Bistella 500 - 10cylinder radial Twin-Star 2stroke custom motocycle

[@rogerlawrencewhite1475]

This gentleman deserves a major award for his engineering work!

[@harrytazzia4133]

For sure!

[@erhantomekce5252]

Yes, but he engine is a polluting devil

[@loddude5706]

I feel this gentleman deserves at least one of Tracy Millyard's cupcakes . . . do hope Allen's seen this : )

[@andreasivarsson9518]

@@erhantomekce5252 I doubt he drives it that many miles a year though...

[@datadavis]

@@erhantomekce5252 oh come on.. its a cool custom motorcycle. Commercial traffic is the polluter, especially marine traffic.

[@layneannen]

I'm a 72 yr old female watching this because my boyfriend sent it to me. He has been doing this kind of work since he was 8 years old, we wish more young men would get involved in this type of work! We are so proud of you sir, keep it up!! Keep learning!!

[@RobertR1200rt]

The mathematical ability to do something like this is amazing. Not to mention the mechanical ability. Excellent

[@Trevor_Austin]

This is a standard and style of engineering would certainly impress Allen Millyard.

[@shawngoldsberry747]

Allen will stack stars

[@2WHEELSor2WINGS]

I hope Allen has seen this. I am positive he would appreciate this machine greatly.

[@johnhenke6475]

The dude did his own paint! All around master craftsman.

[@IBIZABIKE]

Imagine a joint project !!!!!

[@shawngoldsberry747]

@@IBIZABIKE it's hard to tell what those two would come up with if you got them stoned.

[@andrewspence3171]

This young man has many skills. The idea of 10 cylinders, in a radial engine, and supercharged, would stop anyone else from even starting this project. He succeeded, and the result is just fabulous ! The sound is unique, it goes well, and the finished paint and writing is super too. Maybe a big company will employ him to design a new space ship! Well done, Marek, and best wishes from England.

[@gawcba]

Lo diseño el? Solo se ve un video armandolo pero es diseño del propio q lo esta armando? O era una marca de motos q comercializaron muy pocas?

[@postoffice146]

Supercharged? Looks like a carburator to me?

[@Eltigrito71]

El sonido es una cagada

[@potrzebieneuman4702]

@@postoffice146 those interleaving things you could see through the holes in the side of the engine are the superchargers, something similar to a Rootes supercharger I think.

[@g8ymw]

@@postoffice146 It's a 2 stroke and as the sump is not available for the induction, he has to use a supercharger (several in fact) The air goes through the carb and onto the superchargers I'm surprised he's using slide carbs and not butterfly carbs with a supercharger

[@davidperkins605]

My God, what a talented young guy, I'm lost for words, absolutely fantastic.

[@lpd1snipe]

This is just one more reason why I love this channel. You see stuff here you never see anywhere else!

[@3in1Machining]

This project is so unusual I find it difficult to comprehend how you imagined it would work in your head before you started the project and machine all the components. Amazing, well done 👏 ✔

[@marekfoltis8293]

Thank you Graham

[@AllanOhare-wx3wr]

​@@marekfoltis8293brilliant!!!

[@johnherbertsa]

Your 10 cylinder radial 500 is a work of art! I must congratulate you on an incredible job, not just the engine which is a huge challenge by itself, but the whole bike just looks fantastic! I build custom things myself and understand the determination and perseverance that it takes! 👏👏👏

[@heinz-dietersindhoff7344]

I can't say anything else but:wow!!! You must be the new Leonardo da Vinci, a Genius mix of engineer and artist

[@johncorlett3699]

the inlet and exhaust manifolds certainly are...

[@Marek_Bogdanowicz]

A wonderful, beautiful machine. Respect for the owner for the reconstruction. Greetings from Poland!

[@ferenccsabatoth4886]

I cannot find words. Amazing. He used a Jawa Perak 250 frame, isn't it? Fantastic. He is one of the most taletnted engineers in the world! Congratulations!

[@57dogsbody]

I am totally blown away by this project. The work that must have gone into building it is really incredible, and the brain power needed to figure out how to design the whole thing is on a superhman level.

[@tonysargent1699]

Absolutely brilliant! Man's a total genius!

[@edilsonmartins6653]

Sim.

