Losi Rock Rey 1/10 4WD RTR Electric Rock Racer (Blue) w/2.4GHz Radio & AVC

Losi Rock Rey 1/10 4WD RTR Electric Rock Racer (Blue)
Price: $399.99
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The 1/10th 2.2 Rock Rey Rock Racer is incredibly versatile. Not only can it take on rocks with ease, this monster can bash over pretty much anything, anywhere. Through mud and water—at staggering speeds over 40 MPH. It features AVC technology, too.

In-Depth Features: 

Realistic 4WD Chassis with Long-Travel Suspension: The Rock Rey chassis is a brilliant blend of scale realism with functional 4WD capabilities. The foundation consists of a 3.5mm, hard-anodized aluminum chassis plate that is integrated with a realistic roll cage made of super-tough composite material. To this it adds a long-travel, independent front suspension and 4-link live rear axle that look and function exactly like their full-scale counterparts.
  • LED Light Bar: Twelve brilliant LEDs on the light bar cast more than enough light for running at night without placing a huge current demand on the battery.
  • Dynamite® 2800Kv Brushless Power System: The vehicle comes equipped with a Dynamite Fuze™ 2800Kv brushless motor and a waterproof 130A ESC. This potent combination can handle 2S or 3S LiPo batteries (sold separately) and will allow you to hurtle across the landscape at speeds of up to 40+ mph.
  • Sealed, Heavy Duty Metal-Gear Transmission and Diffs: The transmission, as well as the front and center diffs, are sealed against the elements and engineered to handle the abuse of a high-output brushless motor and punishing terrain. MOD 1 gears further increase the durability of this off-road beast.
  • Coil-Over Oil-Filled Shocks: The long-travel shocks do a fantastic job of soaking up the energy from big bumps and jumps. They also feature threaded shock bodies with adjustment collars so you can fine tune the pre-load settings of the coil-over springs. External bump stops on the rear provide plush landings on the hardest surfaces.
  • Waterproof Electronics: The receiver, servo and ESC are all waterproof so you can run anytime, rain or shine.
  • Easy-Access Motor: The motor can quickly be accessed for gear changes and servicing simply by removing three screws in the bottom of the chassis.
  • Easy-Access Battery Compartment: A convenient battery door in the back of the chassis makes it easy to swap batteries without having to remove the body or wrestle with battery straps.
  • Bolt-On Body Panels and Detailed Interior: The bolt-on body panels are incredibly durable and eliminate the need for body posts that might spoil the scale looks. You also get a molded interior that includes a driver and rider figure, both of which sport racing helmet and harness details.
  • The Full-Throttle Freedom of AVC® Technology: When you’re ready to let the brushless motor off the chain, don’t hold back. The receiver’s built-in AVC (Active Vehicle Control®) system will work behind the scenes, making hundreds of tiny throttle and steering adjustments per second, so more of the motor’s power is translated into ballistic speed and acceleration instead of just flying dirt. An AVC adjustment knob on the included DX2E transmitter lets you adjust how much traction control the system provides. You can even turn it off.


  • Realistic Rock Racer chassis design
  • 3.5mm hard-anodized aluminum chassis plate
  • Integrated chassis roll cage
  • Dynamite 2800Kv brushless power system
  • Spektrum™ AVC® technology
  • Long-travel suspension
  • 4-link live rear axle
  • Waterproof electronics
  • Sealed, metal-gear transmission and diffs
  • Coil-over, oil-filled shocks
  • Easy-access battery compartment
  • Bolt-on body panels and interior details
  • Includes Spektrum DX2E transmitter with AVC adjustment
  • Bright LED light bar

: Off-Road Desert Truck
Scale: 1/10
Length: 20.75 in (527mm)
Width: 12.75 in (323.8mm)
Height: 8.75 in (222.3mm)
Ground Clearance: 2.2 in (55.9mm) at rear diff
Wheelbase: 15.0 in (381mm)
Weight: 6.55 lb (3.0kg)
Chassis: 3.5mm Plate, 6061-T6 Aluminum
Suspension: Independent Front/4-Link Rear
Drivetrain: 4wd (locked rear, gear diff front and rear)
Tire Type: Maxxis Creeper Crawler LT
Motor or Engine: 550 6-Pole 2800kv Non-Sensored Brushless
Speed Control: Dynamite 130 Amp WP
Radio: Spektrum DX2E 2.4GHz
Servos: Included
Batteries: 2S 5000mah 30C Li-Po with EC3™ Connectors
Charger: Not Included
Gear Pitch: 1.0 Module
Shock Type: Oil-Filled/Coil-Over Spring
Body: Screened, Polycarbonate
Ball Bearings: Yes


