavy moving at 50+ mph. There's also the Traxxas iD battery system, which identifies your packs automatically and configures the ESC accordingly. Convenient? Yes. But it also means you're tied to Traxxas batteries or aftermarket iD-compatible packs to avoid bypassing the system entirely.

The X-Maxx is also Traxxas's Halo product — the truck in the lineup that makes everything else seem reasonable by comparison. It serves a real purpose for a specific buyer: someone who wants the most dramatic bashing experience possible, who has the space (and vehicle) to transport a 30-inch truck, and who has the budget to feed it two premium 4S packs per session. That's not everyone. But for those buyers, nothing else quite scratches the same itch.

For a full look at where the X-Maxx fits in Traxxas's broader lineup, check out our complete Traxxas brand guide. For a brushless motor explainer on what makes the Big Block 1200XL worth paying attention to, we've got you covered there too.

X-Maxx — Bashing & Speed Performance

On 8S, the X-Maxx pulls with authority. Stock top speed is rated at 50+ mph on the standard 15T/54T gearing, and Traxxas includes a faster 18T/46T pinion/spur set in the box that pushes the truck past 60 mph if conditions allow. Realistically, most X-Maxx owners never need the speed gearing — 50 mph in an 8.66 kg truck with an 8-inch tire footprint is already more than enough to keep things interesting.

Where the X-Maxx genuinely shines is in raw bashing versatility. The combination of massive ground clearance, huge tires, and significant vehicle mass means the X-Maxx absorbs terrain in a way smaller trucks can't. I've run it through sections of the local park that I'd normally avoid with a 1/10 — rutted ground, chunky gravel, patches of long grass — and the X-Maxx treated all of it like a mildly interesting texture to roll over.

Jumping is spectacular. The truck has enough weight and chassis stiffness to hold a predictable arc in the air, and the 4-inch ground clearance on landing means you're not scraping electronics on the way down. Full-throttle off a dirt jump and the X-Maxx gets genuinely airborne — the kind of jumps you see in slow-motion videos. Self-righting is more than a gimmick here: when you land inverted off a particularly ambitious angle, holding the button and watching the truck flip itself upright feels like a genuinely satisfying engineering trick every single time.

The waterproofing is legitimate. The VXL-8s ESC, TQi receiver, and 2085-series servo are all sealed. I ran mine through standing water and a wet grass section after a rain, and everything kept working without issue. You're not going to drown this truck in a puddle. A full water crossing is realistic as long as the water isn't deep enough to float the chassis — and even then, the buoyancy from the big tires buys you some margin.

On pavement, the X-Maxx is fast and dramatic, but tire wear is a real consideration. Running those 8-inch tires on asphalt at speed burns rubber noticeably faster than dirt or grass. If you're doing mostly street runs, budget for replacement tires more frequently, or look at harder-compound aftermarket options. Dirt, gravel, and grass are where this truck is happiest. See our best RC trucks and bashers guide for how the X-Maxx compares against the full field of bash trucks.

Build Quality & Durability

The X-Maxx's reputation as a near-bulletproof basher is largely earned, but "bulletproof" has limits at this power level. Let's be honest about what holds up and what doesn't.

What's genuinely tough: The composite nylon chassis tub is thick and energy-absorbing. The metal driveshafts are massively oversized for the scale. The differentials are sealed and oil-filled. The VXL-8s ESC is one of the most refined 8S controllers on the market — it runs cool, the LVC (Low Voltage Cutoff) is reliable, and the Traxxas iD system adds a legitimate safety layer by preventing ESC misconfiguration. The body shell is thicker than most in the class, and Traxxas's clipless body retention system means no lost body clips — a genuine quality-of-life win at this scale. The wheels and tires are massive enough to soak up low-speed impacts that would crack the rims on a smaller truck.

What breaks: Here's where I'll be straight with you.

The cush-drive input shaft (TRA 7786X) is the X-Maxx's most frequently reported failure point on hard, asymmetrical impacts — side landings, concrete wall strikes, that kind of abuse. The stock part is serviceable for normal bashing but will let go eventually under repeated hard use. The Hot Racing SXMX38CDA S2 spring-steel input shaft replacement is the go-to fix, and it's a weekend install.

