Dessert First: My Conclusion

A cheeky spoiler first: the new Rlaarlo JK07 Pro has quickly become one of my all-time favourite RC vehicles.

Now, I want you to appreciate what a momentous feat this is. I’ve been into RC since the 1980s and currently have a shipping container to hold my models. There’s a total of 7.5m (26ft.) of shelving, with 6 levels, to store my 1/10 and larger models, side-by-side. I have many, many RC cars as part of my RC-TNT ‘library’ of models for content creation.

Okay, so once more, the Rlaarlo JK07 Pro is one of my all-time favourite RC vehicles. Now you may see what a big deal this is!

The Search for Scale

This is not a review of the Rlaarlo JK07 Pro. (I do have a video for that, if you’re interested – it’s at the end of this article). But no, today, I am inspired to tell you a bit of a story. It’s still ultimately about the new 1/7 scale beauty from the pointy green R, but it’s quite personal and very much a recalling of times past and dreams unfulfilled – until now. But I get ahead of myself.

I have Rlaarlo to thank for inspiring me to share this with you. I also must thank them for sending me one of their rare ‘Pro’ versions of their epic new trail truck. So, grab a coffee, find a comfy seat, and please enjoy my tale of…

The Search for True Scale!

Four Decades Ago…

I had a blessed childhood. I’m well aware of that. My parents were soil scientists and throughout the 1980s and 90s, they travelled in their Toyota Landcruiser 60 series (and later, 80 series) crisscrossing the many trails of much of the NSW public forested land. They dug small holes, took soil samples, and assembled reports about the state of the land for the NSW Forestry Commission. Some of those reports are still in use and I heard recently they are still today considered the gold standard for this sort of work. Way to go, mum and dad!

I was the eldest of three kids. I’ve always been a tinkerer and have always, always loved things that go. My first word was ‘car’, followed by ‘mum’. That should tell you something! Well, we kids sometimes rode along with our folks on some of their shorter forestry trips. We stayed up the road with our grandparents for the other, longer ones – still had to go to school, after all! But those trips were pretty great.

Grounded

My Dad had installed a small, 12V TV on the center console of the Landcruiser and a 12V VCR underneath it (it played analogue video tapes on the TV, for those of you born this century). We’d bring snacks and some toys and would play near the car, make things from sticks, and generally just be kids between the many stops mum and dad would make.

One thing I always took along with me was a small RC car. But it was a two-wheel drive thing that ran on 4x AA batteries and with the electronics of the late 80s, it wasn’t particularly capable nor efficient on power. But the batteries were rechargeable, and I had two sets, so I often was able to keep the thing running for about half the stops we made.

The Dream

My little RC car had basic suspension, no diff (just an axle with a plastic gear on it, driven by the motor) and weak, 3-position steering. It could handle a little water – it was just a basic AM radio system and there wasn’t much to its electronics – but it was quite limited. Still, I had a blast with that thing. Many fond memories were made, driving up little gravel gullies, across obstacles, down sandy animal trails, and just generally around the place. I played in my own little imaginary world and it was great!

Back then, I didn’t know it, but what I longed for was a more scale experience. I had the imagination, but was limited by electronics of the day. Plastics manufacturing was still new-ish, basic radio technology was sketchy and there was a very small (but rapidly growing) toy and hobby market for RC cars.  Despite this, the scene was set.

The Mid 90s

We moved to Coffs Harbour, NSW in December 1988. It was notable because it started raining in early December and didn’t stop raining until mid-late January 1989. Back then, Coffs had a population of around 55,000 people (the greater Coffs area is pushing 180k people now).

There was a Tandy Electronics in town, and I have a vivid memory of my first trip in there with my dad. He needed a new CB radio. I was distracted by their hobby and toys section – there were so many different cars there! And trucks! They stocked a lot of Tamiya and I had no idea about any of it – but I knew right then that I wanted IN!

It Began With Tamiya

 It was 1993 and I bought my first hobby-grade car. I hadn’t realized that crawlers were even a thing – and much of the time, they weren’t anyway, as people were cutting and modifying various monster trucks and scale runners like the Clod Hopper and Bruiser, turning them into slow rock machines. So, I started my time in the hobby with a Tamiya Stadium Blitzer.

I had a great time with it, burned through many a NiCAD pack and sets of tires, both on- and off-road sets, until I sold that to my cousin later in the 90s. My brother had a monster truck with two speeds for a time, and that was cool. His first foray onto rocks ended up blowing its plastic transmission. (Oh, how times have changed!)