  • (1) Rock Rey Truck
  • (1) Radio System
  • (1) User Manual

Needed To Complete:

  • 7.4V 2S or 11.1V 3S LiPo Battery w/ EC3 Connector
  • Compatible Battery Charger

This product was added to our catalog on February 24, 2017

Verified Owner
Wednesday, Jun 21 2017 (about 3 years ago)
Losi Rock Rey 1/10 4WD RTR Electric Rock Racer (Blue)
It took me a while to get a chance to write a review for the Losi Rock Rey. Because I was too busy running it every chance I got. I really abused it and never had a problem. It's still running strong. It is huge it looks like it is closer to 1/8 scale than 1/10 scale. I would recommend this to anybody looking for a rock racer. The only thing I would change is the servo to a stronger one. Everything else is great!!!. This was my first order with AMAIN HOBBIES and won't be the last. They are great!! They gave me free stickers and a can cooler with their logo. I really appreciate that. I have shopped at another online store for 20 plus years and never even got a sticker. They have great shipping and great support. I can't say enough of how good they are. I will shop there for many years to come. Thank You Amain Hobbies!!!
Friday, Nov 17 2017 (about 3 years ago)
Losi Rock Rey 1/10 4WD RTR Electric Rock Racer (Blue)
This is such a cool and strong Rc truck. Powerful with 3s and can handle a ton of hard beatings. My friend and I each bought one at the same time and we have jumped, launched, and crashed the living hell out of them and they haven’t broke. We actually go out and try to break something and can’t. Except for the body..these trucks keep up with the durability of our xmaxx’s. We’ve had them for about 8 months and no issues besides a bearing and the body’s have gotten beat up. But we’re still using the same one. We both also have the Baja Rey and that truck is freakin sweet too! My next truck from losi will be the new buggy. Very very highly recommend this truck to anyone! Great job losi! If you are into Rc cars this one is a MUST have. Between the 2 of us we have 14 Rc trucks and the losi’s Are the favorites.
Verified Owner
Wednesday, May 3 2017 (about 4 years ago)
Losi Rock Rey 1/10 4WD RTR Electric Rock Racer (Blue)
I'm very happy with this truck. It's a very realistic driving experience and super fun to bash. I have owned a ton of Rc's and I have to say this is firmly in my top 5 Rc's I would recommend.
Wednesday, Mar 15 2017 (about 4 years ago)
Losi Rock Rey 1/10 4WD RTR Electric Rock Racer (Blue)
This is a big tenth scale rig with lots of speed and torque. Fit and finish are great. The led lights are very bright and look cool. The servo horn is junk so do your self a favor and buy a 23t losi metal servo arm right away. The stock one strips out right away. This is a tuff rig to work on with the screw on body, roll bars, and plastic driver its tuff to get to the servo but very do able with some added time. I took out the driver and his buddy and left them out so I can see whats going on in there, and so I can rinse it out to keep it clean in there after driving it. Its also very tippy on pavement when turning fast. if you buy some stadium truck wheels and tires it will do well on pavement. But that being said it is a rock racer and the sticky soft tires work great for what they are designed for. This is a very tuff and well built machine excluding the servo arm of course. Its a blast to drive and worth the cash.
Wednesday, Aug 1 2018 (about 2 years ago)
Losi Rock Rey 1/10 4WD RTR Electric Rock Racer (Blue)
bought my rock rey brand new getting into R/C cars this last week. so far, i love it. built very well and well thought out. the only thing i dont like is the small battery compartment. it has the removable piece to be able to fit a larger battery but youd better check the manual first. other than that so far so good, im going to try and set the ESC for lower power and see how much better it crawls. ALSO this car is perfect for anyone that just wants a car thats good for all types of use and terrain & that can handle a beating.
Verified Owner
Thursday, Nov 12 2020 (6 months ago)
Losi Rock Rey 1/10 4WD RTR Electric Rock Racer (Blue)
Somewhat new to RC but I'm very impressed with this rock basher. I'm running a 3's 5000mah 50c Lipo and this thing is an absolute beast. Like I said new so wasn't sure what to expect but I have jumped, smashed, rolled, abussed this thing pretty hard and I feel it's holding up tremendously for what I've put it through this far. The only thing that has broke is a shock rod end cap stripped out so I ordered a new one but like I said I'm not easy on my stuff I drive it like it's meant to be driven and I fix ithings when they break (if you ain't breaking stuff you ain't doing anything cool) cause eventually something will. But gosh dang this thing is fun and tough as shit, well worth it.
Verified Owner
Thursday, Nov 5 2020 (6 months ago)
Losi Rock Rey 1/10 4WD RTR Electric Rock Racer (Blue)
Awesome rig to go along with my lasernut u4! I've speed tested it and it goes about the same speed as the lasernut does! The rear diff came locked. There's so many parts that can be upgraded to aluminum. Only draw back in my opinion is that the roll cage take alot of screws to remove whereas the tenacity models just lift off and have retaining clips.order a better servo when you checkout
Verified Owner
Wednesday, Oct 21 2020 (7 months ago)
Losi Rock Rey 1/10 4WD RTR Electric Rock Racer (Blue)
Fun as hell not a bank account killer and for what you get it’s super fast runs great perfect Offroad truck for the price and quality
Sunday, Oct 4 2020 (7 months ago)
Losi Rock Rey 1/10 4WD RTR Electric Rock Racer (Blue)
The Rock Rey is a great truck if you're willing to put in the time and money to upgrade it. Unfortunately it's also extremely fragile stock on a 3S battery.

