Traxxas XO-1 Review [The Speed Demon RC Car]

Last Updated on December 25, 2023 by Jaxon Mike

The Traxxas XO-1 is an impressive high-performance radio-controlled (RC) car designed for incredible speed. With its unique aerodynamic design and powerful brushless motor, the XO-1 can reach speeds over 100 mph out of the box, making it the fastest RC car in its class.

Design & Build Quality

The most noticeable aspect of the Traxxas XO-1 is its specialized design optimized for maximum top speed. The sleek body is made from .25mm graphite and styled after high-performance supercars. The low-profile chassis and enormous rear wing generate ample downforce to keep the car planted at speed.

Despite its delicate appearance, the XO-1 has a rugged 4mm thick chassis milled from 6061-T6 aluminum alloy. Beefy suspension arms, heavy-duty driveshafts, and oil-filled GTR shocks make this car highly durable for high-impact racing. The drivetrain uses metal gears instead of plastic for strength.

The electronics are fully waterproof so you can bash through puddles and wet grass without issues. Little touches like the foam bumper, LED lights, and side mirrors add to the premium look and feel.

Pros & Cons

Now that we’ve covered the features and performance of the Traxxas XO-1, let’s summarize the key pros and cons of this incredible speed demon RC car.

Pros

• Incredibly fast out of the box, over 100 mph capable
• Aerodynamic design optimized for top speed
• Durable and rugged construction withstands abuse
• Waterproof electronics allow driving in any condition
• Huge aftermarket part support unlocks customization
• Telemetry and programming with Traxxas Link
• Included batteries and charger for out-of-box use
• Traxxas support and documentation is top-notch

Cons

• Very expensive for an RC car (around $1,200)
• Eats through consumables like tires at high speed
• Not suitable for beginner or novice RC drivers
• Requires large open areas to reach top speed safely
• No included wheelie bar means reckless wheelstands

Features & Technology

The power plant of the Traxxas XO-1 is a Velineon 3500 brushless motor specially engineered for maximum rpm and minimum weight. This motor has unrivaled torque and efficiency to launch the XO-1 from 0 to over 60 mph in just over 2 seconds!

Some key specs on the Velineon 3500 motor:

• Peak power output over 3500 watts
• Ultra-high Kv rating for incredible rpm
• Neodymium magnets for strong magnetic field
• Copper windings to handle high currents
• Efficient cooling system to prevent overheating
• Super lightweight design to reduce rotating mass

Converting the massive power into controllable speed is the XL-5 ESC (electronic speed control). This high-performance ESC can handle up to 15-cell LiPo batteries and 200+ amps of current on demand. The integrated cooling fan keeps temperatures in check during long high-speed runs.

The XL-5 ESC has programming features like brake adjustment, drive frequency, LiPo cell count, and more. It can be connected to Traxxas Link software for detailed telemetry data and adjustability. The XL-5 mount helps isolate vibration from the chassis.

Transferring all that brute power to the ground is a set of precision-machined metal spur gears. The transmission uses a 1:7.33 ratio to let the motor reach its insane rpm potential. The driveline is supported by industrial-grade 5x11mm ball bearings for maximum efficiency.

Performance & Speed

Now for the fun part – seeing what this RC beast can do when uncaged! The performance of the Traxxas XO-1 is simply mind-blowing. Right out of the box with the included 8-cell 25C LiPo battery, it can easily hit speeds over 100 mph!

The insane acceleration is almost violent, slamming you back into the seat as the wheels struggle for traction. The XO-1 leaps from 0 to over 60 mph in just over 2 seconds – a rate that challenges most supercars.

Once up to speed, the stability is impressive considering the speeds involved. The long wheelbase and low center of gravity keep things under control. The massive rear wing pushes down with up to 3kg of force at full speed.

The top speed will depend on your battery setup and gearing. With the right modifications, the XO-1 can go well over 150 mph! However, even bone stock this car dominates nearly anything else in its class for outright top speed.

Here’s a cool video showing just how blisteringly quick the XO-1 is in stock form:

[Embed video of XO-1 acceleration and top speed run]

Handling & Control

Given its focus on straight-line speed, the handling of the XO-1 is not going to rival drift cars. However, Traxxas put effort into making this speed demon controllable at the limit.

The low center of gravity and wide stance give the chassis inherent stability, resisting rollover forces at speed. The GTR shocks use firm pistons and 30W silicone oil to resist body roll and dive during hard launches and braking.

For high-speed stability, the wheelbase measures a lengthy 18.4 inches. The rear toe is adjustable so you can tune rear grip. The steering servo torque is also adjustable for tuning steering feel.

Out of the box, the XO-1 tends to understeer slightly. This makes it easier to control for new drivers. As you get comfortable, stiffer sway bars and revised shock pistons can add some oversteer for experienced drivers.

Considering its sheer speed potential, the XO-1 handles surprisingly well. The stability control programming in the XL-5 ESC helps smooth out loss of traction events. When driving at saner speeds, the XO-1 turns and jumps respectably thanks to its race-bred heritage.

Upgrades & Modifications

While fast in stock form, the XO-1 has nearly unlimited modification potential to extract even more speed. Here are some popular upgrades RC enthusiasts use to push this car over 150+ mph:

Batteries

• Higher voltage LiPo packs (10S or 12S)
• Capacity over 5000mAh for longer run times
• High discharge C-ratings (80C+)

Gearing

• Smaller pinion gears (13T or 14T)
• Larger spur gears (90T+)

Wheels & Tires

• Larger diameter wheels
• Belted tread tires for less ballooning

Power System

• Higher Kv brushless motors
• Higher amperage ESCs

Chassis & Drivetrain

• Carbon fiber chassis bracing bars
• Steel constant velocity (CV) axles
• Aluminum transmission cases

Aero & Appearance

• Larger rear wing
• Wheelie bar for controlled wheelstands
• Underglow lighting kit

While the XO-1 has some downsides, its record-shattering speed capabilities outweigh most cons for RC enthusiasts seeking the ultimate thrill machine. Just be prepared for the extra costs and learning curve associated with such a high-performance vehicle.

Frequently Asked Questions

How fast can the XO-1 really go?

With the right upgrades and conditions, the XO-1 can exceed 150 mph, making it the fastest RTR RC car by a huge margin. Even box stock it can hit over 100 mph on pavement.

What’s needed to go 100+ mph?

Minimally, a high voltage LiPo battery (8S+), an open area, and calm winds. Good surfaces like asphalt or concrete are best to reduce rolling resistance.

Is the XO-1 easy to control at high speed?

It’s certainly a handful at 100+ mph, but the stability programming helps a lot. Taking it slow to build confidence is key before going wide open throttle.

How long do the batteries last?

At full throttle, expect 5-10 minutes per charge. Using lower speeds naturally allows longer run times. Multiple battery packs are recommended.

What kind of maintenance is required?

Watch for overheating of the motor and ESC. Change the gear lubricant periodically. Inspect the wheels, driveline, and shocks for damage. Replace the belt if it shows wear.

Conclusion

The Traxxas XO-1 represents the bleeding edge of RC car technology, making it the current fastest RTR (ready-to-run) car available. While not cheap, it provides an unparalleled level of speed and power straight from the box.

With its specialized aerodynamic design, velvety smooth powertrain, and robust construction, the XO-1 dominates all but the most heavily modified RC cars in terms of outright top speed. Yet despite its performance, it remains friendly enough for intermediate hobbyists to handle safely.