Welding two bikes into one Tall Mountain Bike (and getting sketchy with it)

It has been some time since we messed around with “Tall Bikes” on this channel, but we have everything we need here to build one. So today, we’ll take two old chromoly mountain bikes and weld them together into a true monstrosity. The goal is to have a wide range of gears, front and rear brakes, and all bearings working smoothly. If we can accomplish all those things it would put this in the top 90th percentile of tall bikes, which by and large omit basic safety features like front brakes.
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[@relstr]

I've seen tall bikes before. I've seen them in parades, critical mass events, and an odd solo dude on the river trail... But I have NEVER seen one bunny hopped over a log or sent off a ramp off road! Well done Seth! Ha! That was fun.

[@drybizcuit1914]

I never saw him bunny hop a log, still sketch though. Not as sketch as my buddies tall tandem lol.

[@linsetv]

@@drybizcuit1914 well guess the next he does is welding 4 bikes together :D

[@billydoesntexist5061]

Never seen someone get so much air while getting so little air lol 😵‍💫

[@liambohl]

What looks like a bunny hop at 10:17 is really the same ramp you see ten seconds later. Still pretty sketch on a tall bike.

[@sokrebis]

It really takes a giant set of balls to do that on the bike like this. If he crashed from this height hospital bill would be tall as bike

[@yetabix4207]

What would it look like with MORE bottle cages??

[@troon5488]

Don’t get him started…

[@_dumi4451]

😂😂😂😂

[@johnpossum556]

It needs more cowbell. 😄

[@joshuaalbert3905]

Never enough bottle cages

[@JimRunarHansen]

Well there is at least room for 5 more 🙄

[@chazk5376]

"the mistakes and learning experiences were too tantalizing..." words to live by. Seriously. So many people are afraid of failing and don't know how to gain from it. I wish I learned that lesson earlier in life.

[@craftyukraine]

*This is gold, I agree with these words. 💛*

[@alfret6000]

Seth:”I cannot stress enough how this ain’t a tutorial” also Seth: “next step is…” 🤣🤣

[@Fletchiee]

Nice to see Seth trying out a large frame

[@iHasCaek]

hah, got eeem!

[@franklee6301]

Winner

[@noelmoloney8840]

Mean. 😂

[@WestonNey]

Oh noooooo🤣

[@AR0655]

LOL

[@Pwningable]

The sneaky change of the chain tentioner from the back to the frontside of the chainring 🙂

[@SethsBikeHacks]

Yep! I realized in this application it would be on the high tension side on the back. It might not have mattered but this will decrease the wear on the tensioner over the long term.

[@BenKickert]

I noticed that as well.

[@meamjustme]

saw it indeed. Was gonna be "that guy"commenting how it would make more sense at the other side. Glad i didnt since he figured it out himself. :)

[@sundayfunday5059]

I saw it as well

[@GrimZeo]

@@SethsBikeHacks let some of your buddies try it ! lol!

[@maxjax9181]

Hey Seth! I built one in almost the exact same way as you did a few years ago! Mine is sticker bombed and had a tractor seat welded to the front for an extra passenger which helped with the wheelie problem!

[@MatthewMachuDidge]

I made a bunch of tall bikes. Best mod is to extend the rear triangle, like a cargo bike. Adds way more stability, and frees up huge mid section for massive cargo loads. I used to haul loads of wood for framing jobs on mine! Other tips: Weld on some pegs down low for steps.

[@user-ob2cf2zl6r]

Hey! Do you have a way of showing me pics/ letting me pick your brain about these? Would love to chat

[@thedemonhamster]

Now Seth can know what being tall feels like!

[@BuzzGoober2329]

Don’t reach out to that dude he’s fake (there are tons of these bots)

[@thriquinox]

Report them bots

[@BuzzGoober2329]

@@thriquinox won’t do much sadly

[@derteater]

@@BuzzGoober2329 "wont do much sadly" the bot is gone

[@BuzzGoober2329]

@@derteater oh dope yeah usually those don’t get deleted, I’m delighted to hear KZbin is doing its job

[@troon5488]

Seth, I frequently learn something, and am ALWAYS entertained. Thank you for the wonderful content!

[@DinnerForkTongue]

@@repentandbelieveinJesusChrist3 Did He come to teach us how to bunnyhop tall bikes?

[@Elias_Bnk]

I second that!

[@jakecohen5739]

The look on Seth's face when he landed that jump and was just trying so hard not to eat it was my favorite part🤣

[@lenardvandermaas6893]

I've been using a bike like this as daily commute for almost a year and it's made cycling to work go from boring to being the best part of my day. It's so fun riding it, and even more fun to see peoples reactions to it. 10/10 would recommend

[@koekum2142]

I think I would bump my head under the viaduct on my commute but was already getting visions of doing this myself

[@tomfox9880]

I missed old Seths Bike Hacks style wild bikes. Hoping to see more like this.

