TUG OF WAR! Lego Technic 42129 Mercedes-Benz Zetros Trial Truck vs 42099, 9398, 42114, 42099 6x6 4K!

Tug of war featuring the new Lego Technic 42129 Mercedes-Benz Zetros Trial Truck vs 42099, 42099 6x6, 9398 and the 42114!
This took longer than planned due to the 42129 drivetrain issues! Racing Brick did a video on the beam issue which comes loose and the 12 to 28 diff gears start to skip!
Not only that but the diff gear has quite a bit of play in it due to the locking differential so I had to place two 3 beams behind the differential to keep it from wobbling which also causes the gears to skip!
After that issue was completely fixed I noticed the driveshaft on the right hand side pops out of the differential gears so I had to make a 3.2 axle by cutting a 4 axle down!
After all that the drivetrain can take maximum torque without skipping at all as you’ll see in the video!
Please do not put your standard model 42129 through too much stress as you will break the diff gear teeth!
Anyway thanks for Watching and reading!
End Song - Elektronomia - Energy - nocopyrightsounds

[@jareddeckard2703]

After all those mods you did 42129 dominated! It's crazy to me though, that 3 hundred dollar lego set has drivetrain issues. Cool video, as always.

[@GazRsExtremeBrickMachines]

Hey Jared I totally agree! I almost feel it shouldn’t be in production until it’s fixed! It’s ok for me with so many spare parts but people will have this as a one off set. It certainly has some torque though! And thank you as always😀

[@jamesliu8357]

My 42129 just arrived. Thanks for explaining the issue & your solution. I am new to Lego and know nothing about moc. Your videos taught me a great deal bout it! Can’t wait to see how it compares & competes with my Liebherr & Volvo! Keep up the great work!

[@GazRsExtremeBrickMachines]

Oh great have fun with it! It’s a nice build and thank you again! Just please don’t do any tug of wars with it haha! I’ve just snapped the teeth on the rear diff cog even after the fixes but I put it through a lot of stress!

[@Athens69420]

The big bulldozer: Why inviting me without talking about me a single word Gazr: For you the test isn't required for the results. The big bulldozer: I see.

[@GazRsExtremeBrickMachines]

Haha I like it! It was used as a back drop 😂

[@coolverse3494]

Dude that is literally insane and op bro!!!!!wish I had em😅😅

[@gosmbricks9833]

The 42129 did better than I expected, I thought the 6x6 42099 mod would win easily... heck, I didn't even expect it to win against the 9398 becuz of the crazy torque difference

[@gosmbricks9833]

@@gustavbreitbartnielsenasf1124 I know, right? Maybe its the lockable central differiential for more traction and the added weight

[@GazRsExtremeBrickMachines]

it has so much torque and there’s a lot of weight over the front wheels so it grips on all 4 tyres really well. It’s not quite as strong as the 6x6 when pulling when the weight is pulled down like on the pull test but it’s so strong for a Lego model!

[@t.s.7588]

I wish 42129 zetros was equipped with 2XL instead of 2L engines.. would be really unstoppable

[@xtrdd]

4:06 WOW! TWO CAT!!

[@benensbricks5026]

The fact that the bulldozer didn't do any tug of wars XD and GazR's Extreme Brick Machines! PLZ give me a shoutout!

[@GazRsExtremeBrickMachines]

Hey Benen! You and your shoutouts lol

[@RichardHammond2]

I had no idea how much power that Zetros had🤯can’t wait for more tug of war

[@GazRsExtremeBrickMachines]

Hey Nick it has crazy torque the problem is lego haven’t made the drivetrain strong enough and they’ll be a lot of broken diff gears lol. It shouldn’t even be in production in my opinion!

[@jheeshin621]

I love your bulldozer-I wish I had enough pieces and talent to fix that!

[@GazRsExtremeBrickMachines]

Hey there thank you very much :)

[@Wasbever_14]

Yay! Another Tug of War!!

