The Traxxas XRT 8S Extreme 4WD Brushless RTR Race Monster Truck isn’t your typical backyard basher. This thing’s built for pure speed and control. It shares DNA with the X-Maxx but takes a more track-oriented approach—lower stance, tighter handling, and loads of power right out of the box.
Quick Look: What Makes the XRT Tick
- ESC & Motor: The VXL-8s ESC handles 8S setups with ease. It’s paired with a 1275kV 4-pole motor and backed by dual cooling fans plus a thick aluminum heatsink. Heat is not an issue here.
- Speed Potential: Drop in two solid 4S LiPos and install the speed gear, and you're hitting 60+ mph on flat ground. It's fast—very fast.
- Grip & Ride: Gravix 7.4" tires bite into grass, dirt, or pavement. A wide footprint and low center of gravity keep it planted, even during quick direction changes.
- All-Metal Drivetrain: Steel gears, aluminum center shafts, and the same core structure as the X-Maxx—just tighter and faster.
- Ease of Use: Clipless body mounts make access fast. There’s even a wheelie bar with a grab handle—convenient and functional.
What Versions Are Out There?
- RTR (Ready to Run): Truck and radio included. Just add batteries and charger.
- Combo Pack: RTR + two 4S 6700mAh LiPos + charger. For folks who want a plug-and-play setup.
- Ultimate: Upgraded driveline, aluminum parts, and a few extras. Built to take a beating.
How Does XRT Stack Up?
| Model | Strength | Weakness |
|---|---|---|
| Traxxas XRT 8S | Precise handling, fast on flat ground | Not great for rocky trails or crawling |
| Traxxas X-Maxx | Tough, floats over rough terrain | Tends to tip in corners, slower response |
| Arrma Kraton 8S | Strong metal build, big air capable | Feels heavy, less agile at speed |
Which Batteries Work Best?
We’ve seen tons of battery combos run on this truck. But two CNHL options keep popping up as the top picks:
- 9500mAh 4S 90C: Long runtimes and heavy punch. Great for open spaces and power-hungry surfaces.
- 6200mAh 4S 90C: Snappy acceleration, lighter weight. If you care about handling and agility, this one’s for you.
Heads-up: The XRT is designed for 8S. That means you’ll need two 4S batteries wired in series. Don’t mix and match—use identical batteries for safe performance.
Since CNHL uses EC5 plugs, you’ll want an EC5-to-TRX adapter to connect to the XRT’s wiring harness. No soldering, no drama.
What XRT Owners Are Saying
On RC forums and Reddit, 9500mAh users say they get long, hard sessions without voltage sag. It’s heavier, yes—but the punch is worth it. Meanwhile, racers using the 6200mAh pack love the way their trucks snap into turns and stay planted at speed.
Final Thoughts
We’ve run both of these packs in XRT builds. If you want maximum runtime and raw torque, go 9500. If agility and throttle feel matter more, go 6200. Either way, you’re upgrading from stock, and you’ll feel the difference on the first run.
Want to browse more options? We’ve got a full collection here: View All Traxxas XRT-Compatible LiPo Batteries
FAQs
How many batteries do I need for the XRT 8S?
Two 4S packs, wired in series. That’s the only way to get full 8S power.
Do CNHL batteries fit the XRT battery tray?
Yes. Both 9500mAh and 6200mAh 4S options slot right into the dual battery trays.
Do I need any special adapter?
If you're using CNHL packs, grab an EC5-to-TRX adapter. They’re inexpensive and plug right in.
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