วีดีโอ

I think something is wrong with your installation. It looks like the linkage between the 2 wheels is incorrectly installed or the screws you used are not the correct ones. If the linkage screw does not close fit the lever between the wheels than there is your problem. In some versions there is a brass washer that is there to fill the gap.

Hey my new friend, one trick is to shim your swing arms to remove the slop from them!

So it's no point buying from AliExpress?

Awesome video bro, i jave been looking for vids like this but the algorithms dont suggest this video. Ever applied some SEO?👍

some nylon washers take almost all the play out

entre el 1409 y el 14010 con cual te quedabas si tuvieras que elegir uno? dicen que el 09 vuelca menos y es mas controlable.. no se... y por ese rango de precio de 150euros elegias uno de esos o elegirias otro?

Great info, thank you!

Did the slop increase with time or was it like that out of the box? Are the diffs durable?

I bought the same model from 2 different sellers, both have the same steering problem. :/ Did you guys get it solved with the product on the link¿? Thanks!

I would like to see a way to slow my 14209 down make it into more of a trail crawler than an acrobat lol .

If you put a Shim behind the inner ball bearing on the steering knuckle, it will take the rest of that play. 😊

The esc on mine recognized the 3s and beeped 3 times instead of 2. I ran a 2000mah 25c and it worked a little wonkey. So I changed out the motor with a higher kv motor, stock everything else and ran it this morning. No cog, no braking, no delay, it screams down the street. 30mph maybe more. Hope I don't ruin it but man it's a fast little fart now.

I'm having a problem putting it together. Was only turning right😢

Yes this MJX is a lot of problem on steering I just get mine last week ang it’s hard to control is going anywhere. I just ordered upgrade servo hopefully this issue will fixe.

Serious rc uk carry these parts. I have ordered them thanks for sharing.

I have the same problem and I don't know how to fix it

The drive shaft on mine is missing a bearing on the spur gear so it eats pinion gears. Its almost like the cobbled my car together with different parts from different cars. None of them match the specs in the books or show the missing bearing. Every time I but an rc it seems I get the worst of the worst. Everyone else raves about how good these are and how they need little matinence and parts but mine is just junk. Plastics break, gears strip out. Almost done with hbx in general

These trucks rip apart on 3s and break diffs and gears…. Which is a dedicated 3s truck which can actually run 3s long term….

Easy to mount??

What's the largest battery you can use once this is done? I ended up 3d printing a tray that sits on top of the servo in its original place and it takes an ovonic air 2s 2200 perfectly. Not sure exactly how long it goes on for but at least 40 plus mins.

Great vid many thanks. I was faced with this very dilemma of which 1st RC car to get for me and my young kids (7 and 3). Long story short i went with the HBX mainly down to price. The cheapest I've seen the HBX is £62.50 from banggood (screenshot on fb forum if you want proof). The MJX is typically £80ish minimum. Add to that the necessary mods to get rid of throttle lag and upgrade the gears/ diffs and the MJX is near double the money. Finally, for me its great with very young kids that you can dial the speed right down at any point from 40% to 100% power. The MJX is 70% or 100% only.

Man this video was excellent and full of very useful information. Thank-you!

My car came prefitted with a similar system. No slop at all. Maybe they revised it.

Bought one, crashed it. All steering parts broken. Spent several months trying to get metal replacement parts, had to cancel three different orders from fake sellers until I got the parts. Installed them, they rub and don't work properly. FUCKING RIPOFF PRODUCT. Save your money and buy an Arrma Vorteks. You'll be able to find parts, support and the car itself is much easier to work on than these shitboxes.

I ran mine on 3s 1300mah 20c batteries many times at full speed with no braking. I think the 120c is too high...try a 3s with no more than 25c.

I haven’t been able to run it yet (shoulder surgery) but I snagged a16889a pro off of AliExpress for $77 shipped 🍻

Did you figure out why your one wheel is more wobbly than the other? I had the same issue. One of the sticks where you put the upgrade part on was loose from factory because of a missing washer. Its so much better after tighten it.

Interesting vid. Thanks for testing it out!

see that you have the hbx 16890 which suffera from the same slack. Mine was even worse because from factory one of the screws of the steering posts was wrong! Thinner and without the metal neck on top which made it have a terrible slack amd right wheel wooble imp9ssible to keep straight line without permanent corrections. Ordered a metal kit but honestly only the right screw corrected it

Cool video! I think you answered a lot of questions on this 3s topic! Here's sub 21 for you!! Cheers mate!

After a crash my 14210 is as bad as that one how can I fix it without buying new parts? Mine wasn't bad at all before this crash

honestly too much work. I simply bought 1600mah cheap 2s 30c batteries that are thicker than original but still mange to put them on the same compartment with the help of velcro and thats it. 40 minutes of non stop bashing.

honestly too much work. I simply bought 1600mah cheap 2s 30c batteries that are thicker than original but still mange to put them on the same compartment with the help of velcro and thats it. 40 minutes of non stop bashing.

What wheels are they ? The standard ones are the only thing I find that lets it down

Looks like yours is a bit different, bur Derby City RC ran it on 3S, but it also was like it was underpowered or on the brakes all the time.

On my son's MJX 16208 the rear bevel gear came loose and as a result of that it ran out of true and ate chunks out of the main differential gear. I do not know why the bevel gear came loose from the spur gear at the rear end of the driveshaft?

Thank you for the info, I was wondering how I was going to relocate the servo on the left, so the info about the MJX parts has helped me a lot. I will also order the MJX servo bracket to see if I can make it work on my HBX 16889A Pro to keep everything in place. I am thinking of taking it a bit further too, with the MJX brushless ESC and the Dumbo X6FG receiver to make it both 2S and 3S capable.

You can run 3s on stock esc, but back the speed down to 1/4 or 1/3 and it should work fine without braking all the time - works fine for me and the battery lasts about 45 - 50 mins! Mine is about 2 months old👍

Mine is not as bad as that, so i am concerned that this gets worse with use?

Can you post a like to those tires??

Terrible slop on mine as well I got the same kit coming will let you know how it goes.

Hi am confused do you know exactly what is the cut off voltage for these battery is I don't think it actually is 2s 8.4v cutoff I think 7.4v cut off not sure tho why don't they even say these in manual I dunno I not using cheap chappy charger came with it

The link you provided is incomplete (404 page not found), Could you please provide updated link. My MJX suffers from the same issue!

Thanks, I ordered one too for my MJX buggy

I just fitted one of these today too haha.. I have some new metal steering arms too,they take a little more slack out and make it acceptable.