The stock 2085-series steering servo delivers ~365 oz-in of torque. On a truck this size, with 8-inch tires, that's adequate for casual bashing but starts to feel strained at high speed or in thick mud. It's not a disaster out of the box — don't let that stop you from buying the truck — but a servo upgrade is realistically on your to-do list within the first few months of regular running.

Tire glue has historically been an issue at high speed on the non-belted Maxx tires — the rubber can debead from the wheel. This is specifically why Traxxas moved to factory-belted Sledgehammer tires on the current 77096-4 RTR. The belted construction resists balloon-out at speed. If you're buying used or running the older 77086-4, make sure the tire glue is fresh or add your own CA reinforcement bead.

Transport and storage are real logistical challenges that nobody mentions enough. The X-Maxx is 29.84 inches long, 21.26 inches wide, and 13.79 inches tall. It does not fit in a standard RC car bag. It does not fit in a compact car's trunk without removing the body or angling it awkwardly. You need an SUV, a pickup bed, or a dedicated roll cart. Plan accordingly before you bring this thing home.

For aftermarket body protection and shell options compatible with the X-Maxx, check our best Traxxas X-Maxx body shells guide.

X-Maxx Versions & Updates Over the Years

Understanding which X-Maxx you're buying — or finding used — matters. Here's the actual timeline:

Buying used: If you find a used X-Maxx, the 8S models (77086-4 and later) are the ones to target. Avoid the original 77076-4 6S version unless it's already been updated. Check that the VXL-8s ESC (not the older VXL-6s) is installed, and ask about the cush-drive and CV shaft condition before buying.

X-Maxx vs Arrma Kraton 8S — The 1/5 Battle

This is the comparison everyone asks about. The Arrma Kraton 8S EXB is the X-Maxx's most direct rival, and the honest answer is that each truck has meaningful advantages depending on your priorities.

For the full picture on Arrma's broader lineup, see our Arrma RC cars guide, and our Arrma Kraton 6S review for context on the smaller sibling.

Where the Kraton 8S EXB wins: The Kraton's aluminum EXB chassis plate, hardened bulkheads, and beefier stock servo (820 oz-in vs ~365 oz-in) give it a structural edge on flat-landing big air and raw ground-pounding impact. The Spektrum Smart ecosystem provides real-time telemetry via Bluetooth — you can see voltage, motor temperature, and amp draw on your phone during a run. AVC (Active Vehicle Control) is Arrma's version of stability management, and the Kraton 8S EXB is legitimately faster out of the box on its stock gearing. And the price advantage — roughly $100–$200 cheaper depending on where you buy — is real.

Where the X-Maxx wins: The X-Maxx is nearly 5 pounds lighter than the Kraton 8S EXB, which has a bigger impact on durability than most people expect — less mass behind every impact. Self-righting is not a gimmick when you're running a truck that regularly inverts itself; it's a functional feature that saves minutes of retrieving per session. The composite chassis flexes and absorbs energy rather than transmitting it to bulkheads. The sealed drivetrain handles mud and wet conditions with notably less drama. And the Traxxas parts ecosystem — available at virtually every hobby shop in the country with next-day shipping in many cases — is an underrated advantage for anyone who runs their truck hard.

Bottom line: If you want raw speed and structural rigidity, the Kraton 8S EXB is the pick. If you want the complete large-scale bash experience with self-righting, lighter weight, and simpler maintenance, the X-Maxx is the truck. They're genuinely different machines, and "better" depends entirely on your use case.

→ Check the Kraton 8S price on Amazon

The Arrma Kraton 8S — not to be confused with the Kraton 6S or the Arrma Outcast 6S (which is the stunt truck variant) — is the specific competitor here. The Arrma Limitless is another beast entirely, oriented toward speed runs rather than bashing.

X-Maxx vs Traxxas Maxx 4S — The Sibling Gap

This is arguably the more important comparison for most buyers, because the Maxx 4S and X-Maxx are often cross-shopped against each other at very different price points.

