This is The Swiss Army Knife of Cars

[@Joel-Haver]

This is the most insaneo go kart video of all time. And you guys did it in style no less.

[@Brettcrompton09]

Insano style😩

[@ingrid7830]

😂

[@morkovija]

Guys its spreading!Halp!!!!=)

[@longdutchprod]

Absolutely insaneo style

[@kevinperron5767]

Insaneo

[@drivesr20det]

Nerd fact: Straight cut gears themselves are weaker than helical gears! Racecars use straight cut gears because they don't put axial forces on the transmission housing, which allows the housings to be significantly lighter, or just take way more power, whichever you're going for.

[@dimitritzer5028]

Yup, was suspicious myself when he said that (still love the rest of the content tho :P)

[@Watchmedome3017]

Oh that’s dope.

[@yongling9825]

So, which motorsporting discipline(s) are helical gears preferred?

[@merrickcummings1561]

Herringbone gear is the strongest.

[@thor06m]

I was scrolling down here for this...Thank you!!

[@BAMaxwell]

I absolutely love how B2B has turned into an engineering-minded series. Satisfies my itch for all the engineering and technical aspects of the automotive world yet is still so much fun to watch and learn from. Its like Science Garage on steroids! P.S. - i miss Bart :/

[@The00man]

Same, Bart was elite

[@noahwyatt9260]

We all miss bart

[@jamesallenmainieri]

What happened to Bart and science garage? I miss it toooo

[@BAMaxwell]

@@jamesallenmainieri i heard he’s working at motor trend now? idk i could be wrong

[@purwantiallan5089]

@Damar Fadlan yes. More likely.

[@hpa101]

This platform looks AWESOME! We just had a chat to Cole on our podcast (won't link out of respect), super interesting to hear what drove him and his team to develop these cars and his approach to getting people behind the wheel. Hell of a guy behind a hell of a product! - Taz.

[@MakeSomething]

Oh hey! I have your engine building course and freakin love it!!

[@7Monza6]

Rx3 starts at $58k, according to their website. And the Alpha, the sub 10sec pike car.... $95k. The $30k car is the 700r, which doesn't have a Hayabusa engine. It runs a yamaha 700r from the 700r Raptor.

[@Mecharuva]

I looked that up, and it looks like that’s a single cylinder that’ll do 9,000 RPM but no mention of horsepower. Certainly not as potent but being so lightweight I’d bet it’s still a hoot to toss around.

[@TheWheelsmanx]

yeah I was really disappointed in this vid tbh - they got a lot of tech specs right but the different packages were completely misleading

[@CrossWindsPat]

@@Mecharuva 700cc Raptor engine should be good for over 70HP probably closer to 90 with whatever mods they probably have done too it. But yea it’s not gonna hold a candle to a Busa motor. It’s probably only like 50-100lbs lighter, which definitely isn’t gonna make up for less than half the power.

[@7Monza6]

The Alpha is running at 450hp!

[@whatareyoudoingyouidiot342]

That's still going to be awfully damn fast.

[@luismooney3715]

I love that Jerry loves advertising how much he loves being a power bottom. You go queen!🤣

[@ZTK-RC]

i died lololol

[@buildingwithjojo]

Shit just sent me

[@rogerwilco1777]

He was a high-end kinda guy until he got it low and rough

[@greglapira7186]

Maybe thats why he named his channel the Donut Media....

[@ryans6280]

No idea how he kept a perfectly straight face during that 😂

[@MakeSomething]

We need to talk about Sprint Cars which have a power to weight ratio that's close to an F1 car!

[@828_Nate]

Heck yeah!!

[@JackHowell68]

Hell yeah

[@demoths]

The world needs more 410 sprints

[@themadscientest]

And that asymmetrical aero and alcohol guzzling V8! Also can we get some love for some model cars like tether car racing? It has links to all the greats in auto racing history like Bugatti and Edelbrock!

[@jtclayton612]

My former uncle was a sprint car driver in the world of outlaws, I remember a lot of days at the dirt track as a kid watching the races.

[@militarycurious2686]

This is the longest ad I've ever watched - 10/10 would watch again

[@wakborder76]

They've turned an RC car into a car you can drive and I love it.