Here's a list of a few of the things that have broken on mine over the last six months:
- Front A-Arm (broke within hours of unboxing the truck)
- Lower Shock Absorber mount (twice)
- One Tire (developed a massive gash after a drag race)
- Front Bumper
- Center diff output shaft
- Stock servo
- Camber link
- Steering link (replacement is on the verge of breaking too, there is no aluminum upgrade, and to get a new one you have to buy the entire bellcrank with it, though this is relatively cheap)

Furthermore, the stock steering is *awful*. I believe Losi when they say the truck can do 40 mph out of the box, but I doubt you'll hit anything close to that speed in a racing situation without AVC, because the steering is so poor. This is thanks to a combination of the stock servo and the plastic steering rack. Out of the box my Rock Rey didn't even drive straight at low speeds without dramatic trim adjustments, and the steering was so unpredictable at speed that any trim adjustments were useless.

In other words, an aluminum bellcrank set from Losi, Hot Racing, or Exotek is a must have upgrade.

Ironically, the one part of the truck that hasn't broken yet is the servo horn. There are a lot of stories from 2017 of the plastic horn becoming stripped; but since then Losi has corrected this issue by adding a metal insert to the horn. An aluminum servo horn is still a great upgrade to the Rock Rey to improve the steering, however. But beware, clamping servo horns like Amain's Protek brand have a big clamp in the back that will hit your servo mount; buy the Losi brand horn or a lower profile horn such as Vanquish's.

However, with the addition of an aluminum steering set, the Rock Rey is a fantastic vehicle. The center diff lets it turn on a dime, even with the stock servo. In my experience the internals are very tough; when I opened up the truck to replace the diff oil a few weeks ago it seemed like a waste of time; the gears were totally pristine.

A few other pieces of advice about upgrades:
- The body has a very nicely designed system that lets you insert a battery without removing the body at all. This system involves fixing the ESC's battery connector to the body through a hole. That hole seems to only fit Dynamite EC3 battery connectors; even an EC3 from Spektrum won't fit in it. Something to keep in mind if you upgrade the ESC
- RPM's A-Arms are excellent and greatly reduced the rate of breakages in the front.
- There's a reason why Losi included aluminum upper links and an aluminum mount in the (now discontinued) Rock Rey Kit: they really help the handling
- The hardware that comes with this kit is very bad and will easily strip if you use allen keys. Invest in a set of high quality drivers; Protek's are excellent
- The motor shaft of the 550 motor that comes with the Rock Rey is very large. If you try to use a 540 motor (and many popular recommendations are for Castle or Holmes Hobbies 540 motors), you will probably need a new pinion, or a shaft sleeve.