[@autodidact537]

All he's done is invented an incredible leg roaster. LOL

[@MRKIZZY17]

A genius,an artist a man of many talents I raise my hat to you sir.

[@wojpyz]

Omg. What a great engineering! This young guy deserves a Nobel prize!!

[@arthurwagar6224]

A man who knows what he's doing and does it with great skill. A pleasure to watch. Thank you. Great sound.

[@frurad]

Koukám s otevřenou hubou!😲 Neskutečné,co jsi dokázal!A ten vzhled ,lakování,taky velice pěkné! Zlaté České ručičky!🤲

[@George-vf7ss]

Ditto...

[@heppisaxm8316]

Der Mann ist ein großes Genie mit einem Superhirn und sehr viel Ehrgeiz

[@DIY-valvular]

That bike is not only an amazing piece of engineering, is a piece of art too! Also I wish to thank Marek's inspirational words at the end of the video. I am not a motorcycle builder, but a DYIer "a ultranza", and sometimes I fall in the temptation of dropping my projects when they become temporarily frustrating.

[@СергейКлим-ъ6ъ]

Такого я ещё не видел, это что-то невероятное, я полтора года Яву старушку доводил до ума, а тут такое.

[@eddytheman1384]

Bike is absolutely beautiful and the mechanical skill of Marek is mind blowing ! My deep respect Marek ! all the best and enjoy the ride!

[@charliebailey2359]

Love everything about this! Using superchargers on a two stroke when you are not able to use the crankcase as an air pump is pure genius. The note at the end was very well said and I needed to hear it!

[@armandojosemario2645]

Marek ... All of my respect is yours! True engineer you are! Good job !

[@marekfoltis8293]

Thank you Armando!

[@craigewing3054]

At first I thought this was showing breakthroughs in animation, but no it’s real and amazing. I like the multi carb version but I understand the single carb update. Thanks very much for completing this mind bender of a motorcycle.

[@asenradev464]

Amazing!!! He’s a real engineer!

[@Ralph2]

This young man is another Allen Millyard! What an amazing demonstration of dedication, determination and engineering skill. This bike alone should be your ticket to a long and successful career at the top of the engineering tree Marek Foltis.

[@marekfoltis8293]

thank you

[@ramishrambarran3998]

The work of extreme genius. In the league of Allen Millyard and Le Dan !

[@Whitejesselink]

Looked up the other guy just now, at first I was think idk... But then I saw he made a 200cc twin with 270° crank. Yeah okay that's amazing too. Probably sounds epic.

[@MRKIZZY17]

Millyard is not in the same league ! Marek is a true genius.

[@ramishrambarran3998]

@@MRKIZZY17 Of course, each is entitled to his opinion, you included.

[@MRKIZZY17]

@@ramishrambarran3998 Yes I agree with you and we all have our own opinions 👍

[@rinivanderlee6460]

Correct what you write.. When these 3 guys coppeld toghetter...than will be the technical world overruled ..in amazings things.🤔🤗 the modern Tesla's Greetz from Holland.

[@shawngoldsberry747]

That is an accomplishment few individuals could achieve. I give this man a 10.

[@creepingjesus5106]

It's just stunning. He's done what many people would dream of (myself included) and get nowhere near. But it was the tiny blower for each cylinder that wowed me the most! I can see why a blower would be advantageous, but most people would just mount the one...

[@charlesfriend9557]

@ Ross Neil. Supercharging is mandatory on this engine, as it creates no crankcase pressure of it"s own. But I expected one large blower myself, rather than five miniis! Awesome build!!!

[@creepingjesus5106]

@@charlesfriend9557 Yeah, that's what I was thinking. Couldn't see where scavenging pressure/vacuum would come from, so it had to be a pressurised case, like Detroits and Napier Deltics etc. Given where the tiny blowers are, it must have isolated oiling for the crank too, like a Detroit. Come to think of it, I admire the sheer bloody mindedness of it! Little two strokes are one of the simplest engine designs ever, and then...🙏

[@DetroitFettyghost]

Holy smokes. The attention to detail and the mini blowers and all the work put into it- absolutely beautiful.

[@MegaPoxie]

Absolutely brilliantly made, it looks like something out of a factory!