[@purwantiallan5089]

Yes. Even Loeb wanna try it.

[@james240sexy]

I believe Tesla did the same

[@DarthVapor214]

I was thinking the exact same

[@mikejones-qj7dm]

you can make an rc car look and sound like any car/truck nowadays.

[@tracym427]

I was just thinking that!

[@aSinisterKiid]

Hell Yeah !!! I just randomly discovered a CrossKart video about a month ago and hearing these things ripping around a Rally course at like 10k RPM and jumping hills was insane. I was like holy moly this is the ultimate adult go-kart. These things are incredible.

[@S85B50Engine]

Gotta love seeing space frames still being used to this day. Iconic cars like the 300SL Gullwing, Maserati Birdcage and Porsche 917 owe part of their success to that.

[@purwantiallan5089]

Huh bots again 😭

[@Thrillowatt]

917 is so buttery

[@observingrogue7652]

Corvettes too?

[@tazquinn-walshe2186]

@@purwantiallan5089 it's been interesting watching people build and develop these bots over the last 3-4 years. The full conversation between multiple people ones are impressive. Annoying as fark, but impressive 😂 - Taz.

[@Kurt_McGirt]

My kid and I have been talking about how to make racing a bit more interesting. We keep coming back to cars like this and crazy tracks better suited for spectators. This looks like something that could pull that off.

[@8thlvlMage]

Formula 1 looks like it's about to have its wildest year ever as well!

[@ben501st]

Reporter: Sierra, how did you develop such a great vehicle? Sierra: Easy. We simplified and added lightness. Lotus: Hey wait a minute!

[@Knockthefout]

Colin chapman: first time?

[@observingrogue7652]

LOL

[@Brainless_Memer]

I hear a lawsuit

[@samclegg2530]

The power bottom joke was the funniest thing I've heard this year 😂😂😂😂😂😂

[@EpicAwesomesauce]

4:28 Jeremiah just casually saying that he's a power bottom.

[@Kyle-ms6fd]

Took me so offfgaurd😹😹

[@CaneSugarCane]

@@Tindurbox Ayo pause😹

[@videobackups9819]

dude likes it hard

[@Peanutdenver]

In the quiet words of the Virgin Mary. Come again?

[@Jk-ot9qm]

I did a reverse to make sure I heard that right. Different strokes!

[@theoriginalwallace]

Mental bit of kit! My old Austin Mini weighed in at 560kgs (1234.589lbs) dry. It had a 250hp Vauxhall XE 2.0 16V engine & 5spd lsd trans running on 6x10" Minilites! Needless to say, it was fearsome!!

[@mrsirford5844]

Love your videos! Amazing. Glad to see that you guys are very respectful over other cars and people. It seems like you guys don’t like to be rude and judge other peoples builds. Keep up the great work!👍

[@mrsirford5844]

That was 9 minutes ago and I already get bots… how… well they are bots. Ok nvm

[@carswapnetwork5584]

@@mrsirford5844 we have evolved. Just ignore them man

[@mrsirford5844]

@@carswapnetwork5584 true. Just annoying but I can deal with them which is mainly complaining because aren’t really going to do much. Besides say bot type things that are said

[@carswapnetwork5584]

@@mrsirford5844 woah! Is it just me or the bots are gone? Thanks Heaven. The comment section looks much clean now

[@mrsirford5844]

@@carswapnetwork5584 lol

[@busutil4]

All i gotta say is, i love you guys. Your videos hype me up everyday through a rough path.

[@shifty1927]

As someone who raced stadium lites (small single seat buggies like 85 honda odyssey,89 honda pilots, redline revolt etc) these are right up my alley. I put 150hp twin rotax sled motors in the honda odysseys and pilots. Been following Sierra and chair slayer a while their work is incredible.