I used this truck primarily to race against a cousin with an Arma Typhon, and to do some crawling in stream beds. It's a competent crawler stock, but is easily outclassed by locked diff vehicles like the Gmade GOM, and I doubt it could compete with a serious crawler like a SCX10. The front is too low, and its long, flat belly easily gets caught on taller rocks. Stock, most of the weight is towards the back.

It was completely demolished by $150 cheaper Typhon on any flat terrain, but in the rough terrain of a forest floor it comes into its own, easily rolling over roots, mud and other debris that would stop a buggy in its tracks.
Verified Owner
Friday, May 1 2020 (about a year ago)
Losi Rock Rey 1/10 4WD RTR Electric Rock Racer (Blue)
Excellent quality, fun and durable. Very impressed with this.
Thursday, Aug 9 2018 (about 2 years ago)
Losi Rock Rey 1/10 4WD RTR Electric Rock Racer (Blue)
it is the beast !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! it really is the best
Wednesday, Feb 24 2021 (2 months ago)
Losi Rock Rey 1/10 4WD RTR Electric Rock Racer (Blue)
Get it. You owe it to yourself. If your wife has anything to say, let her know she's lucky you don't own the 1:1 scale. This is cheap fun. I've owned mine for 6-8 months (can't remember exactly) and this makes me smile every time I take it out. I ran on 2S initially until I got a 3S battery.. 3S is the way to go. It's a rugged beast. What made me write this post is what I just put it through. It shouldn't have lived.
I full blasted, max speed nailed this section and flipped it like 100 times.. Twice. (I should have hung it up after the 1st time like I said I was) The mini-rig drove away unscathed. Unreal the abuse it takes. I finally cracked the back of the lexan body, but that's it.

The upgrades I've done are:

-Exotec steering system- Recommend: Its a huge difference in steering stability and strength-

-ProLine Powerstroke Rear Shocks. You don't need them, but they're aluminum bodied, dual spring and definitely better than the plastic stock shock. *SET UP* I run with a lot of preload; Rear due to suspension sag under throttle and Front for the ability to not blow through the stroke on impacts and keep the nose up while turning. Also its important in suspension set up that the front & rear shocks match speed to full extension. Once installed on the car, I push down all the way then watch for the nose or tail to come up first. Make adjustments until the car pops up and gets to extension at the same time. The rear shocks are longer, so the rear will pop up faster than the front, but watch for both finishing extension at the same time.

A lot of videos show people flipping their Reys from simply turning. With my set up there is plenty of suspension and geometry working to help it rotate and not flip. Also, I scotch tape the weep holes in the wheels to trap atmospheric pressure in, acting like an inflated tire instead of just the foam working while all the air blows out.

Those are my tips and review of this sweet machine.
Great quality. Realism. Speed. Intensity. Gitcha some.
Tuesday, Dec 22 2020 (5 months ago)
Losi Rock Rey 1/10 4WD RTR Electric Rock Racer (Blue)
Very competitive platform when tuned. Shock oil,springs,limit straps,new screw hardware,fast eddy bearings. Has been durable too. Once cage is off platform is nice to work on.
Verified Owner
Monday, Nov 30 2020 (5 months ago)
Losi Rock Rey 1/10 4WD RTR Electric Rock Racer (Blue)
I Love my new Losi Rock Rey, I want to order the Baja Rey BND next. Will my Transmitter work with it?
Verified Owner
Tuesday, Feb 25 2020 (about a year ago)
Losi Rock Rey 1/10 4WD RTR Electric Rock Racer (Blue)
Truck is awesome. Great speed decent handling. Tires are super soft so it’s wise to take turns at much less speeds. Even on dirt I find it har to turn at semi-high speeds. Haven’t had much problems with the servo, before I bought this RTR I seen a lot a negative comments on the servo but have ran into those problems yet. Not really much of upgrades need to be done out the box. I then to to look stock but with minor upgrades to parts that break along the way.
Verified Owner
Wednesday, Aug 14 2019 (about a year ago)
Losi Rock Rey 1/10 4WD RTR Electric Rock Racer (Blue)
No cool Losi stickers in the box, dang? Was concerned about durability. Not an issue, steering horn survived two battery packs and all I could dish out without failure. Truly my new favorite RC. I love it