[@GazRsExtremeBrickMachines]

Hey hope you like, building new models now😀

[@eastonchristensen3601]

What!!! That thing is insane! I am completely blown away by how good that is, maybe all of them combined could take down the big bull dozer

[@carlbModels]

I don't think so! gotta add up to more than 11kg first. That's just to equal it. Then tractive force, so grip and power. Anything less than say 10kg will need way more grip just to shift it when parked ... those cross beams are like ground anchors. Even my model RC cars would be nervous! 👍🍺🇬🇧

[@GazRsExtremeBrickMachines]

They could now it’s in bits 😂 but those beams! Like Carl said! Not quite fair really

[@carlbModels]

@@GazRsExtremeBrickMachines The problem is you built an ultimate, and that's hard to beat. I love the optimism of the OP though, and sorry if I sounded critical in my reply - just I know how good the dozer is (was) and thwt even as a dead weight it wouldn't be shifted easy! 👍😀

[@eastonchristensen3601]

@@carlbModels yeah, you make really good points!

[@GazRsExtremeBrickMachines]

Hey Carl that’s cool! it really is those beams on the tracks! Even on the carpet they dig in! When I went on holiday I left it in bedroom and you can still see the indentations on the carpet 3 weeks after lol I’m intrigued to see how much the next vehicle can pull given it will use tyres and not so short gearing! There could be a few motors though😮😀

[@t.s.7588]

I loaded 42129 deck with a 9 (nine!) kilos load and runs on as if nothing happened. Amazing! 42129 and 42080 are the coolest sets in my collection

[@CHProject76]

Wow, many people didn't think the Zetros was great considering its supposed to be a trial truck, but this proves its true capabilities! Although I think it has to be said: I don't think it even has a chance against the Bulldozer. We've all seen what that monster is capable of!

[@GazRsExtremeBrickMachines]

Haha I used it as a background prop here 😂 It’s a nice build and the drivetrain is super torquey! I just wish it was built to the scale of the bigger tyres as it’s not a cheap set!😮

[@CHProject76]

@@GazRsExtremeBrickMachines yeah, I agree on that one. I believe the first leaked image of the set showed it on the same tires as 42099 in a 6x6 configuration. I personally think that would have been better, but as proven, the final model is pretty good at what it does!

[@GazRsExtremeBrickMachines]

Yeah that would have been a beast! It’s a nice build and the locking diffs are cool! As I only ever usually buy second hand lego this did seem really expensive to me but when you compare it to the new price of the 42099 originally it’s not too bad

[@Hasteonconsole]

Love the big thing

[@GazRsExtremeBrickMachines]

Thanks again 😀

[@CY5588]

One thing to say is that the vehicles with seperated drivetrain like 9398 or 42099 do not work well as the rear wheels are suffering and the front wheels slip. If you connect the drivetrain like the trail truck then the motors will spend their power on all wheels and not slip front wheels.

[@GazRsExtremeBrickMachines]

So true! Thanks for the comment I appreciate it :)

[@jjsanimations]

Guess what I'm about to say... EPIC AS ALWAYS

[@GazRsExtremeBrickMachines]

Haha Cheers JJ! Appreciate it as always! 😀

[@Fish-Finger]

great video. its amazing that the 42129 beat most of them. was it fun building the new set.

[@GazRsExtremeBrickMachines]

Hey there thank you 😀 It certainly has a lot of torque! Well it was my first new Lego set I’ve built out of the box so it was nice having the parts all in numbered bags!! I did enjoy most of it but I made a silly mistake which was to bypass the clutches and later realising they were for the locking diff and not the drivetrain lol. So squeezing them back in was a challenge but other than that it’s a nice set(a little expensive though!)

[@Fish-Finger]

@@GazRsExtremeBrickMachines lol. looks like you had a-lot of fun trying to get that maximum torque. and it is way to expensive, maybe 240 euro would be better than 300. lego has made the PU motors way to expensive and over priced. thanks for getting back to me

[@GazRsExtremeBrickMachines]

No probs and I totally agree!

[@chrissbrick4989]

It stood a pretty decent chance for a Lego set but the gears are really having it!

[@GazRsExtremeBrickMachines]

Indeed Chris! If they don’t modify the app and lower the torque this set will destroy many differentials! I like the build but there’s a big weakness in the drivetrain!