[@shifty1927]

Did the math and my buggies are at 4 pounds per horsepower 💪

[@hazard7732]

There was an episode a few weeks ago that didn't feel like the donut we all know and love. Watching this video, I feel rest assured that these guys are still in charge of the fabulous editing that we all know them for

[@mitchellhalvorson9719]

I love Jeremiah's b2b series. But I liked it better when you guys physically had the cars and walked us through them. That was super cool

[@commentsectionspam2026]

It’s pretty difficult when talking about a 90,000 car like the one talked about in this video but I agree

[@gcaruso16985]

I mean, he goes through the suspension with the actual car

[@Jordan_Is_Here]

Yeah and they went through car builds

[@mitchellhalvorson9719]

@@Jordan_Is_Here yea I made the comment before I got to that part, but it's not like they used to. They used walk around the whole car opening it up, literally going bumper to bumper. They don't do that anymore which bums me out. That was the coolest part of the show. Seeing James hop in a Pagani and flip out when he fires it up.

[@8thlvlMage]

You mean like in this video? Loooool!

[@joshmoore594]

you guys should totally make merch that just says "so much cheaper than $30" 😂 that would actually be amazing

[@mervunit]

"What's inside a $30,000 go-kart?" "$40,000"

[@carlosvillalon2424]

More like 58000

[@davidcrumpet5588]

they just changed the title

[@lothre]

correction; "$60,000" (site says STARTING at 60k) not sure who they think they are going to trick into spending an extra $20,000-$30,000. At the start of the video i heard 30k and was hyped. at the end he says 50k and i flipped my desk. talk about massive bait and switch. lost mad respect for him for that blatant fib, not to mention credibility. bad

[@CGEproductions1]

I was so drunk and looked down... Saw I liked it before the ad end, and got so confused. Lol love the videos

[@KingTroopa]

WOW SUCH INSANEO STYLE! Im glad to see joel is a trend setter =)

[@jgreenjeans]

Joel Haver made a comment in here!

[@qualitycontent5244]

I'm so happy this is getting more attention,they look way more fun than supercars

[@OperationRacecar]

Thanks for featuring my car guys!! It was so dope getting to meet you and shredding that track together. Hope to do it again soon 🤘

𝐒͠𝐩͠𝐞͠𝐜͠𝐢͠𝐚͠𝐥͠ 𝐝͠𝐚͠𝐭͠𝐢͠𝐧͠𝐠͠ 𝐟͠𝐨͠𝐫͠ 𝐲͠𝐨͠𝐮͠➺ sexy-nudegirls.host Anna is a beautiful girl. He's the person I love, he's my light day. The way the music flows and sounds is extravagant and fun. Anna is icon, legend, beautiful girl, princess, inspiration, a star. I could go on and on, understand this. I love NBA Anna.#垃圾

[@tazquinn-walshe2186]

You have made an excellent life choice! Hope you're enjoying your Sierra 😎 - Taz.

[@OperationRacecar]

@@tazquinn-walshe2186 Haha thank you

[@jordanhoughton1948]

This is like a real life version of Tyco's Turbo Hopper RC. Sweet!

[@DeathGamer27]

This thing does NOT start at $30,000, it starts at $60,000. 30k would make this outsell all UTVs and probably Side by Sides, but at 60k you could get 2 SxS and outfit them both to be almost as capable as this. Still f*ing awesome though!

[@stupidassol]

Current pricing, all you would get are 2 sxs for $60k without upgrades. Which is ridiculous in its own right...

[@tazquinn-walshe2186]

These are essentially hand built, they are not cheap to purchase outright and the company does not hide that. The advantage comes from the range of applications you can use these in, and the cost of running. The cost of running alone is a HUGE consideration most people do not think about because they are too focused on saving money on the purchase price. This is certainly not a product for everyone, but for those it is for, as the video covers it does so much without massive costs in time and money changing setups/modifying. I'm certain if you get behind the wheel of a side by side and one of these to compare, the difference to you will be night and day rather than just 'almost' 😎 - Taz.

[@rogerwilco1777]

At that point I would rather have a Nomad or an Atom with a honda drivetrain. Way easier to fix and an endless aftermarket.. (+500lbs heavier though) and probably over six figures now too??)

[@justinculver7061]

Hey I gotta jump in here. I own one of these RX3s and it is fantastic. I have buddies with sxs and there is NO COMPARISON. We have done track days together, dirt, and sand. These RX3's are head and shoulders above those. Take one out for a test drive. You will see!

