DIY 9,000 Watt All-Terrain Mountainboard Beast Power-sliding and Off-roading

Probably the most powerful motorized skateboard out there...
Read more about the name and philosophy here: tinyurl.com/ydbxsuer
Check out the build tutorial here: tinyurl.com/ybr8dw6x
FLIPSKY ELECTRONICS
• FSESC 6.6: tinyurl.com/ybpd2vct
• Motors: tinyurl.com/yas6k4vo
GEAR IN VIDEO
• TSG Pass Helmet: amzn.to/2KhCcHa
• Triple 8 Helmet: amzn.to/2IlD1tj
• Drone: amzn.to/2SfQR65
Music: Cascade by Kubbi
kubbimusic.com/album/ember
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[@skatemetric627]

The build tutorial has been posted! Check it out here: skatemetric.com/index.php/2018/12/16/patriot-build-tutorial/

[@toolshedsz]

All of the pictures on the tutorial are down

[@sparrowhawk5673]

Even changed browser and still unable to see pictures

[@vikingmic]

Can you fix the pictures on the website please..?!

[@21111009198573]

How do you get 9,000 watts like what the equation/formula to get to that number I know you are using the turning 12,000mah 6 cell battery but I cant figure out how you get 9,000 watts

[@MARYOLIONHEART]

@@sparrowhawk5673 Same here, nothing works there

[@padraicmcgraw]

Is anyone else reviewing boards or other electric vehicles is this stats oriented fashion? I really appreciate the detail, and you are the only ones I've come across that give such great reviews.

[@diondru]

dkwan

[@ryanberardelli2363]

This channel is excellent! Keep up the great content!!

[@epjo122]

Great video again guys!

[@JonnySolomon]

You guys should post often

[@domobrah2671]

Very high quality reviews guys!!

[@freestonsfinest4002]

I have this board, I’m deff going to do this!

[@gzdoggie]

Sweeeeeeet!!! Thanks for making this video 🤙🤙

[@ratheonhudson3311]

I agree, there is a lot of power required for a hill climb and your build looks a lot more capable and yet affordable than most I've seen. I bought a pre built board with 3,300 watts and it's great, but there is always a demand for more torque or general acceleration power when going through trails and hills. Yours exceeds the milestone by 3 yet less OK's sturdier than mine. Also, hot swapping a empty battery is perfect.

[@rupesh6363]

This is so badass!!! Awesome

[@BULPIN847]

Nice work guys that's just what we need affordable board that can haul ass and you can never have too much power never ever can you have too much power ever

[@moshedabash1265]

This beautiful

[@kriskraanen9570]

Build Tutorial please! And a full parts list this the crème de la crème

[@everybody5087]

fantastic vedio. have you measured the distance with that battery and is there other batteries that has more mah

[@RexSmithII]

what's your experience with sensor motors vs sensorless? im told sensor have more power at bottom but can have more issues, but with the new dual vest 6.6 plus I would assume sensorless is the way to go! what do you think the sweet spot is for kv rating? I was thinking of 130! I have 170 now but never ever use the top end.

[@TheSpore35]

ITS OVER 9000!!!

[@ratboyboyrat]

How many miles do you get on the board? Any updates since you've posted it?

[@jdhaggard562]

I built the patriot (for the most part) and the aluminum trucks base plate cracked twice already on the front truck. My first time going through some rough dirt and a pebble got under the belt and bent the motor shaft. I need a closed belt mounting system and maybe to spend a little extra on MBS trucks or something but that changes the price game significantly. However, I do not feel these trucks are a safe bet for this power and speed. I wanted to love it, just need a few modifications to make it sick. I did opt to buy cheap bindings, very helpful for sharp turning and off road. Did I mention the deck is heavy as all hell. This deck is really stiff and heavy. Oh and the springs on the trucks.. yeah well after some heavy riding they start bowing. Next thing they do... pop out. If you lean hard once you get decent, the board leans right into the pulleys and will eat a little notch into the board but no biggie. It has a few serious problems to address but for the price... This was my only option for a real off road board.