My First Crawler

If you know me from RC-TNT on YouTube, you may be surprised to learn that it wasn’t until 2011 that I experienced my first real rock crawler. It was a Losi MRC (or Mini Rock Crawler) and I had SUCH a great time with that thing! When I retired it, the car had a 1/10 80 Series Landcrusier body on it with a home-made winch, metal sliders, 1.9” wheels and 4.3” tires. I drove the wheels off that thing – several times, in fact!

In the years following, I dipped into the 1/24 scene (starting with the Losi Trail Trekker in 2013) and into 1/10 and bigger (starting with an old, well-used SCX10 Deadbolt I picked up second hand). A new Vaterra Ascender soon followed, and that puts us in about 2015.

Getting Into Scale

By now, the rot had truly set in. There was no turning back. I was busily building scale obstacle courses at home and meeting people near and far to trail drive with during weekends and even after work, into the night. I could not get enough of RC scale driving and models!

Of course, the problem with meeting other people to drive with is that you see what they’re up to in the hobby. You start to get more and more ideas about what you want to do with your rig/s. And once your mind starts spinning away on these things, there’s only one cure…

More and Bigger Crawlers, Please!

You can no-doubt see where things are heading at this point. By 2017 I had probably 50 lipo batteries and several balance chargers, and various 1/24, 1/18, 1/10 and 1/8 scale machines, some of which I’d built myself and some that were kit builds, and others that were used RTR machines from local buy/sell groups in the hobby.

I have a photo of my Trail Trekker in LC80 guise using its winch up the side of a rock from around 2013. It’s my first photo of a scale crawler showing how I was really trying to capture that feel of a real car. The more realistic, the better. I thought that meant better bodies, better tires and more accessories. To some extent, that was correct. But I was missing something.

Running Gear Matters

Sometime in 2017, Traxxas announced a bold new RC crawler with a previously unheard-of feature: remote locking differentials. In a 1/10 scale crawler. I came across a leaked photo of a shiny grey Defender on oversized tires and looking incredible. My jaw just about hit the floor, along with the rest of me, as I fell off my chair when I saw it! I think I called a couple of friends right then to tell them about it. Guys! Remote lockers! On a 1/10!?

When it was released, I bought one of the first Traxxas TRX4 models available in Australia. Man, I drove that thing for YEARS and its running gear was amazing. But over time, inevitably, I wanted more! More scale! More running gear! And more realism!

Just Like My ‘Real’ Car

A few years later, Boom Racing released the BRX01 (article here) and along with it, a transfer case option that included selectable 4WD/RWD. The car had full-time locked axles, but with overdrive gears in the transfer case, that was a sublime option for an already brilliant scale rig. (You can read about that one here, it’s still one of my favourite trail rigs today).

My full-size 80 series Landcruiser was RWD most of the time, with an open diff. Lock the hubs and you’d have 4WD high and low range. And then, if you wanted, you could install lockers so you could lock the front or the rear diffs, too. But no RC model ever had that level of detail. For some years now, I’ve been patiently waiting for such a thing to become a reality. Here’s where it gets good. Better than good!

Rlaarlo To The Rescue!

This brings us to 2025 and Rlaarlo has, unexpectedly, incredibly, delightfully, come through for we scale afficionados. My dream of the ultimate scale, trail crawler may have actually, finally, been fulfilled! It’s time to talk about the new Rlaarlo JK07 Pro – I have one of just five in the world at time of writing – and I’m SO excited to tell you about it!

There’s a video review and drive demo I’ve made for this car that you can find at the end of the article. It’s very worth watching. But here, I’m going to take you over some of the scale detail and goodies that I couldn’t include in the video, else I’d still be filming it right now. It’s a bit of a list!

Rlaarlo JK07 Pro Features

Ok, ready for this?

• 1/7 scale long wheelbase;
• full working light kit (with working LEDs on the front fenders and bendy mirrors!!);
• selectable RWD/4WD/FWD;
• high and low speed;
• selectable remote locking diffs;
• working windscreen wipers (3 speed settings!);
• huge brushless motor and servo;
• a longer wheelbase AND body than the Axial SCX6 (yes, really!);
• a GPS-measured top speed on 4S (yes, 4S!) of 29kph (or 18mph);
• working side awning;
• working rooftop camper with collapsible ladder;
• sand ladders and scale shovel;
• a full interior including a steering wheel that turns with the wheels; and,
• everything’s waterproof!

