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.
- 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
Type: Off-Road Desert Truck
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
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
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.
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.