[@wynandvanreenen2612]

That is one of the coolest builds I have ever seen! If I was loaded with cash I’d buy it in a heartbeat!

[@monsieurcommissaire1628]

I thought it had to be a typo. How can such a thing be possible? But then I remembered what channel this is... Amazing- a radial with 10 cylinders in two rows of 5 each. Outside of WWII aircraft, you don't see anything like it! The sound, I must say, is absolutely beautiful.

[@geuros]

This Czech guys is just awesome. I read an interview with him (I'm also Czech), he explains everything there and he's so humble. For example he chose this bike to modify because he wanted to make his creation road legal, so first thing he did is he studied the laws regarding the modifications of vehicles and found out it goes by the laws of the year the original bike was produced. Which in this case is 1950s. So he is legally allowed to take one part of the bike and modify it - that would be the engine for him. But what he couldn't do is touch anything else - brakes, frame, lights, forget them, they have to be original. I'm glad there are so many people in the comments section praising this guy's achievement because it is honestly a modern day miracle. Bravo Marku, jestli si to přečteš, co jsi dokázal je neskutečný a doufám, že budeš inspirací pro další mladé šikovné lidi, aby se nebáli pokusit se dosáhnout svých snů.

[@jayjackson597]

amazing from every element of it's construction, what a design masterpiece!

[@Rudyikotyk]

Це неймовірний винахід, як таке можливо вигадати і вкласти у голову. Геніальна людина! Шедеврально! 👍👍👍👍👍👍👍👍👍

[@williamsutton660]

In a perfect world people like this should be recognised and milked for every bit of there knowledge. I would say 1% of the world population would be able to pull this project off. Unfortunatly far too much focus is on sports stars and rappers.

[@jaylittleton1]

Marek, I am in awe. I praise you for staying through to completion.

[@peterstephenson4935]

I really appreciated your statement at the end of the video, so true, and I am sure it will inspire others to complete their projects as you hoped. Someone once said to me "The quickest way to get a job done is to start it" , never a truer word spoken, I find myself applying that idea all the time. You have done a very fine job applying your engineering skills to create that most unusual motorcycle.

[@TT.Hell.]

I love this kind of builds! Its not about money, its not beeing the fastest or anything like that. Its just so cool! I guess there are many people out there who enjoy the build and when its done you just have to get another project!

[@DustinTjäder]

I’ve been reading bike exif for 10 years and that is cooler and more original (and beautiful) than anything I’ve ever seen. Absolutely legendary.

[@montananomad5382]

I am so glad that you never gave up! How thrilled you must have been at the first start and first ride! Congratulations just isn't a strong enough word!

[@piccalillipit9211]

*THIS NEEDS TO GO ON TOUR* around the world, it is so unique, it needs to be at exhibition centres etc for people to truly enjoy it...

[@quintinlindsey7967]

Wow this man is a mechanical genius, the engineering that went in to making this engine is absolutely genius!!!

[@eddieisenfuss2265]

Wow, there is so much work and brainpower inside... unbelivebel! Thanks for sharing.👍

[@jeandupont2866]

Wahou! Wonderful! I am on my ace! It is very beautiful! Marek is a real mechanic. A noble mechanic! I am really impressed! Respect!

[@Arnauddefrance]

Ce gars a assemblé ce bijou tout seul dans son garage, sur des cartons et de vieux draps....mes respects Marek, vraiment, c'est une des plus belles réalisations que j'ai vue depuis bien longtemps....moi qui n'aime pas l'argent et qui n'en ai pas... pour une fois je me suis dis "bon sang, si j'en avais un peu...j'irai voir ce gars, lui en demanderais une pour finir mes vieux jours en beauté sur cette belle moto"!....

[@craigywaigy4703]

What a fantastic feat of engineering and machining, but also of styling and coachwork/paint!! WELL DONE! BTW he actually built FIVE Superchargers for that beast, and not just one!

[@nigelchapman1291]

Fabulous engineering. You are a credit to motorcycling and your country. You are a very clever chap.

[@dusanmracko9432]

Jednoducho zázrak a geniálna konštrukcia.Zaslúžite si hlbokú poklonu za toto fascinujúce technické dielo .👍👐🙋🏻‍♂️🇸🇰

[@tedbaskerville538]

Wow, What a machine! I love the way it sounds, so crisp and responsive. Beautifully engineered with high craftmanship. A true artisan at work here. Bravo!

