Can the Monster Chopper Hill Climb? 

I love how Ethan doesn’t compromise on how he wants things done. Perfectly good and functional v1 light bracket, “I don’t like it” (makes another one) Mad respect man.

Please, please do more long term projects like this. Watching Ethan fully in his element on these super creative projects is what every other builder show wishes they could be. This is some of the best content on RU-vid!

I like how the second half of the video is essentially re-engineering everything they did in the first half. That’s real life engineering. 👍

The fact he was running cad without a mouse was the most impressive part of the video.

This bike should be in mad max for sure!

I cannot believe how capable this thing is! I remember Ethan talking about how it probably wouldn’t be great off-road or really be able to do the rally track…

This thing is so badass. One thing I wish you'd done differently: that fork-mounted headlight is gonna blind you while driving... if you designed the bracket to offset the lights to either side of the front tire, and slightly angled outward and down (so you don't blind oncoming traffic), the light wouldn't bounce off the tire _plus_ they would actually be functional instead of purely aesthetic.

I literally KNOW that it's unlikely that you see this comment, but it is SO cool to watch this MONSTER of a THING to be ridden and somehow still feel like i could be driving it, even though it's more than evident that i couldn't drive it, even if i had the chance, when way more experienced drivers have a hard time controlling it. What i mean by that is that it's very cool to have been able to watch these videos for the past couple of years and actually feel like i, and every other viewer, have been a part of the channel and somehow trough all this fame and clout YOU guys as crew have been able to hold it together and deliver us these SUPER quality videos. It's actually insane that trough these videos we viewers in fact kinda can be a part of the crew. I don't know if its the environment that you are riding in that feels like home but for me these videoes are like they have been filmed in my backyard and that's insane considering that im Finnish! I actuallly find myself recognising part of these woods like "oh now u are in the backyard" or "nice i would have never gone that mud!" I love this editing and dedication to filming and wish you guys the best from the bottom of my heart! I'm no builder myself, but i have a wild imagiation like you guys and the passion towards your projects that you project is something to be jealous of! Keep up the work and knowing US's working ethic's work just as much as you need and really focus on these things that you love! Life is too short to be focusing just on money and viewes, heart and passion is the stuff that keeps us coming back! You guys are great dudes!

I have to admit I was very wrong about how rideable this freak actually is. I never expected it to be anything but a show prop. The fact you can really ride it, and reasonably fast at that, is mind blowing. Awesome job Ethan! Can't wait to see it all pimped out and shiny! Stay frothy and confused out there in the woods and keep building cool stuff!

@4:56 I guess we got the answer if the HMMWV's survived the journey. There it sits. Congrats on surviving the trip!

I think painting the whole bike glossy black, with orange trims would look sick!

keep the DRL's for daytime and get rid of them at night, it looks like that bright white tire will take away from night vision.

I think I need to apologize for ever doubting you. That looks waaaay more fun and rideable than I expected.

This build is the best thing on RU-vid right now. I'm always thrilled to see that monster chopper thumbnail!

I love how easily you adapted to riding & Jumping your Monster Chopper seeing Brady struggle makes you realize if you have ridden a lot of ordinary bike you will struggle with what this machine requires.

Not that long ago, content like this would only have been possible through a large content producer like Warner Bros. /Discovery Channel. This is not only amazing work, but exceptional production. Great works folks!

Editing, camera work, production, platform and last but not least the sheer ability to keep us entertained from start to finish is AMAZING. Imaging pulling up to a Biker Pub with it “immediate respect “

Ethan, you are the kid I always wanted to be, now at 60 and all worn out, not having the drive I once had I sure enjoy your builds. I truly enjoy watching the Videos, I still have all of the shop equipment from my early years (15) and the shop I Sold(35) all the Tools, welders, plasma’s, mills etc. making me want to get back at it once again! Thank You!

This is so enjoyable to watch! My hat's off to you for such an amazing work. The creativity is out of this world! I am very excited to see it in its finished form.

Awesome! Really really awesome 1st video, stoked for all that is to come! 👏

This bike is WILD! What do you think we should do for paint? And talk about on the next Sent and Bent Podcast?

This just shows you how much skill you guys have at driving your machines. Not for the faint of heart.

Well, I’m eating my words. I never saw this as more than artwork. I never thought it would be functional on any level. It runs and drives, and won’t kill you in the first turn. Tips hat.