[@BikingwithJP]

Having random fun with bikes is what keeps Seth so youthful :)

[@dylanmorrison8543]

Yep, that's why he's 5'4", it's a very youthful height.

[@Bruhman_15]

I’m so glad I watched this video 3months ago because now I’m in love with your content Best KZbin recommendation ever

[@joshuabuilds3051]

That trek frame looked pretty cool. This is the only video in the last year on this channel that caught my interest.

[@byroboy]

It looks like you could swap the middle chainring to the outside, same BCD unlike the smallest. That would reduce the gear reduction and you would keep the clearance.

[@Torchedini]

You can also put a few spacers in to prevent rubbing. When I messed with adding motors to bikes I put about 2KW through chainrings spaced out by 10mm and they were fine.

[@Kefir0]

The tensioner was on the wrong side at first, I'm glad you fixed it :) Those tall bikes are super fun to ride, and easier than it seems at first!

[@TheLando258]

Seth, you've made many great videos that have helped me understand bikes, helped my mindset on the trails, made me a better rider, and provided me with plenty entertainment along the way. However, this is my favorite video you made! Love to see you tinker, be genuine, capture high quality shots and still send it! Thank you for sharing.

[@69fml918]

i always watch seth’s videos all of the way through, because they are all different but kinda the same

[@oldshovel]

Love it!

[@noorajhan]

Hell yeah Seth, love the ideas keep it up with your crazy amazin ideas!

[@aasimmons]

Seth, if you do another one, leave the rear triangle and rear wheel of the top bike and have that wheel spin via a chain from the lower cassette and then the upper wheel can spin and do some other (TBD) job like power a small generator that would in turn power some lights and a spinning disco ball. Or whatever, just go nuts and have fun doing it!

[@purelyfixedyyc4039]

I use my tall cargo bike as my grocery getter. It's the most ridiculously utilitarian thing that I own. Tall bikes will save the world! LOL great video👍

[@ashton6263]

I’m glad your bring back the old video ideas, keep up the amazing work.

[@peterduce2818]

I love your can do attitude Seth! Looks good! Im excited to see you build a DOUBLE-DECKER FULL SUSPENSION BIKE NEXT! Maybe just do some more practice welds first, you will pick it up!

[@johnpossum556]

I think it is crying out to be an Ebike with a rear mounted smoke machine. And disco lights. ;-)

[@firefern1990]

One of my favorite videos you have put out recently! Bike looks sick! And hilarious. Hope to see it again or see you create another on the channel. Thank you for your amazing content!

[@kenneththomas3558]

Great build Seth! Thanks

[@jacobc4806]

Hey Seth, your videos have made me so much more passionate about mtb, I am now entering races, and can name every part of the bike from the ground up, love the video!

[@einovahvanen]

Checoooo

[@thatmukundbalaji]

are you the mexican minister of defense?

[@ev304]

another great video from seth at berm peak, hope to ride my bike there someday!!! looks great dude

[@phoenixGrassl]

This looks so funny but dang you nailed the video again Seth!!

[@matthewgilbert1463]

Seth this editing and video quality is so good. Love the jazz.

[@a.j.oplinger2106]

As wasteful as it would be, it would be so cool to see this done with nice bikes, 2 super nice alloy frames, carbon wheels, sram axs, fox 38, carbon cranks

[@franconianbiker2524]

NICOLAI G1 😁

[@connorcrotty1790]

Carbon frames???

[@TheWebstaff]

If you going to do that you might as well just build a 200% scale bike..

[@liamhemmings9387]

@@connorcrotty1790 he said alloy because carbon can't really be welded although you can probably stick carbon frames together by laying more carbon I doubt it would be anywhere near strong enough to ride on

[@tommyknockers5492]

@@liamhemmings9387 Mate just get some gorilla tape.

[@DavidJSWayne]

I like how Seth puts a better drive train on a joke bike than I have on my regular bike!

[@onesadtech]

This thing is so rad! Great work!

[@stopmotionpictures6021]

Awesome video, please make more like this, learn so much

[@JasonFoxLCB]

Add a front basket for Oscar to help with weight distribution. Or maybe toss Kevin in there.

[@b.s.adventures9421]

I was wondering how long it was gonna take you to realize the tensioner was on the wrong side of the chain at first. Cool build regardless.

[@ecfaulk]

One of the best videos I have ever watched. Great Job!

[@jacobkainu7757]

Probably one of my favorite videos so far of yours Seth, love the creation ones!

[@jackchow7333]

I love the videos which take us back to the origins of this Channel and Seth’s bike hacks.