[@kriscerosaurus]

Always dig the engineering breakdowns in this series. Nicely done.

[@TeeMilli0N]

One of my fav channels. They cover such a wide range of topics. Thanks guys.

[@BigChungus-no1ve]

@ why

[@Emppu_T.]

I just wanted to thank donut for not only keeping the ole car nuts entertained, but also peaking interesting and bringing new enthusiasts to the mix and thus assuring the car culture lives on. Thank you.

[@zippienippi]

1:41 Holy shit, he said INSANEO STYLE! Someone tag Joel Haver!

[@DakotaB90]

Awesome video man!

[@Rltvader1]

This thing is so much cooler, and makes way more sense than buying one of those horrendous slingshots

[@miraclealiencookies9401]

Yeah but how you gonna pick up bitches in the rh3? 🤔

[@lukecoble57]

@@miraclealiencookies9401 be honest bro

[@ForzaMonkey]

@Miracle Alien Cookies if you own an RX3, you are too probably busy doing better things than picking up girls. Better things like; having fun, getting dirty, and going fast.

[@panavmendiratta6723]

Remember when this video was titled "this is the best car/go-kart i've ever driven"?

[@natemorton3726]

6000 LE finally gets the publicity it deserves 🤝

[@The_journeyy]

This is such a sweet looking ride must be so fun to drive

[@flynn_rocky618]

A new day of asking for Up to Speed on Austin, BMC, MG, Land Rover or British Leyland!

[@jah_b]

I believe there is one on land rover

[@BasedDocumentarian]

Certified Bruh Moment.

[@tscotom]

Ahh, Austin ... BMC (!) as in British Motor Company, ... not to forget Morris, MG for Morris Gardens, Wolseley & their luxury Vanden Plas Princess. Sad their 'evolution' :-( to BLMC & bankruptcy-oblivion. Now MG is Red Chinese, Land Rover, Indian. There is a saying, "The Brits are BRILLIANT in concept, then bringing the product to reality. Marketing, alas is their "Waterloo." Hence, the only legacy British car brand today 'still British,' could be the Morgan. :-(

[@flynn_rocky618]

@@jah_b no only on the range rover

[@flynn_rocky618]

@@tscotom yes, you are absolutely right!

[@thatcarguy1UZ]

This is basically a full size street legal RC-10. I like it. I like it a lot.

[@SlantSix896]

Basicly a lifesize rc buggy with a Hayabusa engine.. Awesome!

[@keepthezen4256]

The family tree at 0:23 is pure art

[@bruhnt5063]

Day 291 of asking Donut to bring old B2B back WAIT A MINUTE THIS IS OLD B2B!! kinda..

[@bruhnt5063]

@Game Channel Minecraft🐼 hey

[@cadecarp11]

I'm poor and so are my friends, but I'm fortunate enough to have a friend with a rich brother. Said brother, has an rx3. I had the opportunity to a sierra car hangout with them and Cole the inventor. I got to spend some time in the driver's seat and it is absolutely bananas!

[@redditsandedits]

You guys should do more off-road videos/cheap vs expensive off-road videos,but this time maybe with purpose built rock crawlers🤔

[@plainee6183]

They've done overlanding and road racing, they should try another discipline like rally or drifting

[@mikear.4062]

Your editor gotta improve his audio editing skills lol 15:07. Great video tho, entertaining and informing as always 👌

[@joshuacrossman2895]

good video. I liked the video being more involved with driving. I'd like to see a little more with B to B and Jeremiah as far as video length and using cars for tests . Also, would have liked to see the tire get fixed and have driven more with test results, lap times with different shock stiffness settings, 0-60 on dirt and an explained driver experience afterwards. Jerry's capable of B to B being on a larger scale. would be great.

[@Bacon75420]

@4:28 Jeremiah just admitted to being a power bottom…I knew it all along 🤣😂🤣😂

[@UyeGaming]

I love this car in Forza Horizon 5. You can downgrade the tires to drag tires and make it a killer B class.