You know what? Those "useless lights" that just blast onto the tyre; put an lcd panel on them, and project guages like temp, rpm, and speed onto the wheel!

That’s cool. I see you daubing your foot down on corners when riding. Bad habit in big bikes. Remember if your foot catches, you’ll snap a bone, not catch the leaning bike. That bike, like a Harley, is too heavy for you to catch or hold it with your leg while is rolling and moving fast enough to lean it through a turn. Keep your feet and legs tucked in when moving. In the video you mention how it doesn’t hand like a dirt bike. Ta keep safe ya gotta keep your legs tucked in when in motion least you try to stop it from falling and break a leg. Plenty of stories of guys snapping ankles trying to ride big bikes the same way they do motocross or Enduros. Respect the weight of the bike. Love the videos. Keep up the awesome engineering!!!

The lights on the handlebars look good… but they’re a bad thing. Having the tire blazing bright right in front of you is not helpful to your night vision. It looks like a really rowdy beast to tame! Awesome vid, thanks for posting!

Absolutely love that Twin engine! I own a KTM RC8 with a very similar engine. Exactly what is needed in this crazy awesome bike!

Awesome and outstanding as always.Thanks for sharing and taking us along

Cannot believe how well this seems to drive. Ethan is a freaking genius!

Totally in for development of the chopper. I can’t believe it’s remotely rideable, make it awesome!!

I was sold on the concept, but you've made the concept a fully functional monster bike!!! Every episode I think "now its finished" and then you do more to it that makes it even more awesome! Having prayed for years for car manufacturers to actually make the concept car an actual reality, I'm hooked! Keep making concepts, reality and we'll be here to watch. Amazing!

I have a single sides swing arm on the REAR of my VFR. That front swing arm/articulating suspension fork contraption is inspired. You took the Cannondale Lefty to a whole new realm.

I worked as a bicycle mechanic for over a decade and did many single speed conversions. One needs one of three things; an eccentric bottom bracket, horizontal dropouts or a chain tensioner. I really enjoyed watching this revelation unfold.

I'm a retired mechanical designer and I've been following this build from your first video on it. I'm not a motorcycle guy myself but I was really intrigued with the design. I have to admit, early on I thought, "He'll never get that to run well." However, watching your design process and the testing you've done I quickly changed my mind on that and began saying to myself, "This is going to be so awesome to see once it's done." Watching you run that thing at speed and actually jump it is amazing. Are you planning to mount a front fender to keep sand and mud from impacting the radiator, not to mention your face? I realize that with that design it'd either have to be mounted to the frame and made wide enough to allow full range of motion on the wheel or you'd have to attach it to the spindle then extend it up the left side to allow it to move with the wheel. Great test on the rear fender. I thought for sure as close as it is to the tire that it would quickly fill up with mud, and I think in some locations like the Arizona Strip or Georgia where the mud is more like clay that it still could be an issue, but it does look cool! Keep up the great work.

This project has been so cool to watch!! Amazing build! 👏

I can't say enough how much I love this bike! To be there in some way, even if it is “just” through this video. It's so much fun to watch this kind of documentary, with every little improvement it's nice to see that it's an improvement. I'm excited to see what happens next.... Love for this project

The monster chopper series has been the coolest build from your group yet.

10:50 "Hexagons are the bestagons." -- CGP Grey

Awesome job!!! Just incredible!

Nice video, thanks for the entertainment! I'm sure it was mentioned numerous times in the 3K+ Comments but you needed a dynamic chain tensioner: spring action or hydraulic. (Look up motocross chain tensioners of the 1970-80's.) The distance between the countershaft sprocket and the swingarm pivot is large so the chain tension will vary greatly with swingarm position when fully compressed or fully extended. Max chain tension I believe via the videos will be at full swingarm compression? (Max tension= when the countershaft + swingarm pivot + Rear axle are inline on the same plane. Above or below this and you will get slack.) Huge tension forces and excessive chain stretch so fast because of the large inertia created from all that un-sprung weight of tires, etc moving up and down. Your shock dampener is also screaming for mercy, lol! Might of also contributed somewhat to the rear axle bend, (if it's bent "off center or out of round" vs just "twisted bend".) Good luck fine tuning your wonderful creation sirs!