[@martinreeve8992]

Thats epic man, im building my own for the next season. I want an all terrain, going 50-60km/h and a range of 50km. Can you recommend any parts. How good is the range on this one in the video? Thumbs up!

[@jamesthebaut299]

You guys should do a video on the Raptor 2.1

[@stephenpollauf2695]

Hey @SkateMetric after 3 years how did that assembly hold up? how many miles, what had to be replaced, and mainly how did the trucks last?

[@dallindworczyk2882]

Just curious, in your tests how much range did you find these boards to have?

[@j.d.7650]

Cool video. I'd be cool to see a more in depth video on the parts list and building the board (and more power slides of course!) and for $1k that's a pretty impressive spec sheet (even if it is diy)

[@DanPrintzhunny]

I second that.. would love to see a parts list.. I only see the motors and main board links...

[@Messy_Jesse]

What kind of range do you get on your builds? Also looks like there is an upgraded version that is a bit cheaper Fsesc 6.7. Should I stay with the 6.6 model? Thanks

[@BR-ow8ik]

Hey guys, love the video and concept! Just a curios question, why did you guys choose the hand controller you are using? Could I swap it out for a smaller one like this? flipsky.net/products/flipsky-remote-vx1 ? Seems the smaller one might be more suited for the offroad runs, again I've never built one, thinking hard on this one and was curious about the controller, thanks in advance, keep the videos coming.

[@fern8594]

Please please review the AEboard it might be your new favorite Chinese board 😎

[@1fareast14]

The backfire ranger comparison is interesting. I'm looking at one not for total AT performance, but as a commuter. The hubs are attractive to me mostly because I want to be able to push the board sometimes and because they are quiet. The wheels look big enough not to be bumpy on a sidewalk. Has anyone found hubs that are powerful enough for a hill or trail? Old hoverboard motors are too weak, unfortunately.

[@pedxing]

oohhh. Just noticed this hasn't made the visualization chart on your website yet. Would love to see this 12s lipo make its way there. =) Also, of course this means you are going to need to build out a GT street version with a 12S just to round out the edges. ;)

[@EricRobinsoncav3manb0b]

As a daily commuter? I mean I like the DIY aspect, I just don't want the range anxiety that comes from green death in wiring I soldered myself. Also I am in the market for my first board. Gaw! Another project. I wish I hadn't seen this!

[@guillaumedebregeas5090]

The belt doesn't slip with 4500W of power ? Also, what is the range with these batteries ?

[@xianelvirauy7321]

Hi could you do a similar tutorial but with a more portable design?

[@EthyoDancehallsongmaker]

What type of bushings you put in the springs ?

[@Ghost_GA]

Hello. What size box you use on the board?? For battery. :)

[@viddotcoach]

About how much if I've already got a mountain board!?

[@nickzenor5603]

Will it ever get straps? Or can you easily add them?

[@wowgoboard]

Wow, great video guys!

[@mountaindewdude76]

How difficult was it to calibrate that esc?

[@ragnarok400]

Could you do this with a trampa deck?

[@Nandox7]

What pulley & gear did you use to get that torque (and not speed) out of the 190kv motors? For off-road you usually see 130 - 140 Kv motors.

[@nedtrampz85]

Where is the answer? 😁

[@KAMiJUINs]

wow~

[@ragnarok400]

Hey! love your builds!

[@mrtmrf5007]

hi , how may miles can this go? can you post tutorial for balancing more than 2x 12000 mah , something like 4x or 3x or more??? thanks

[@jacobcloinger5853]

I went with l-faster electric mountain board Dyl custom set up. So now I go with something more like this board, as lfaster didnt hold up to my Weight of 225lbs. So everything was slow and dead speed at first. I've now put about 2000 dollars into my custom electric mountainboard and flipsky is moving me just fine. My battery box is on top and the best they have, I fsec4. Is in a back waterproof box, like most high-end boards from Europe videos. Witch take mbs mountain board to a hole new level. Also I add flow bindings for comfort as, I loved snowboarding. Yes my mbs electric mountainboard is a fully customizable board with the best on it. . .