[@nothingbuteverything2041]

That was a great round.

[@GazRsExtremeBrickMachines]

Hey there cheers 😀

[@donnachaslegocreations]

It did really well against the 6x6. 2 motors vs 3 motors. It must all be in the smaller wheels

[@GazRsExtremeBrickMachines]

Yeah also the weight distribution is great as the front and rears have a lot of weight on them. It’s not as strong as the 6x6 when it pulls the bricks as the weight pulls down on its wheels giving the 6x6 chance to use all its power but for a Lego model it’s very strong! Too strong!

[@donnachaslegocreations]

@@GazRsExtremeBrickMachines ☺

[@jackieglade]

amazing!

[@GazRsExtremeBrickMachines]

hey hey thank you so much!

[@UltimateLegoProductions123]

Wow I didnt know 42129 was that powerful!!!

[@GazRsExtremeBrickMachines]

It’s ridiculous for a standard model but too strong for its drivetrain! Differential gears will be in high demand lol 😀

[@tuankiettran8811]

Maybe? This includes a remote controlled gear lock. (unbrickme reviewed this set).

[@MAL-Collector]

The plastic torture test. 42129 is all destroyed now 😆 I just bought that set today on sale 125 euros.

[@Sharky_0456]

you should mod the zetros. that would be an absolute monster

[@michaelrogalski]

42099 6x6 rules!!! Hi is the best. I have only 4x4 but now I'm waiting for 42110. U should buy it and motorized it with 42099 hub and motors.

[@GazRsExtremeBrickMachines]

Hey thanks I do love the 6x6 it’s stronger in pure strength still! That’s a beautiful set one day I do plan on getting that, enjoy it😀

[@warrenjamesmaronda3865]

Like the music

[@luisantoniocamacho3795]

Awesome video

[@GazRsExtremeBrickMachines]

Hey there thank you I appreciate it😀

[@glenthegreat2962]

I like it more when you do it outside! 😏

[@GazRsExtremeBrickMachines]

Hey thank you Glen, it’s a bit tricky with UK weather though! They were all caught out in a rain storm lol

[@Bricksfaction]

Trial truck wins bec of smaller tires (high torque) and heavier than 42099. Great comparison thank u mate

[@GazRsExtremeBrickMachines]

Hey there I hope you’re well! And thank you very much! It’s a strong model!

[@tuankiettran8811]

Another error from my previous question: the original drivetrain is 12.6:1. in my example rotating 1 time says 1, 2, 3... and the output turns 1. In this original drivetrain is 24t -> center diff is 1:1 to 12t -> New differentials is 2.333:1 to the planetary hubs from my previous comments is 5.4:1 reduction, total gear reduction is 12.6:1 reduction. If I add 2 c+ l motors and will get more then 15 ungeared pf xls (the torque is 111.006 N.cm [recorded by Philo] ) . Thanks for your error and stay home.

[@GazRsExtremeBrickMachines]

You are quite right I need to alter the 42099 as well! I will do it for future videos.

[@tuankiettran8811]

I'm sorry, I like my infos and they are wrong!

[@ramsau543lol6]

Cool cool cool 😄😃😃😎

[@GazRsExtremeBrickMachines]

Thank you thank you thank you 😀😀😀

[@ramsau543lol6]

Hi go on a vacation i cant look your videos sorry😔😃

[@GazRsExtremeBrickMachines]

Lucky you! 😀

[@ramsau543lol6]

OK😃😃😃😃😃

[@Hasteonconsole]

You should add this to the “big dozer v everything else”

[@GazRsExtremeBrickMachines]

Yeah I should have done that but I broke the dozer up yesterday, new strong model on its way😀

[@Hasteonconsole]

@@GazRsExtremeBrickMachines oh kk, cool

[@origamakoie6558]

The trial truck is surprisingly strong!

[@GazRsExtremeBrickMachines]

Hey there! Yeah it has insane torque for a Lego model but that drivetrain will break so many differentials! They could probably programme the app to reduce torque when it’s under heavy load to not break the diff!