[@sloapmonkey123]

Waiting for the next video when Seth puts on disk brakes, a suspension fork, dropper post, and more bottle cages. Then actually gets maimed on the maim frame.

[@zackabilly33]

I absolutely loved watching this one !!

[@malikridesmtb]

Amazing build Seth......... In my view, that's perfect for the first attempt.......Im sure you will be doing another double decker in future !!!!!! Ride Safe!!!

[@Cgehring]

If you ship that to me I dont need a manual machine

[@Fornwith]

I've been watching your channel for a few years now. Obese at 370, but man I wish I could do some downhill mountain biking. Looks like so much fun. I'll continue to live through your channel for now

[@abcpea]

just get a fat bike

[@GingerBeardMan_]

You got this! I lost a good 30-40 lbs riding my bike every day after work. Stationary bikes at home or at the gym work well to start too, especially the recumbent ones where you have back rest. Personally, I started out with a comfy seat on my bike, rode 15min, gradually increased the rides over time, your tailbone gets used to bike seats and you gradually introduce the more streamlined saddles. It's a lot of fun to ride and you can absolutely lose weight along the way. Just stay consistent and don't worry if you miss a day, just make sure you get back to it and dont let one or two bad days derail your progress. I'm rooting for you!

[@qtipextra]

This is awesome! I'd love to see more vids like this making custom creative bikes start to finish!

[@TheMichael_Ng]

Great to see a video about tall bikes again!

[@themostlymikeshow2582]

Nice job Seth and cool idea. I had a feeling that it would be "a little playful" when you first climbed on it. The seat was almost over the rear axle. Maybe an offset seat post and a super long stem?

[@themostlymikeshow2582]

@WhatsApp⓵⓽⓵⓺⓽⓽⓸⓺⓽⓵⓶ I don't know what to do. 🤷

[@mynamesnotimportant6941]

@@themostlymikeshow2582 ignore it it's just a scam 🙂

[@themostlymikeshow2582]

@@mynamesnotimportant6941 I kind of figured it was a scam. I wonder what they get from that.

[@BirdmanDeuce26]

The overall geometry reminds me of my folding bike, what with the wheels being that far away from you and all. Maybe a "full-size" folding bike attempt next?

[@williambeckham3447]

It’s nice to see you trying a size large bike!

[@robertbielser5994]

Seth, you are a madman! Doing Berm Peak on that, WOW!

[@jtrider3779]

It was at 3:32 that I remembered… Seth was a tech guy, not a welder 😂 Just busting your balls, man! 😁

[@shadowhunterevil8214]

Seth, you are a Sketchlord and i love you for it!

[@darek8408]

Nice job👍 First time I saw such bike was in Vancouver in 2010. I found it as a brilliant idea. Still thinking of having one here in Poland.

[@ApocalypseSoldiers]

Hey Seth! 2:53 you can see that you mark the front of the threads instead of the back to make the cut. then by the next scene you weld it at the end, making it longer then you wanted by the length of the piece you welded on. Hope this helps on the next double decker bike for when guest want to ride with! Lol

[@Sebasolerc]

Thats amazing. You should try a longer stem to lean your center of gravity just a little further so it doesnt flip backwards. Thanks for your whole Channel, i can't express how much fun I have watching your videos

[@SvenDansk7]

I was thinking it would also help to use a large frame bike on the bottom, especially for us short riders who will need smaller geometry on the top. Maybe a little gusset for wherever the top BB ends up.

[@Ianmathews131]

Hi Seth. I’m going to berm park this fall and can’t wait. Amazing video!!

[@ape337YT]

Lucky you:(

[@sendyboi7028]

@@ape337YT the climb sucks

[@ape337YT]

@@sendyboi7028 at least he can go there:(

[@williamsweet7511]

awesome, looks like you had fun with this project

[@nichdiekuh]

Pretty Sethisfying build 😀

[@Lucamx5]

Hi I have been following this channel for so long I really love you’re content it’s exiting like when I see you have posted a new video I get exited to watch it ok have a good day ps I would love if you Pined this comment it would make my day

[@Orionas_Sk]

Now put a dropper and clipless pedals on it 😂

[@ape337YT]

Oh god

[@Orionas_Sk]

@@ape337YT what could go wrong

[@ape337YT]

@@Orionas_Sk nothing :) he should do it...

[@zero_whips]

the fact you took it though those ramps and jumps terrified me! Love your content! ❤️

[@heyduff]

Very entertaining...easy quick fixes, move the seat as far forward as can, maybe the seat post can install backwards, putting you forwards? And then add a longer stem...what a hot watching you ride it!

[@FranciscoPerez-qt7eg]

TALLBIKES 305 LETS GOOOOO!!!!

[@niwrad84]

As Sam Pilgrim would say: Like a Dream!