[@kenotic]

What is the range like?

[@captainwedgie1783]

what is the rannge on this build?

[@sethmcneill4450]

When is there gonna be a vid on how to build?????

[@kumaharu2565]

can u guys make a review the paean board snd the backfire g2s because i want to buy it but there is no relevant review out there

[@xSynatiiC]

try Daniel Kwan

[@maxyt569]

For 9kw don't you think that you need s chonk wire? 4awg?

[@gregorypatzelt6964]

What kind of battery pack or batteries would give you the best range and best power on this build?? Would using Samsung 30q cells or sanyo cells in either a 10s or 12s configuration give you more power/range than what you put in here? I am interested in doing this build, but am unsure of the range you guys are getting with your current battery setup? What would you recommend?

[@jessepatterson8897]

they are using lipos for cost. less safe, less range, more replacing. This shit is trying to prove that you can have amazeballs for less money, and it's kinda purposefully misleading, and no where near 9kw.

[@pnwbigfoot7179]

Super cool DIY! Not sure the math is right in the title on this one. The specs for the motors are Max Power: 3250 Watts. So, x 2 = 6500 Watts, not 9000 Watts. Straight from your link to the motors. Why isn't Trampa in the comparison? Thanks for sharing.

[@jessepatterson8897]

where are you guys located? I would love to compare this in off road performance to my kaly.nyc, which is pretty similar in voltage, but an 18650 12s4p build with the same 74mm motors. If you're in the NY area you should come to a ride.

[@canaanwinthrop2463]

Jesse Patterson looks like this was filmed in the PNW. Likely Washington State.

[@karlstern7877]

how do you achieve 9000w on just two motors? I can't find a single suitable motor rated for 4500w .. are you over-watting them (the motors in the link) with the vesc's programming?

[@maxyt569]

There math is wrong becuse it says the maxis 12s at 95 amp and that is 4700watt (ish)

[@dougpage3172]

For people who do not know much about diy esk8... when building a mountain/off road board like this, one should use lower kv motors which increases torque but reduces top speed. Instead of using the 190kv motors like in the video, which have a great top speed, do not unlock the full potential of this board. I would like to see you try to go 40 mph on a trail like you show in the video... you should go with 149 kv motors to still have a good top speed and have a lot more torque. I know flipsky sent the 190 kv motors for you to use but lower kv motors work much better on off road terrain.

[@ATLracing]

I'm not sure this is entirely correct. Keep in mind that with an ideal speed controller, a lower Kv motor would provide no torque advantage over a higher Kv motor (even with the same batteries). As far as I know, lower Kv motors only benefit systems with current-limited ESCs, and these VESCS are some of the beefiest out there (as are the batteries). FLIPSKY claims a burst rating of 400A per controller, which I believe would saturate any 6374 motor. If that rating is to be believed, lower Kv motors may offer little-to-no benefit. And as you can see in the video, torque is clearly not an issue here. Has anyone tested this empirically?

[@T-Sav]

Yes tested multiple times in FPV and eskates - lower kv = more torque , you can increase/decrease torque also by using different gearing. But KV = as we use it refers to the rpm constant of a motor - it is the number of revolutions per minute that the motor will turn when 1V (one Volt) is applied with no load attached to the motor, the less revs per volt means each rev has more volts to push the board with

[@zachohanlon3517]

Douglas Page while you might be theoretically correct, I did not see any place in the video where the board was motor limited. I did see a spot that was traction limited, and SkateMetrics described that you could break the rear wheels free very easily, which doesn’t strike me as being anywhere close to motor limited. If you wanted to increase effective power on this setup I think you would need wider wheels or four wheel drive. 149kv motors would just make it more traction limited while decreasing the top speed.