[@origamakoie6558]

@@GazRsExtremeBrickMachines We need official lego parts that are stronger than the normal plastic pieces!

[@GazRsExtremeBrickMachines]

A few parts would help! The problem here though is the design, when I built the rear unit I knew full well it wouldn’t handle the power as I built a similar cog set up in that weird 4x4 crawler with swerve steer and you have to strengthen a lot. The surprising thing is lego built a model with so much torque by pairing those L motors up like I do in my models! Usually they have one motor on the front wheels and one on the back which effectively half’s torque when only 2 wheels need it at times.

[@doorwaytocreation917]

Can't believe the zetros is winning! Maybe it would actually off-road with more gearing down, and bigger wheels?

[@GazRsExtremeBrickMachines]

Yeah personally I think it should have been built to the scale of the bigger wheels as it’s quite an expensive set! There’s so much torque with this model I think the bigger tyres would naturally make it almost twice as fast whilst still having plenty of torque! 😀

[@Hasteonconsole]

Cool

[@GazRsExtremeBrickMachines]

Hey cheers 😀

[@sitsia3808]

3:15 *_kitty in background_*

[@whitemaus3498]

Can you do mini video about 42099 6x6? Привет!

[@GazRsExtremeBrickMachines]

I will try this week😀

[@abracadaverfox]

A great competition! Doesn't this 42099 one come with the new motors and "control+" thing? I saw it struggling with e.g. offroading, Have you by chance compared the new XL motor to old one?

[@GazRsExtremeBrickMachines]

Hey there thank you! I’ve not had chance to compare the older ones and yes this users the control+ motors hubs! Weirdly the new L motors are slightly stronger than the new XL(it’s weird) When you do both gear swaps the 42099 is pretty great off roading! I’ve had it crawling over the worst soil possible and it does really well! The problem is it’s a bit rear weight heavy so can tip backwards when climbing 😀

[@tyleroneale1622]

I think the bulldozer would be great in the snow. maybe as a plow for sets that are bad in the snow.

[@vincenzomalafronte2504]

New car top

[@GazRsExtremeBrickMachines]

Hey there 😀

[@Fish-Finger]

hay, where do you get your lego sets do you get them new or used and for how much? its just i would love to get the Liebherr set but its so expensive for me. so if you get your sets cheaper some where i would like to know. but if you would like to keep it to your self that's ok to i guess. thanks

[@GazRsExtremeBrickMachines]

Hey there! I buy all my sets second hand off EBay other than this latest truck(only for the channel and future videos) I bought my last Liebherr set for £175 but you have to be patient and wait for the odd one to pop up! There was one last week for £160 but it was snapped up before I had chance to press buy lol. I know they’re not cheap but in the Liebherrs case the 7 motors and hubs are worth more than the cost I’m paying for the whole set! You’re effectively buying money if you wanted to sell parts back! I did a quick estimate and Liebherr sets in parts are worth over 500 if you were to sell items back individually. You can also get the 42099 for £90 The 4 tyres,4 reduction hubs,3 motors and hub are worth £120 and then you have all the other bits😀

[@Fish-Finger]

@@GazRsExtremeBrickMachines thank you for getting back to me. when you buy the sets off EBAY is everything in good condition. are the motors in good condition and do they work well? or are you taking a chance buying them second hand off ebay that they wont be damaged or broken. and thanks again for getting back to me. it is really help full.

[@GazRsExtremeBrickMachines]

Hey no problem at all! So far everything has been perfect! I think I’ve bought 13 sets now as well, not one issue! Luckily most people who buy these seem to be enthusiasts, maybe just check the wording of adverts to be sure though! I’ve found the powered up hubs motors are so durable there’s little worry there! I’d worry if you were buying off me though as I’ve given them torture!! Lol 😀

[@Fish-Finger]

@@GazRsExtremeBrickMachines LOL! ye i think i will steer clear from buying your PU motors. THANK YOU

[@clintrennie9815]

how do you turn off the mother in the mersadez 4x4

[@epic_malware_YT]

are you gonna do the tug of giant wars pls i want it

[@GazRsExtremeBrickMachines]

Hey Crazy I need to buy a bit more lego but I do hope I can do giant vs giant later in the year!😀

[@geddamgang9324]

Can you show me much weight can your Lego toys pull?