The honest takeaway: the Maxx 4S is genuinely fast (stock top speed actually exceeds the stock X-Maxx gearing), shares the same Traxxas ecosystem (TQi, TSM, iD batteries, self-righting), and delivers a very satisfying bash experience. You can charge it with a single-port charger, toss it in the trunk of a Civic, and run it in a large parking lot. The X-Maxx requires two packs, a dual-port charger, and a vehicle large enough to haul something the size of a large piece of carry-on luggage.

What does the extra $400–$600 (plus $160 in extra batteries) get you with the X-Maxx? Scale presence. The visual and tactile experience of a truck that rolls over obstacles instead of bouncing off them. The ability to run through terrain that would strand the Maxx. And a machine that draws a crowd at any bashing session in a way that a 1/10 truck — however capable — simply doesn't.

If you're upgrading from a smaller truck and want to understand where the Maxx 4S sits in the lineup, read our Traxxas Maxx 4S review for the full comparison. For battery logistics at this scale, our RC LiPo battery guide covers everything you need to know about the dual 4S setup, iD compatibility, and pack care.

→ Check the Traxxas Maxx 4S V2 price on Amazon

The Traxxas Sledge is another Traxxas option worth mentioning in this space — it's a race-pace 6S truck with a very different character — but it's in its own category and we'll cover it separately. Similarly, the Traxxas Hoss 4×4 VXL sits at a different scale and use case that's worth exploring if you want something more park-friendly.

Best Upgrades for the X-Maxx

The X-Maxx is capable enough stock that you don't need to modify it immediately. But there's a clear priority order for upgrades based on what actually fails and what makes the truck meaningfully better.

1. Servo Upgrade — 2085X or 2085R (Priority: High)

The stock 2085-series servo at ~365 oz-in is the weakest link in the stock driveline for anyone who bashes hard. The Traxxas 2085X (~450 oz-in metal gear) is the established first upgrade — direct swap, plug-and-play, significant improvement in steering response and centering at high speed. If you want more, the 2085R/2085RL (650 oz-in) is the step up from there.

→ Check the Traxxas 2085X servo on Amazon

Budget: $60–$110 depending on the 2085 variant.

2. Cush-Drive Input Shaft & CV Drive Shafts — Steel Upgrade (Priority: High)

The stock cush-drive input shaft (TRA 7786X) and stock CV drive shafts are the most commonly broken parts on hard impacts. Hot Racing's SXMX38CDA S2 spring-steel cush-drive input shaft is the standard fix for the transmission input side. Their XMX288CE steel HD CV drive shafts (with aluminum hex ends) address the axle side. These are the parts that let X-Maxx owners say "it survives everything" — because they replaced the soft points.

→ Search Hot Racing X-Maxx steel upgrades on Amazon

Budget: $30–$60 per set depending on which shaft you're replacing.

3. Batteries — 2× Quality 4S Packs (Priority: Essential)

You can't run this truck without them. The Traxxas 2890X 4S 6700mAh iD hardcase LiPo is the factory-recommended pack and, for all practical purposes, the right choice for most X-Maxx owners. It fits the tray, works with iD auto-configuration, and provides a solid runtime — roughly 20–30 minutes of moderate bashing per pair. You need two. Buy both at once; you'll want them.

→ Check the Traxxas 2890X 4S 6700mAh battery on Amazon

Budget: ~$160 per pack, ~$320 for the pair.

For everything you need to know about managing LiPo packs at this scale, see our RC LiPo battery guide (linked in the sibling comparison section above).

4. Dual-Port Charger — Traxxas EZ-Peak Live Dual (Priority: Essential)

A single-port charger on two 6700mAh packs is a multi-hour wait between sessions. The Traxxas EZ-Peak Live Dual (model 2973) charges both packs simultaneously, supports 4S iD recognition, and has onboard 200W output. It is effectively mandatory equipment if you're serious about running the X-Maxx regularly.

→ Check the Traxxas EZ-Peak Live Dual on Amazon

Budget: ~$200. See our full RC car battery charger guide for alternatives and comparisons.