[@COOLCABMAN]

Creativity at its best.. Amazing.. Loved it thanx brother

[@stuhall6771]

Look at you welding!!! Nice work bud!

[@caseybechard9562]

Instead of water bottles in the bottom triangle, you should put weights to keep it on the ground. Be careful. If you let someone heavier than you ride this, they might flip the bike backwards.

[@alixgarot7458]

Imagine your a delivery driver delivering a box components box for the 200th time of the year and you just see Seth on a bike that's almost as tall as him doing wheelie's while Oscar is running around him like a madman

[@ProfessorThock]

This video was awesome! Nice job Seth! I would love to ride that thing around LA

[@bananaberrylemon6316]

Great tutorial!

[@Ohio_etsu-masu]

i'm very in the middle between "there are enough guys on youtube building dumb shit" and "Seth's so cool he can do anything and i'll watch it, awesome he dabbles in stuff and that came out cool" feel like you could have made it into a much longer video, or a series? next up you'll try 2x2 wheel drive?

[@ezehslyvia2893]

Amazing video and thank you for l breaking it down!! Despite the economic downturn, I'm so happy😊 l have been earning $ 60,000 returns from my investment every weeks.

[@ezehslyvia2893]

@Anthony Margaret I trade stocks and cryptos using the strategy of Regina Jossie

[@elizabethkaanhel3735]

I heard a lot of investing with Mrs Regina Jossie and how good she is, please how safe are the profit?

[@christophersusan5874]

@@elizabethkaanhel3735 I traded with her, The profit are secured and over a 100% return on investment directly sent to your wallet.

[@anthonywilliam4457]

I'm just an extremely grateful subscriber who has made nice money with her trading strategy

[@brittanykayla5990]

Wow, i've seen a lot of recommendation about Regina Jossie, is she really that good?

[@stujm8376]

Excellent, another fantastic vid. Though I’d be scared of doing what you did on it, respect for that.

[@colestroh9468]

as a fabricator/welder by trade, and a mountain biker. this was amazing to watch lol, im inspired to make my own tall bike now!! great job

[@kevinpeters8372]

Probably one of my favorite videos to date🤘🏻🤘🏻

[@The8BitNerd]

The long awaited return of the tall bikes!

[@gelonatividad]

seth with a really big brain..nice one man!!

[@pokeypaul78]

Very cool! I've never seen anyone ever jump a tall bike. I'm glad you swapped the chain tensioner to the non tension side.

[@denishuber7758]

and just if you thought you have seen it all.. seth steps it up, by throwing a double decker bike down the hill.... just amazing....i want to see i next video... how to wheely that moster....keep up the nice work... greeetings

[@derrickrides6530]

Awesome build.

[@artboytidwell]

This is quality entertainment... You rock!

[@LnboRS]

Bulit a few of these in the 80's when I was a youngin'. What a blast!

[@mymorristribe]

Old school Seth! Nice.

[@Themagoo]

The entire video I was fearfully anticipating you taking that on trail. All I can say is wow. Must have been quiet the feeling jumping that beast.

[@sheldonh200981]

Your crazy man! love your channel!

[@beanpod7]

Thank you for making these great videos! Seeing you jump off a ramp and log on a tall bike was amazing. 😮 I did learn something today and I absolutely find your videos “at least entertaining”. 😉😁

[@bozobebop5859]

That’s so bad ass, props 🤘

[@adampacchiana5370]

Using your superpowers for good! Way to go Seth. So much fun.

[@MrGmaloq]

Currently building a tall bike myself, perfect timing!!

[@kaisersozay2217]

That was such a cool experience, both for me and you (im sure). Great idea. Thnx

[@andyheilmann1656]

It feels like you got back to your roots a little bit here Nice!

[@DouglasFenwick]

Wow! Fantastic video. :)

[@vivianfaithfull4748]

Ballsy air Seth! Skills on show!

[@julienriegel8246]

Love these vids where you build, creates, try new things! It’s awesome. Ok here is an idea, move the back wheel further aft so it doesn’t wheelie as much in climb. 😅 Thanks for the entertainment!

[@thomasm5899]

Great video Seth, this one was a hoot!

[@Bjorn_R]

Absolute mad lad doing those jumps at the end!

[@drumbrakes]

6:02 - I'm telling my laptop he's got the chain tensioner on the wrong side of the chain! 7:02 - He has sneakily moved it to the front. Thanks for listening Seth. There's not many KZbin creators who go to the trouble of responding to verbal feedback within one minute, but nearly 2 years after the video was first posted. That's dedication!

[@bernur]

welding tip for the staerer tubes. if the frame is made out of steel, put a aluminum tube that fits true them. it wont weld together and that way you don't need to measure as much