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Flyhal 1/10 Scale 4WD Brushless RC Monster Truck Review

1/3/2022

8 Comments

 
The Flyhal 1/10 scale brushless RC monster truck is an RC car that is lacking something of a clear name but it is fairly clear this a thinly rebranded XLF X03a RC Truggy with a number of upgrades that has made it stronger. If you are unfamiliar with this model it is a lightweight ready to run 4wd 1/10 scale truck-buggy (truggy) with brushless power train and large monster truck wheels well suited to off road. Read on for a full review including my honest opinion of the truck after running it for a number of weeks
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It's become clear to me the the 'Flyhal' brand is unique to the Chinese retailer Banggood and appears to be a shadow brand. This means that they are not a manufacture but a thinly disguised house brand that may be used to sell large job lots of RC models at a discount or as an exclusive bundle. For example it is clear that the Flyhal FC650 was a rebranded XLF F16 (brushless) and the Flyhal FC600 is a HBX 16890a pro. This particular Flyhal model is also made by XLF, in this case the X03a brushless 4WD truggy. As I have not reviewed the XLF F03a I will not compare to that model and so please ignore a direct comparison because from what I can see, a number of components seem to have been upgraded.
What is included with the Kit?
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  • The Brushless 4WD truggy (more detail on spec below)
  • 2.4GHz trigger style remote
  • Truggy style body and wing
  • Monster truck style body and wing
  • 2 x 2s (7.4v) 1500mah batteries
  • USB battery charger
  • Spare steering rack (random!!)
A Closer Look at the car
Power Train
The motor is a 2847 3700kv model according to the stamp on the motor which is probably a good sized motor for this car - it is on the smaller side for a 1/10 scale and it is fairly light. I'd expect this to give good but not crazy speed and be fairly efficient at doing so. The brushless ESC current rating isn't stated but my guess is 30-40a. It does not include a fan which is typical of ESCs this size. It includes an integrated receiver as well which is pretty much the norm for ready to run cars in this price bracket.
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Motor is a brushless 2847 3700kv unit
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ESC peak current is unknown but I'd guess it would be around the 30A mark. This is an all in one unit that includes the receiver.
Drivetrain
Drive train is fairly solid, as you can see the metal x7 0.xmod pinion drives a metal spur gear and 4wd prop shaft that supplied power to metal diffs front and rear. Every moving part is supported by ball bearings. This setup is typical for brushless cars and looking at the setup I don't see any obvious weak points. Further out the diff cups look pretty beefy with metal dogbones in the rear and CVDs in the front, again fairly typical. This finishes off with m4 outdrives with pins driving regular plastic 12mm hexes meaning you should have plenty of options for wheels and tyres if you wish to change.
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All metal gearing from the pinion right though. These are decent quality gears.
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A closer look at the additional gears used that allow the 4wd propshaft to sit lower in the chassis. Check out the chunky floating propshaft drive cup at the bottom of the picture.
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Pinion gear pitch is M0.7 which is the same as the WL toys 144001 - reasonable uncommon. This is a 12t pinion and there are no stock mounting holes to allow you to go bigger (or smaller)
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Diff drive cups are oversized and should be durable
Radio and electronics
As mentioned the ESC also houses the receiver which is common in smaller scale RTR RC cars. This means you are stuck with the stock transmitter unless you upgrade the ESC and receiver as well. The transmitter is very basic, running 2.4ghz digital with control only for steering trim - a bare minimum. Sadly there is no dual rate control to limit maximum throttle. The servo is a 3 wire unit which is good news compared with the 5 wire units we usually find in RTR cars - you won't need to change if you swap out the radio gear, alternatively upgrades are easily available.
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Stock transmitter
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Steering servo (3 wire control)
Suspension
Time to address the elephant in the room - friction shocks. Yuck! Rather than being dampened with a viscous fluid, these have no bound or rebound control which usually helps with traction on rough surfaces and lessens the chance of chassis slapping on large jumps. Disappointing but one of the ways this manufacturer has helps keep costs down. It's a shame because the rest of the suspension is pretty good, namely the double a-arms front and rear which are very strong for this kind of application. The only adjustability is for front toe which I think is well suited to an off-road style basher car - keep it simple. 
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Air shocks
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Adjustable tie rods for steering only
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These Wltoys 124019 1/12 RC Car Spare Oil Filled Rear Shock Absorbers would be a good option to replace the existing air shocks. Length is 80mm which is the same as to stock friction shocks on the Flyhal.
Wheels and body
My kit didn't include the X04a style body which is a shame, just the truggy style and wing. The body is pre-painted and includes basic details. Unlike recent cars from HBX and WL toys these have no LED lighting. 