The whole thing weighs around 8.4kg (or 18.5lb), it looks fabulous, and the body comes off and goes on without body clips or other tools. It’s hinged and has gorgeous cable routing, and the entire machine is controlled by a DumboRC (Rlaarlo-branded) 10-ch radio transmitter.

I honestly and truly think the Rlaarlo JK07 Pro might be the most complete package of ANY RTR I’ve ever had. Really. If you’ve seen my toy shop of a studio, you’ll know that means of most cars on the market today.

What I Love

The previous section pretty much tells the story there. This is a durable car with very well conceived execution. All the plastics are nice and bendy for good durability. Components are thoughtfully placed. The car runs well and has a wonderfully scale body roll to it. Driving in just RWD and unlocked is a hoot! And I LOVE being able to slowly increase the car’s ability to match increasingly challenging terrain: RWD open diff, 4WD open diff, 4WD front/rear locked. So fun.

The battery tray is huge and fits a 7A 4S and a 10A 3S lipo – both are ideal for a car of this size. (Adapters here, if you buy either of these). Rlaarlo sells suitable batteries and many spare and upgrade parts for the JK07 as well.

The body is beautifully appointed and there’s a complete interior. There are many stickers included with the thing so you can customize it a bit, and the tires and foams are very good. I wouldn’t add more brass to it, I think the car is balanced just nicely out of the box. It’s quiet, power-efficient and just plan fun to drive.

Things Needing Improvement

There aren’t many things on this list, but a few items are in need of attention if you’re going to use this a lot. Firstly, the two rear tow hooks are plastic. They snap very easily if you tip the car on its bottom for cleaning or inspection. I wish these were either metal, hinged, or both. (My Rlaarlo contact has confirmed they’re looking to iterate on this in future). Also, the rear springs are too soft, even with full preload applied. I’d prefer slightly thicker diameter rear springs so the car can ride a bit more stably, especially on corners and steep ascents.

The steering wheel needs a bearing in the shaft so it doesn’t grind around when its servo tries to move it. And lastly, if you’re crawling with it beyond anything mild, the large wheels and mass of the vehicle overwhelm the 45kg brushless servo. I’m going to fit a 70kg brushless unit to mine. Lastly, the manual is a bit vague on features – more on that in a moment.

Wipers & Steering Wheel

These seemingly unrelated things had one factor in common: neither worked properly for me, but for different reasons.

Steering Wheel: the steering wheel was installed too tightly, so instead of rotating with its micro servo, it kinda ground left and right. Loosening the retention screw behind it fixed this. Simply a factory installation issue, no biggie.

Wipers: The wipers have a button on the radio (CH10) but the manual isn’t clear on how this works. A single press makes them wipe once. Holding it down for a few seconds turns them on. Pressing CH10 3x rapidly adjusts the wiping speed. A single press will turn them off.

My Overall Impression

This is not just Rlaarlo’s best car to date. The Rlaarlo JK07 Pro is one of the best RC trail rigs on the market, period. I’m completely serious. For me, at least, the complexity afforded by the various servos and design are such that I can have a true scale adventure with this thing. I can get stuck, get recovered, and even winch myself out if I wanted to install a winch on one of the two spare radio channels (both of which conveniently have a dial). It’s such a great car.

The Rlaarlo JK07 Pro won’t be for everyone. But for those among us who are still kids at heart, dreaming of scale adventure, this flagship model from Rlaarlo may be just the model you’ve been waiting for. I am so, so pleased with it. Oh yes.

Where To Buy

Rlaarlo sells direct from their website.

Also consider the JK07’s predecessor, the shorter-wheelbase Rlaarlo MK07.

See It in Action

I’ve got a detailed video of my experience with the Rlaarlo JK07 Pro below.

Also learn about other Rlaarlo vehicles I’ve examined here: https://rc-tnt.com/rlaarlo/

See my Rlaarlo videos here, on YouTube.

A note on affiliate links: we were provided with this car by the manufacturer for review purposes. The Rlaarlo and other seller links in the above article are affiliate links, which means we may be paid a small commission if you choose to click on them to make a purchase. As always, we make effort to ensure that no review is impacted by this – we still report on bugs and issues encountered during product testing, and our fixes or solutions if found. Thank you for reading and happy RC-ing!