[@T-Sav]

​@@zachohanlon3517 Zach - he is theoretically correct and also correct in reality. He didn't mention the board looked limited in the video at anypoint he was just making a suggestion regarding the KV. how can wider wheels increase the power???? How would 149kv reduce the traction of the wheels? I agree it would reduce top speed, but he did say when will you go top speed 40KMH ? The video even states they never use full speed.... Why have the ability to go 40 with less torque. id rather the able to go 30-35 and have a bit more power low end. I have a trampa e-board and only ever hit about 28 MPH, then again im new to it so could step this up who knows.

[@ATLracing]

@@zachohanlon3517 My point is that with a 100% efficient ESC, Kv ratings and torque are completely unrelated. A higher Kv motor will indeed provide less torque for a given amount of current than a lower Kv motor (by definition). However, because the lower Kv motor's back EMF will be proportionally diminished, an ideal ESC will be able to provide more current to it, without drawing more from the batteries. Of course, a real ESC's output current is limited, but useful current in the motor may also be limited by magnetic saturation. In a situation where an ESC can push a motor of a given size to its saturation point, it stands to reason that swapping in a lower Kv motor wouldn't actually improve torque, and would only reduce top speed. But the real world is full of nonidealities, and this reasoning may overlook other complications. That's why I'm curious if someone has tested the relationship between Kv and torque with a setup of the Patriot's caliber.

[@vicilah]

how do I charge the lipo batteries

[@vikingmic]

All of the pictures on the tutorial are down

[@gurubazawada2936]

how much does it weigh?

[@yoyo-gi4wt]

What’s the mileage on this build

[@mikulasgiesl1076]

Can i ask for range of this beast

[@julianpark567]

Can I buy the kit

[@sagesends]

Is there a full components list

[@sadladcinn]

ya

[@retro2712]

@@sadladcinn bruh

[@sadladcinn]

@@retro2712 bruh

[@tutancamonelninofaraon115]

💚⛈

[@Tyemuck18]

I would make that four wheel good lord

[@hardywiedemann]

How about selling a completed version? How is the range?

[@jessepatterson8897]

you answered your question

[@ethanalden4873]

I want to tackle this build. The tutorial doesn't have pictures anymore, though

[@lukasjanky5831]

ethan alden i can help you

[@michaelmarlatt2961]

Can someone explain where they get 9000 watts from using 2 3250W motors?

[@sagesends]

The high discharge lipo's (instead of regular 18650 batteries) ups the rated wattage i believe

[@skatemetric627]

Think of motor and ESC ratings as suggestions; they don't actually put a hard-cap on performance the way batteries do. If you managed to run this setup at peak power for an extended period of time, the motors would undoubtedly overheat. However, with acceleration this strong, it's impossible to apply full throttle for more than a fraction of a second without reaching dangerous speeds (or more likely being thrown on your ass), so it's a bit of a non-issue. This is perhaps an over-simplification, as a motor's size can hard-cap performance by non-thermal means, but that's a discussion for another day.

[@michaelmarlatt2961]

SkateMetric that makes sense, thanks!

[@jessepatterson8897]

@@skatemetric627 your mosfets hate you

[@epjo122]

Where can i find the wheels, trucks and batteries?

[@chrisrathjan1501]

They look like L-FASTER trucks and wheels from AliExpress. Certainly not the best. The bushes flog out the hanger quickly. I used bearing retaining compound. but the pivot pin is also wearing out the tube so must use a heap of PTFE lube to fix the squeaking. The wheel bearings arent much chop. On full lean there isnt much retaining the springs I have had them pop out regularly when trails get really tight. Solved that with silicone adhesive and cable ties. decks are very common about $50.

[@chrisrathjan1501]

Batteries from HobbyKing

[@epjo122]

@@chrisrathjan1501 ah thanks man

[@Strech621]

Prolly www.mbs.com/parts/ but Idk. Hope this helped.

[@flyingfox8586]

@@Strech621 no, mbs is much higher quality. This is l-faster/diyeboard junk.

[@ChamunksArkturus]

tutorial links are dead jim

[@goldengear6125]

Hey I know that this video was a year ago. I'm having trouble staying on your site called Flipsky.net. Just keeps reloading on its own every 15 seconds. Idk what the problem is. want to see what's on your site but it just keeps reloading.