[@nothing2see315]

It’s in the dirt games but they only allow you to use it RX tracks

[@nothing2see315]

@anothaview I went to the moon once it’s not so bad man

[@VS666]

LYFE is one of the best motorsports companies out there, hands down

[@rudymuller5251]

They are awesome and super nice. Very happy for their success

[@RjMelton77]

Its awesome, but what about a can am X3. I now it's heavier, but it has great power to weight, lots of power, trophy truck suspension, and two seats. Also cheaper

[@DakotaB90]

This is just insane!! I need one in the future. Goal!

[@Baimobile7]

Now I’m definitely going to build this in Forza after work

[@brandonmckibben1164]

4:00 I absolutely lost it. That was such a great subtle joke.

[@dominicfroke9679]

ERROR IN VIDEO - GEAR CUTS... Straight cut gears are not as strong as helical gears, when the material in the gear and the sizes are the same. Reason being is that helical cut gears have more gear teeth area touching at a given rotation. Making them stronger.

[@DaveyGa]

Yeah there's several errors, eg "Power to weight" is actually given here as Weight to Power...

[@collinthomas6288]

I love cross kart. So glad there is a new American manufacture

[@grantsmith1655]

This is really cool, and I love setting stuff like this. But I have a bit of a request. Would you guys be able to do a more engineering based series, like science garage back in the day. I would love having a series that specifically goes in depth, but with someone who is actually entertaining haha

[@speedKGDM]

YOOO THIS IS MY VEHICLE… when I was 8 or 9 I went to a demo derby out of town with my family. Some kid brought a quad and to befriend him I push started it with him. We only used the clutch for starting it and we were able to shift it without the clutch. 😂😂😂 it was so bootleg I can’t even remember what make or model it was. It was easy to slam the gears with out grinding. I remember loving that feature. And this is what reminded me of it

[@maxlag4518]

wow these thing appreciate quickly goes from 30K to 40K in like 10 minutes crazy

[@Shawnspawn315]

the end of the show he said 50k

[@gurabirierosanopara620]

As a car loving gay human you cannot measure my smile when I heard the power bottom joke and the way it was made! You guys are nice people.

[@DeuceFrmEC]

I snorted😂

[@I_THE_ME]

9:50 Those Öhlins look way better than whatever it comes standard with, and they probably work way better too.

[@korbiniankohl7961]

Nah ext coilovers are used in hyundai WRC cars, so they are pretty good

[@stainsonmycouch3655]

It’s so funny, I just took strength of materials and learned all about deformation and strain, and torsion and all that. Makes me appreciate that there are smart people building these cars lol

[@JSwatchesthings]

What's inside a $30,000 go-kart? Me, hopefully!

[@OperationRacecar]

hahaha perfect comment

[@keneucker371]

I wanted to hate this video because I thought dude was obnoxious but honestly it was a fun ride and he's funny. Owning one of these toys would be a dream. I wanna take one for a rip in the desert.

[@shaider1982]

For some reason, I am imagining this with rocket pods and being used in the desert like the LRDG from WW2.

[@Yalreadino]

This video is so informative and it goes so freaking insaneo style

[@MrQuestful]

I think we need many more sub-1,000lbs vehicles, and sub 200lbs vehicles. The idea that we need 4,000lbs to move less than 300lbs is fundamentally excessive for everyday use.

[@soundboydesign1373]

...learn and laugh...love it! That's Donut to a T! As "he" says...put that on a t-shirt! One love

[@samfedorka5629]

It may officially street legal, but nobody is going to drive a car without a reverse gear on the street.

[@J2540-]

How did they make it street legal?

[@jcnopal1740]

I do it all the time in my shitbox 😅

[@suyashjaiswal2782]

Its light enough to be pushed backwards, so a trade off wiling to make

[@MrSpeedyPete]

It may have electric reverse but don’t quote me on that.

[@rmspinoza141]

Great information, insane and fun Kart !! Absolutely love B2B!! It would be great also if you include in your reviews some pros & cons of the product, according to your perspective and knowledge; to learn more about those toys!

[@bj_]

With EV cars setting pikes peak records alongside these, it would be cool to see one of these EV swapped. Lose about 80lb of motor and trans, pick up an extra 500lb of battery, and find an extra 100hp to lug those batteries around

[@4literv6]

There was something like this but I think it was a rzr with a tesla model 3 rear drive unit out at sema last year. And they powered it with a believe a custom pack made from 2 disassembled zero battery pack's. Looked cool but couldn't find much on it. 🤔

[@wiegraf9009]

Would be best to put the motors at the wheels, which might not be possible with an open wheel setup like this?