It's slowly becoming the bike of my favourite superhero! "Scrap-Man!" The one that always finds the right part in the odds and ends stash!

So glad that I got to see you jump the bike, that was fantastic. As I watched the video I thought that if Ethan could feel safe enough (or crazy enough) to get up to a good speed then I bet he jumps. So once again Thank You Ethan and the rest of the Gring Hard crew. Great camera work Stephen, keep up the good work, it is greatly appreciated.

This has to be one of the best, if not the best, playlists I’ve binge watched ever. Well done, crazy build, really nicely executed 👍👍

Incredible!!!!! Glad to see it rip! Definitely another unique build, by far the craziest…. Awesome!! Jumping it on the first run!!! You guys ROCK!

Add a switch so that when the lights are pointed forward within 10 degrees L or R, the lights are off. And when you turn, they turn on. 10 degrees or more, idea is they only turn on when you're turning. ALSO, it would be really cool if you re-re-designed the bracket so that they're stationary on a pivot, and only turn when the handlebars turn past those 10 degrees L or R. Kinda like how some of our European cars (and old American) had turning headlights that remained straight unless they did a big turn into a hairpin. Also, the chain NEEDS to become a double link chain... somehow. It's so long and so much torque goes through it, that it will eventually break. If it were me, i'd see about buying elevator chain. The stuff used for the counterweight of a lift. Those are expensive, but afaik, it's super duper strong chain with very high tolerances against stretch.

I think itd be cool to see some of the failed projects you guys have made like the "one that will never see the light of day" mentioned here. It would be neat to see what ideas just dont pan out and why they didnt.

Incredible machine I can’t believe how well it works I have loved watching this build thanks guys.

I'm so happy the Ethan was able to make this thing work, when they did the first test roll I was definitely doubtful of weather it was actually going to be able to mob around on it.

I can not put into words how awesome the monster chopper is. Not only does it look amazing and badass, it also works, and it even works well. Ethan you created a masterpiece. I though the kernel would be my favorite build forever, but this Monster chopper definitely tops it and I am sure you will come up with something even better in the future.

A+ on the symphony soundtrack!

Grind Hard Plumbing Co. Making rear fenders *sketch as hell in Sandpoint Idaho U.S.A. since 2017*

I’m so glad to see this thing work so well! Nice job Ethan, I can only imagine the triumph you must feel doing laps in this thing. You had a vision looking at those two tires and a motor, and you willed it into existence. This is way more than just a motorcycle build, you created something entirely unique. Kudos Man. Love all the work all you guys do over at Grind Hard.

Even the engine sounds match the tire size. Coolest vehicle build so far.

One of my favorite parts about these videos is seeing the CAD design because as someone who is just starting out in CAD it is really cool to see the things I will hopefully build one day.

Amazing video guys, as always! With your difficulty leaning after you lowered the tire pressure, you may want to shave the lobes again, since they are more squared off because of the lower pressure. You can see it at 38:52 that they are not as round as they coud be

Fantastic project, guys. Its real functionality is a marvel of engineering. I adore it.

You should put the handle bar lights on the same plane but side by side on like a 90° angle to light up the peripherals. Might help a little more with visibility instead of lighting up the tire 😅. Love the content broskies 😎

This bike absolutely must appear in a Mad Max movie!!

Orange frame and flat black accents!! This thing is so crazy! Love the channel! Y’all are great to watch. Always a good day when a new video drops!!

y'all are super creative. awesome work.

Man, you almost need a double chain like we use on our conveyor systems at work. Super strong chain! I've loved this build from the first time you started it!!

shout out to steve on some killer cam work

valid point about the regular bike and snow bike. I simply have a 90 pound fat tire ebike.. it's like i can come to a stop and let the 26x4 tires do what they got to do on their own. A regular bike , you own it.. it is meant to be nimble and thrashed. weight versus footprint versus gyro. Awesome machine to see it running and drving.

Love your shop. Great bike.

As someone that has designed and built equipment I have fully enjoyed this build so far. Now comes the fine tuning of the design. As for you twisting the shaft I'm not surprised at all. There is a lot of torque and grip with that tire... the weak links are the chain and the cantilevered shaft.

Not only does it look cool but it rips.. that is some talent

You guys are badass. Respect to this build. Hopeful for a solid prototype 😊

This is cool man thanks for the video!!