[@ragnarok400]

Flipsky isn't their website they dont own it.

[@cassisgracia977]

It have regenerating brake?

[@skatemetric627]

Yes

[@domobrah2671]

Hahahahahaha you just put the backfire on blast. Backfire makes excellent street boards but yea the ranger looks wimpy af especially when compared to the mountain trails that I want to shred near my house. Its a beautiful board tho looks like the batmobile as a longboard but Ill look to diy as I want a monster board that I know can get me through the shit

[@marvelclyde]

Help i need the Build Tutorial 😮 it’s down 😢

[@dylanknowlton1967]

u ever find another link for the build guide?

[@matelslug1]

i would name it, ur personal launch pad...

[@FriesenDesigns]

Nice video again guys, disagree with your 9000W rating though (but I do understand it sounds cool in a video title). Ultimately more than 4kW through an electric skateboard platform is just silliness. I've calculated and it's like going 30 mph up a 20 degree incline for a 100 kg person. There is pretty much a 0% chance the Flipsky dual ESC can push 100 amps continuous through both motors and even if it could, the winding resistance of the motors is 50 mOhm. At 100 amps the motors are going to heat at 500W so they would melt in about 30 seconds or less. Can I send you guys a focbox unity to review? I designed it and I'd love for you to see how it stacks up. Simplifies builds and our new app makes programming it safe and easy. Product page here if you're curious: www.enertionboards.com/focbox-speed-controller/focbox-unity-dual-motor-foc-controller-esc/

[@jessepatterson8897]

Yeah, it's just for the ratings. There are lots of practical reasons 18650s work better. They are slightly more strudy, lower discharge rates also mean more cycles and longer range. Just add more in serial until the esc or vesc can't take it. Still, i would love to compare this to my 12s Kaly in terms of performance.

[@skatemetric627]

No doubt our rating is a tad optimistic, although probably less so than most advertised esk8 power figures. Keep in mind, however, that delivering peak power for 30 seconds was not a design goal for this build (30 seconds with the throttle pegged on this board would take you to the moon :D). We'd definitely be excited to get our hands on a FOCBOX Unity. If you could shoot us an email at our business address (listed in the about section of our channel), we'd be happy to coordinate that with you.

[@mastermnd22]

Also the motors you have shown are 3250 max watts each. Not close to the 9000 title.....

[@skatemetric627]

​@@mastermnd22 We addressed this in another comment. To restate here: "Think of motor and ESC ratings as suggestions; they don't actually put a hard-cap on performance the way batteries do. If you managed to run this setup at peak power for an extended period of time, the motors would undoubtedly overheat. However, with acceleration this strong, it's impossible to apply full throttle for more than a fraction of a second without reaching dangerous speeds (or more likely being thrown on your ass), so it's a bit of a non-issue. This is perhaps an over-simplification, as a motor's size can hard-cap performance by non-thermal means, but that's a discussion for another day."

[@andreashaas4389]

Jeffrey Friesen maybe you want to sent me a unity for testing too 😉🙏🙏🙏 would like to push it to there limits with my quad 6374 or my dual 8085 emtb in the cold russian winter 😅😜🏂🏂🏂

[@randomkai1870]

Range?

[@jessepatterson8897]

those are lipos, high discharge, low range. IMO not ideal for this application, but they are cheap! low cycle count too. There's a reason no one uses them.

[@skatemetric627]

@@jessepatterson8897 That's not correct. The LiPo batteries we use provide 532.8Wh, which puts them on par with a 12s4p 30Q configuration. In other words, range is not a problem. And keep in mind that a 12s4p 30Q configuration would cost about double what we paid, and provide less than half the power.

[@arthurdefrain3384]

3250 x 2 = 9000 ????

[@josephrigoli3065]

First view!

[@chrisjarram9405]

Not even close.

[@Electronic4081]

You can always count on skatemetric to do stupidly overpowered builds!