[@GazRsExtremeBrickMachines]

Hi I did a pull test awhile ago featuring the big bulldozer. Moving dead weight(bricks)

[@geddamgang9324]

I just want to see how much weight your babies pulling....

[@obj268tcgamer6]

i would like to mod my zetros can i havethe instructions

[@brainlessbrickbuilding7660]

Even though u modded the mercedes its really strong :)

[@GazRsExtremeBrickMachines]

It’s too strong for the standard drivetrain! I think they’ll have to update Lego’s app to lower the torque when under stress! It’s a nice build 😀

[@brainlessbrickbuilding7660]

@@GazRsExtremeBrickMachines yes but someone already made a mod to the rear axle so nothing slips

[@GazRsExtremeBrickMachines]

I’ve seen that but at the end it slips lol. I’ve done 3 fixes for this, I’ve put it in the description! The one I’ve seen(racing bricks) does not cure it! You have to do that aswell as keeping the differential gear from moving about otherwise when it does slip it will shatter your diff gears teeth(I know because mine did! Which is why I did the other fixes) It can’t slip now though😀

[@kingofherdaz]

Do you swap batteries between runs? (Also you only put the dinging sound the first time)

[@GazRsExtremeBrickMachines]

Doh! Hey there I swapped the batteries after it beat the Volvo as I did a few runs to film that one! These models do last a really long time though with the batteries I use (2300mah) Also you’ve given me a fun idea! I may do a poll or question… to see how long these can drive on a treadmill! 😀

[@tuankiettran8811]

It sounds like rechargeable batteries. I guess will be alkaline vs. ni-zin vs li-ion I think will be test that later.

[@carlbModels]

wow, I love the dozer but this to me was more exciting to view. Maybe the dozer has got so good that nothing can beat it. What mods did you do to the new truck? - seems pretty powerful and grippy 👍🍺 ps I worked out that if I add a spring loaded swing arm with spikes to back of the Humvee, it won't be pulled backwards by anyone. Dunno if this is in the spirit of the competition! I think I'd prefer to compete against your wheeled creations. What would you put up against a 6.5kg RC car?! 😎

[@GazRsExtremeBrickMachines]

Haha that sounds fair… The poor Dozers in bits now and you’ll see what I have planned for your RC car in a week hopefully! I’m intrigued to see how much torture the drivetrain will handle! The new truck shouldn’t be in production if I’m honest! It has too much torque for the drivetrain design and will shred diff gears! I did one common known fix but that doesn’t cure it, in-fact it just makes it more likely to destroy the diff unless you do the next fix. I had to add some beams to keep the differential stable and then make my own 3.2 axles as they pop out the diff as well. They’ve done a 90 degree 12 tooth to diff gear join which has to be super strong but due to the locking diff setup it can’t be enclosed in the usual 7x5 rectangle beam piece. With those little tyres and 12:1 ratio with two L motors it has serious torque

[@carlbModels]

@@GazRsExtremeBrickMachines you need to do the diff closer to the motors, and then gear down the outputs like a mega portal.... 😎. Am intrigued by the idea of a wheeled monster. I ran out of strength in the axles, needs smaller diameter tyres bit more of them. Kind of makes tracks the Ultimate choice realty.

[@Enderkruemel]

I melted one axle, Broke the Same axle after it fused togeter, and Broke all 3 gears (i was surprised,that they Broke in 3parts, Not only the teeth Broke. 2 grey ones and a yellowish one. All Broke the Same way) in an old 4 wide Differential whith a Single buggymotor. the only thing i did was that i removed the original polyfuse from the Batteriebox,becourse it cuts out, if the Motor is at 70% load. I also Used the old Powerfunctions v2 resiver (replaced plug, the wire Broke after 4 years of use)

[@GazRsExtremeBrickMachines]

Hey nice effort there! Lol. I’ve shattered one of the older cogs but not the newer style! The build was obviously not short of torque!