[@bj_]

@@wiegraf9009 0.o make the wheels a bit bigger and put the motors IN the wheels lol if you're comfortable stringing 800volt lines across the struts lol

[@mrbmp09]

He said inside wheels rotate faster than the outside wheels, that was backwards. 7:30

[@Joel-dz8ks]

Investing in crypto now should be in every wise individuals list, in some months time you'll be ecstatic with the decision you made today.

[@user-mn2gc8qg8f]

My first investment with Mr Greg Gonzalez gave me the assurance that have made me invest without the fear of losing, I got four of my friends involved with him already

[@amorton94]

I've been wanting to see Grind Hard Plumbing build their take on one of these for awhile now. Such a cool concept.

[@DeadBread.]

14:11 " ...Across any surface that it might be travelling on" Rx3: **flying**

[@s_t_r_a_y_e_d]

I can def see snow ski's being developed for the front and sand tires in the rear for a Deep Snow RX-3

[@treysmith32]

Happy to say I’m building one of these soon!! Gonna upload the process on my channel :)

[@kyal1068]

14:00 "across any surface that it might be traveling on" *car flies*

[@teemlee51]

As a long time, Pikes Peak motorbike competitor, I can safely say that ball of fur is a marmot. Excellent information on this RX3, entertaining as well. I want! Cheers...

[@timk1980]

great video lads, looks like whole lotta fun!

[@RashaKahn]

Wooo… found my mad max car for the apocalypse!

[@trentrichard2871]

just subscribed. Love your transfer of knowledge straight into my brain. Great video. Thank you 😊

[@jeremykight2309]

The fact that this manufacturer is getting attention, Man U love to see it

[@DakotaB90]

Love the content

[@cameronbowshlagger2722]

I 100% would watch a racing series with all the varieties of course with a field of these.

[@dominicnicklyn7897]

This makes me even more excited for my DF goblin build coming in May

[@LoudGuitar14]

It is a riot to drive a Sierra RX-3. I would love to do it again. Wish I could afford to buy one

[@Velopod]

4:28 "You guys know me, I'm a powerbottom" I SNORTED

[@Grumpy_old_Boot]

Not really a car, it's a toy ... a brilliant, wonderful and joyful .. toy !

[@TheGoodBook777]

Can we get some episodes where you have the car and are reviewing it (Like old school b2b)? Would be really enhanced with Jeremiahs engineering knowledge and story telling ability. This would have been a great episode to do with the rx3 in the garage. Great content Dount!

[@TheOriginalG.O.A.T]

That hat is super sick. I like how it's not branded like most KZbin merch

[@Crunched-diff]

Thank god someone finally made vids about kross karts

[@SharpShootr92]

Watched these things race in ARX at Mid-Ohio raceway a few years back. I thought they were the absolute coolest. I wanted one so bad.

[@Jmacfann]

So happy you guys did a crosskart episode.

[@jasonmullen1256]

thanks for getting my hopes up, watched the video and was pumped! went to the website. STARTING PRICE............$68,000$ NOT 30,000

[@jakegarrett8109]

same

[@righty-o3585]

That dude on the Pikes Peak run was completely HAULIN BALLS the entire time too. I think there 3 turns where he had to drop down slower than 50 mph. The rest was insane...

[@JayFude]

The O.G. all purpose car. The VW Bug. It's a Baja, dirt drag, street drag, hillclimb, drift, rally, just by switching tires and suspension. I've seen one do a solid 10.04 drag, then put on sand tires and pull a wicked rooster tail.

[@motorcyclestig8539]

It's like a off road shifter kart. When I used to do kart racing I always wanted to take the performance of a shifter kart and make a dirt version and this is basically what it would come down to. I'll take my pro r over this any day of the week though when it comes down to the price.

[@vjbk1587]

Those look like a ton of fun!

[@OmDahake]

Great episode Love the car very innovative creative and exciting car