[@Electronic4081]

Over

[@freedomcaller]

3250 + 3250 = 9000

[@Jason-TheChad-Muska_circa1995]

Yeah it's kind of just common sense that you don't make a mountain board and not put bindings on it

[@sam_iov1795]

FIX YOUR WEBSITE PLS IT AINT SHOWING THE TUTORIAL BUILD!!!!!!!!!!!!!!!!1

[@dylanknowlton1967]

u ever find another link for the build guide?

[@daweeb69]

nah, the backfire ranger is more like an SUV than an offroad board. and I got mine for 699. ill pick ranger for any time.

[@Pryside]

Dual vescs cant even produce 9kW. They have a 100A Phase amp Software limit. These flipsky vescs cant even get close to. If you are lucky you might be able to pull 80 battery amps with 100 on the phases, per vesc. With a 12S system thats a 43V. 80x2x43 thats 6.8kW That is by far the most Power possible with a dual vesc. Anything more is a lie

[@everybody5087]

factx

[@Bigwingrider1800]

I TAKE IT THIS IS NOT FOR A BEGINNER. WHAT ABOUT A 60 YR OLD BEGINNER..

[@EnnTomi1]

Idk, its powerful but raw. 1000$ for this kind of appearance is abit hard to swallow . The box the wooden deck just looks ghetto

[@sagesends]

you're exactly not who this is aimed at

[@EnnTomi1]

@@sagesends not with this price.

[@nedtrampz85]

Pay 3000-4000 then.. :D

[@TonioXenon]

Mountainboards aren't made to be pretty but it's diy so you can change whatever you want to make it look cute.

[@sagesends]

@@EnnTomi1 The price pays for the hi discharge lipo batteries, quality esc, and 190kv motors so you have 12 HORSEPOWER on an electic SKATABOARD. If that's not worth $1000 idk. Go buy some sleek X1 and get left in the dust

[@eskateforlife86]

check my build for quality truck part and performance IMO the patriot is cheap and not reliable ! bad motor mount bad controller, bad truck, bad hub on the wheels seriously what you were thinking saying it is a beast ? and how the hell do you think you can push 9000w for instance : 42v x 100a = 4200w of power by motor if only you could run continuously but it is never the case and even then you at full battery on develop 8400W but those tiny motor suck balls at 3000w so be real and stop put some false description !

[@skatemetric627]

The parts are very reliable. We're right about at the two-year anniversary of the build, and everything's still working great (only the motors have required replacement). And you might want to redo your math, considering the board has TWO motors and runs 12S batteries lol.

[@Guy_makes_thing]

Don't you think it's a bit sad you have to scavenge views from another channel so agressively?

[@flyingfox8586]

And the truth. This platform is somewhat unreliable. *The trucks are unstable at high speeds (springs only, bounces around the place) *There are no replacement bushings available for these trucks *The bearings for these wheels are pressed in, hard to service/difficult to replace *The hubs are unbalanced, adds to high speed instability *the magnets of the Flipsky motors will come loose. High failure rate *belt slipping will happen with this motor mount design I owned the same platform with similar mods compared to the original chinese version. Switched to Trampa. Far superior. MBS will also provide a much better ride. The board in this video combines high-speed with an unstable platform = dangerous and unpredictable ride.

[@AquaStructures]

Don't be all drowning the Ranger. You probably never even rode one. Besides they have inhub motors so you don't get all the mud and dirt up in your belt drives. Let's see you come up with something more innovative besides a taklebox screwed on top of a $40 board.

[@skatemetric627]

If the Ranger had enough power to ride in mud that might have been a nice feature... shame.

[@everybody5087]

oooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo@@skatemetric627

[@jellybean4220]

u know whats most annoying ? cannot find the place to buy from ..useless

[@rowleydell7898]

The base of this build is a cheap china made board that is junk. The rest of the build is ok but still could be alot better.

[@skatemetric627]

rowley dell the skate parts are great. Still absolutely no failures months of very heavy abuse later. If you want to spend more time and money go right ahead, but if you're just going to thrash your board off the trail, it won't make much difference and you're not going to get anything more durable at the same price.