Thanks for taking us along for the ride and continuing to show the progress on this build. It might be visually more fun to put a large old school horn, (think vintage Indian), in the central headlight position instead of very nice tire illuminators. Could be fun to make your own horn to fit the theme too. Consider a spring loaded chain tensioner, due to the rapid chain wear. At your increased comfort level, perhaps handguards and some gloves during testing are warranted? Keep having fun!

Yes! Best part of my Friday!

Of all the crazy builds I've seen in my life, in person and online. This definitely takes my vote for number 1. Anything is possible, but this does not look like it shouldn't exist or especially drive so well. Great job. Love all the builds, but this is ridiculously awesome.

That file looked like the one I did for my guitar., lots of parts. And a file. Cool work. I'm glad to see you have got it moving. 🤔👍

I would have used a spring loaded chain tensioner that tensioning the chain outwards. It would compensate for chain extention and eliminate the chain slaping on the frame. This build is dope, been a joy to see it!

Amazing build ! ! Get yourself an anvil and cross pein hammer. You will be able to 'adjust' and 'tweak' your brackets and custom parts with ease.

I do feel this is your best build! Brother, you can amaze us with what you build. Awesome, and thank you for sharing your world.

Very nice love every thing about this amazing machine. Well done.

Love the rumble and roar of the v-twin. It perfectly fits this behemoth of a dirt bike!

That bike is just like your channel, just keeps getting better. Y’all’s creativity and engineering inspires me every Friday to go create.

Nice job! For the headlights I would put some sort of proxy switch that would turn on and off the light at the right steering angle such that the lights turn on when it clears the front tire. This would bring another layer of premium fanciness !

It makes me really happy you took my advice and put a mudguard on the back 👍 the first time I watched you test it I was thinking it looked really dangerous being that close to the wheel coming towards you.👌👍💚💛❤️

Perfect for some nice Sunday afternoon singletrack riding....

That's so not fair to see the Army H1's in the front of the garage without releasing the entire trip videos 😮‍💨

Imagine being a bikerider watching Ethan drifting this monster through entire corners and then going after him and barely being able to get on the road. I mean its not like Ethan didnt have problems with it, but it must be a humbling experience!

It’s so insane to think years ago when I stumbled on to these guys. I thought their home made power wheel go carts were cool (they are), but now this!! Absolute insanity! Definitely has grown a ton as a fabricator/ builder/ designer. So cool. Keep it up fellas

That bile is soooo mad max. The vibe of it is scrappy although we all know the hella fab work. Great job fellas.

This has been my favorite build on youtube. Love it and how drivable it turned out to be.

Amazing resiliance on the build! I'm a believer

That is 1 Incredible Monster Chopper !! Love it !! 👍

Love the drone shots, awesome work guys! ❤ Sweet music too, legends!

There's nothing Ethan can't build. The guys a GOAT fabricator

Now i want to build a 2 wheel drive version so bad. This creation is so awesome.

this absolutely rules. what a gift that this is on youtube. you guys are legends

9:47 I feel like you guys could sell the planes as a grind hard chopper merch

By far, the best ' thing' you've built. Bravo

The limo moves! I was getting worried, hope to see more of it soon! Great video as usual, the chopper is truly something special!

Split the distance the chain travels by adding a secondary (middle) drive sprocket with adjustment (move up/down). The primary drive chain would turn the secondary drive sprocket. The torque your rear axle and sprocket are experiencing is why Buell used drive belts in-lieu of chains.

Watching from Kenya 🇰🇪

Number one, can't wait to see the video. Keep going guys, good job.

Coolest machine I've seen in a long time. Freaky Awesome.

Grind Hard crew, Has anyone mentioned how the front wheel looks like it has an extremely vertical rake angle? On a car it would be called caster. It may be that i am just not seeing it well. The average rake angle on motorcycles I think is between 17 and 25 degrees. More caster, or rake, is important on a bike because it increases stability and makes it easier to lean into the turns. If the angle is too steep, the bike may literally be trying to throw you out of the turn. It may have some to do with why it is difficult to control. Lead point geometry is also one of the key factors in making a bike stay upright when moving. Smarter people than me can probably expand on this info. I love the work all these guys do, and have been watching for years. Keep it up, crew! These videos make me want to get out there and build stuff!