[@Enderkruemel]

@@GazRsExtremeBrickMachines yes it had a lot of Torque, it was 8 wheels of the Orange/ Black Monstertruck, and also had a 4 speed gearbox. But i dont have any pictures or Videos of it Anymore. But it was a challenge togeter whith my friend, about witch of our verhicles can go up the steepest angle. We had bouth the Same Parts. Only the Colors were different...

[@GazRsExtremeBrickMachines]

Hey nice what angle did you manage?

[@Enderkruemel]

@@GazRsExtremeBrickMachines I think it was 60*

[@GazRsExtremeBrickMachines]

Hey nice going! This new Mercedes truck is pretty good uphill for a standard model with the weight being at the front and fairly low! 60 is steep!

[@jacobjoshuacannon9657]

awesome! where do you get all those lego motors?

[@keezus2182]

Woah

[@GazRsExtremeBrickMachines]

hey teddy! 😀

[@KayTheKaiju]

make a tutorial video again plz

[@GazRsExtremeBrickMachines]

This week hopefully 😀

[@KayTheKaiju]

@@GazRsExtremeBrickMachines ok

[@thatelectropig8678]

Man where’s the tonk it would have won this whole thing I know it

[@GazRsExtremeBrickMachines]

Haha it will return when you least expect it! Possibly bigger than before… 😀

[@thatelectropig8678]

@@GazRsExtremeBrickMachines woah, Woah WOAH

[@thelegotechnicstudio2830]

Can you upgrade mercedes please

[@GazRsExtremeBrickMachines]

I will definitely do in time! 😀

[@majapahitempirerevengemode2475]

Later vs the boss

[@kanarienvogelfisch]

That's insane probably the worst lego technic set ever for the normal people dominates in a test against your stuff that's modified as hell but what do you think abaut the zetros is it worth buying

[@GazRsExtremeBrickMachines]

It’s hard to say as I’ve only ever bought second hand off eBay so to me buying this new seems extremely overpriced for what it is! I guess if you compare against other new models you could justify it but I bought a 42100 Liebherr for £175 the other day whilst this cost me £265! Which is hard to justify! Lol It’s a very strong model torque wise! Ridiculous for a Lego model but the standard drivetrain cannot handle it which is poor from Lego. The 6x6 is still stronger in pure strength but this had a little bit more weight 😀

[@kanarienvogelfisch]

Actually I thought it was because of the center of gravity that the zetros won it is so low with these micro tires that it can get the power down much better so would be nice to switch some tires so that it is at least in that regard fair

[@GazRsExtremeBrickMachines]

Yeah definitely that as well! Also the front has a lot of weight over those tyres as well! Usually the front loses traction on the others! Especially the 42099s which are rear heavy! It will be interesting on lower grip surfaces! I think those tyres will help as more weight on a smaller area? 😀

[@kanarienvogelfisch]

Exactly that would make it also fairisch but it still would be interesting how these things would perform on same tires so would be nice to at least run some of them that way just as a proof of concept

[@oscarpezzoli4597]

very good we are all dumb people loving lego?

[@GazRsExtremeBrickMachines]

Definitely not we just know how to have fun 😀

[@monikaczarska6475]

first of hello second when you gonna make discord?

[@GazRsExtremeBrickMachines]

Hey Pawel! I really don’t know anything about that! Lol

[@monikaczarska6475]

@@GazRsExtremeBrickMachines watch youtube how to discord man

[@kevinvalladares1997]

Mercedes is stronger then 6x6 it’s that yo ur not good at it

[@lknmmn]

zzzzzzzzzzzzzzzzzzzzzzzzzz

[@xtrdd]

3:14 WOW! CAT!

[@GazRsExtremeBrickMachines]

Meoooww! They’re always lurking somewhere keeping an eye on things! 😀

[@coolverse3494]

Dude that is literally insane and op bro!!!!!wish I had em😅😅

[@GazRsExtremeBrickMachines]

Hey hey! Thanks as ever 😀😀

[@coolverse3494]

🙃🙃🙃