Wheels are classic XLF - big diameter and offset and a tyre set with a very agressive tread pattern. The tyre compound is fairly hard meaning they don't have foam inners. They are light and appear to be well suited to this car.
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Truggy look
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Biiiig wheels (115mm diameter)
Chassis
The chassis itself is plastic but is well fortified by metal parts in a number of key places.
  • Front chassis which was exposed as a weakspot in the WL toys 104009
  • Front and rear hub carriers
  • Steering Rack
Looks pretty good in general but the performance review will tell us for sure.
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The front of the chassis is strengthened with a metal plate - something the WL toys 104009 could have done with
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Hard to see here but the steering drag link is metal
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Front hub carrier is metal which is a good idea especially with these big wheels
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Rear hub carriers are also metal. Not so important but I guess it matches!
Review of the Truck
Performance Review
I measured the top speed of this truck offroad at 37km/h. In better conditions I'd expect this to do 40km/h or a bit over quite easily this is a good speed for a truck this size, practically identical to the 1/12 scale HBX 901a and 1/16 Scale 16889a pro. Yes, this is a larger scale car but I do feel this is a decent speed given this is a bit more capable in tougher conditions given the large wheels. Acceleration is very good - in areas of decent traction (like short grass), this will pop a wheelie quite easily. Overall I'm happy with the choice of motor and gearing which allows it to perform this way, I feel it is well matched to this car in a similar way the HBX matches theirs (using the excellent 901a, 16886 and 16889a pro as examples. 
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Handling
First up this car uses friction shocks which are inferior to oil filled shocks as they offer no dampening and thereby limit there ability to retain good traction on bumpy surfaces and land jumps. On smaller cars like the WL Toys 284131 and even SG1603/4 this is fine but on larger scale cars like this it suffers. At least the spring rate is ok but it would benefit from oil dampers. 

Traction is funny with these massive wheels. On concrete/tarmac it is pretty bad and on heavy acceleration you tend to switch ends pretty easily - spin outs being common. On grass and offroad however they are really good, their larger size and aggressive tread in hard compound work really well. I would have like there to have been a bit better balance but it's not common that we see a tyre perform well both on-road and off (except for maybe the Remo P6973 tyres).
Heat build up and battery life
Runtime from fully charged to low voltage cut off is around 10-15 minutes. It is worth noting that it has a fairly aggressive thermal protection circuit in the ESC which is a good safety feature but something to be aware of if you drive hard for a decent period of time. More detail in my little video summary to the right.
Durability
So far it has held up pretty well. I've been running this fairly regularly for just under 2 months now and I've not had any damage. I'm not into large jump and skateparks but there are other reviewers that cover that and I don't find that kind of driving enjoyable. With that said I do crash, and roll, and smack into objects but so far it seems OK. In an otherwise plastic car the metal pieces they have used as noted earlier in the review appear to be doing their job well.
Conclusion and recommendation
In summary this is a pretty good but not great car however the price it is being offered at makes it better - is fairly cost competitive for a brushless 4WD monster truck. Speaking of brushless it has what I consider to be a well sorted power system - a lowish kv 2847 motor and conservative set of gearing running large wheels. This makes for a decent top speed of around 40km/h, decent acceleration and a respectable run time of 10-15 minutes. The main downside is he handling, characterised by friction shocks instead of oil that lack dampening and large tyres that are well suited to offroad but not on.

I can't comment on long term durability since I've been running for 2 months only but it seems to be ok so far with well considered use of metal strengthening. When considering this car I'd also recommend looking at the HBX 901a, WL Toys 144009 and the WL Toys 104010. None of these cars is perfect (although the 901a is close) but you can check these out to see what you want to focus on and where you are willing to compromise.
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The Flyhal 1/10 brushless 4WD truck is exclusive to Banggood where I ordered mine from. Try code BG5RCtoy for a 5% discount.
If you are looking for a discount on this car, I will post any coupon codes or flash sales for it over here on my coupons and discounts page. Remember buying from any of these links supports my page without any cost to you and is appreciated especially since I don't ask for money via patreon and the like. If you want to get involved in this discussion, feel free to join the QuadifyRC Facebook Group Here or like my page below.
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8 Comments
Rcfreak
2/3/2022 03:58:52 am

What's up with banggood stock levels at the moment. Almost everything is out of stock and doesn't get replenished.

Reply
QuadifyRC
9/3/2022 05:19:33 pm

Yes, pretty frustrating. I'll see what I can find out

Reply
Rcfreak
9/3/2022 07:29:32 pm

Thanks quad.

Rick Wallen
11/4/2022 07:26:57 am

I broke my controller. Where can I get a replacement ?

Reply
QuadifyRC
11/4/2022 12:30:33 pm

Here is the replacement: https://bit.ly/3ju4SMQ
- same as the XLF X03a

Reply
Mike
25/9/2022 09:14:02 pm

Would be good if you had a few side by side comparisons to the 901a to allow you to see the different size of the truck, wheel size and ground clearance differences.

Reply
QuadifyRC
29/9/2022 11:16:00 am

That's a great point, I've done this here and there but I will get back to it more consistently.

Reply
Karkadam
5/12/2022 09:10:05 pm

You have a link for the heat sink for the motor? I want to add one also.

And I also want to add led lights. Do you know which JST Cable I need? 1.5?

Reply



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