5. WideMaxx Suspension Kit — Traxxas #7895 (Priority: Medium)

The WideMaxx kit widens the X-Maxx's track by 2.36 inches (60 mm) total, significantly improving high-speed stability and reducing rollover tendency on banked turns. It comes in five colors to match the truck's body and includes all necessary hardware. This is the upgrade that makes the X-Maxx handle like it looks like it should — planted and wide.

→ Check the WideMaxx Suspension Kit on Amazon

Budget: ~$100–$130.

6. Body Protection — Pro-Line Brute Bash Armor (Priority: Medium)

Pro-Line's Brute Bash Armor body for the X-Maxx is made from thick, flexible TPU-style material that dramatically outlasts the stock polycarbonate body under hard running. It comes pre-cut and in white or black. The tradeoff is slightly heavier weight, but for anyone running the truck regularly on rough terrain, the reduced body replacement cost pays off quickly.

→ Check the Pro-Line Brute Bash Armor body on Amazon

Budget: ~$55–$70.

7. RPM Bumpers (Priority: Low-Medium)

The stock X-Maxx bumpers do their job, but RPM's replacement front and rear bumper mounts are noticeably more durable under repeated impacts and look cleaner on the truck. A simple, cost-effective protection upgrade.

→ Check RPM X-Maxx bumpers on Amazon | RPM Front Bumper Mount

Budget: ~$12–$15 per bumper.

8. Transmitter Upgrade — Spektrum DX5 Rugged (Priority: Low)

The TQi is a capable radio with solid range, TSM integration, and Traxxas Link telemetry support. Most X-Maxx owners never need to replace it. But if you run in wide-open spaces at high speed and want more channels, better thumb feel, or Bluetooth telemetry without using your phone, the Spektrum DX5 Rugged is the logical step up. Compatible with the TQi receiver via spectrum crossover or dedicated RX swap.

→ Check the Spektrum DX5 Rugged on Amazon

For a full breakdown of upgrade radio options across all RC platforms, see our best RC car transmitters guide.

Budget: ~$230–$250.

9. Pinion Gear Speed Upgrade (Priority: Situational)

Traxxas includes the 18T/46T alternate gearing set in the box with the current RTR. If you've already installed it and want to push further, hardened steel pinion/spur combos from the aftermarket reduce the chance of gear stripping at high pinion ratios. Only relevant if you're chasing top speed. Budget: ~$25–$45.

FAQ

Conclusion

The Traxxas X-Maxx is exactly what it claims to be: the most complete, ready-to-bash, large-format electric monster truck on the mass market. After years of production, the platform remains relevant because the core formula is hard to beat — an overbuilt driveline, waterproof electronics, self-righting, Traxxas iD battery integration, and a parts ecosystem broad enough that you'll almost never wait on a repair. The move to factory-belted Sledgehammer tires on the current 77096-4 RTR addressed the most common complaint from the original run. The WideMaxx upgrade is a genuine improvement. And the truck's reputation for surviving abuse that would total most other vehicles is well-deserved.

That said, this is not a truck for everyone. You're looking at $1,100+ for the RTR, $320 for the battery pair, and $200 for the dual charger — a realistic all-in entry cost of around $1,500. You need a large vehicle to transport it, a substantial outdoor space to run it, and a realistic plan for ongoing parts maintenance (servo upgrade and steel CV shafts are practically expected within a few months of regular use). If the Maxx 4S covers your needs, it's the smarter buy. If raw speed is the goal and you can live without self-righting, the Arrma Kraton 8S EXB is a compelling alternative. And if you're curious about the Traxxas Sledge — a different kind of large-scale truck built more for race pace than all-terrain bashing — that one deserves its own look.

But if you want the most dramatic, most capable, most conversation-starting RTR bashing truck that Traxxas builds? The X-Maxx is still the answer in 2026. It's a truck that rewards the investment — as long as you go in with clear eyes about what that investment actually costs.

→ Check the current X-Maxx 8S price on Amazon — and see our full Traxxas brand guide for the complete lineup, or our best RC trucks & bashers hub to compare the X-Maxx against the full field before you commit.