[@CaptHollister]

The technical prowess of this young man is very impressive, thank you for posting this. I see he didn't use poppet valves for the intake, so I guess the supercharger blows straight into the intake ports. On a side note: it took me a minute to figure out that by two-star you meant a two-row radial, different languages use different terminology so translation is always tricky. I always tell my students that Italian is not French using Italian words.

[@gerrydepp8164]

I'm only half guessing (I need to see it again) but I think the supercharger is pressurising the entire crankcase/primary compression -couldnt believe my eyes - alien technology - I am in awe...

[@CaptHollister]

@@gerrydepp8164 I don't think so because in a two-stroke with crankcase induction each cylinder requires an individual crankcase volume that is the same as the cylinder displacement and is sealed off from the other cylinders, this simply doesn't appear to be the case here. Another way to feed a two-stroke is to fit it with a blower and a poppet valve in the head, which is also not the case here. That leaves the third way: a blower that blows into ports near the base of the cylinder, which seems to be what this gentleman did.

[@tonym480]

@@CaptHollister I agree, it looks to me as if the blower feeds the transfer ports. Would be very interested to find out more about it.

[@TexRenner]

"The purpose of the whole building is to show that it is possible to complete any demanding project in the garage and in limited conditions, if a person really strives with the whole heart and spirit to make his dream a reality." You either underestimate your genius, or overestimate that of the rest of us.

[@jimilite]

Absolutely Brilliant. People like you amaze me and I love what you have done, a truly unique and ingeneous concept that is now a really beautiful bike. I am so glad you finished it and shared it with the world here.

[@marekfoltis8293]

Thank you Jim!

[@claiborneeastjr4129]

The engineering skills of this guy are beyond comprehension. THat is an amazing engine and seemingly very complex. What a work of art, and mechanical expertise!

[@andrewhall2554]

Wonderful! And not just amazing engineering, but beautiful artistry as well.

[@966396631]

If there was a Nobel prize for custom motorcycle builds, the vote would be unanimous. Jesus what a genius work of art!!! Typical Czech creativity and work ethic!

[@oldshovelhead]

Absolutely amazing build! Love everything about this one - IMO the frame is perfect, love that style frame and coupled with this amazing engine you've built she's truly a beautiful piece of art.

[@lost68er1]

WOOOW! That is engine construction as a form of art! I was already fascinated by the motorcycles that were built in Italy in the 60s and 70s, with 500cc six-cylinder in-line engines .... But the BISTELLA is more beautiful than a Swiss watch! Absolute upper class!

[@jnbreton4560]

A master piece of work, knowledge and skills. I guess few mechanical engineers could do the same on their own.

[@TheViking2008]

OMG and I thought the RD500 was cool,this is another level,absolutely brilliant engineering.

[@alexbut9487]

Потресающий проект, просто нет слов. Очень необычно. 👍

[@SuperDiddzz]

Am totally gobsmacked!!!!!!! Never seen anything like this before. People like this should be noticed and applauded no mistake. Thank you for upload sir.

[@2STROKESTUFFING]

Insanely cool!

[@tanyathorvilson]

I don't know what's more insane. The engineering it took or the sound it makes.

[@RT10Viperman]

Right..!? LOL...Dont get any ideas..! Worlds fastest 50cc motorcycle is in your future...!!!

[@ronfox5519]

Cool and inspiring.

[@massmurdererkis4977]

@@RT10Viperman jawa mustang :)

[@ultimobile]

yes - insane is the first word I thought of too unique - you neek !

[@johnhenke6475]

Fantastic! Complicated as hell, but fantastic! I love these guys who are way smarter than me who can figure all this stuff out.

[@andygna2281]

To jest nie samowite gratulacje jestes mistrzem nr1 pozdrawiam z Raciborza

[@terryrobotham2762]

Great engineer, great fabricator and great painter all in one.

[@marekfoltis8293]

Thank you Terry!

[@noahwail2444]

WOW! I am utterly impressed, and that takes some. What a stunning result, you rearly thourght out off the box here! Respect.

[@ricardosadowski9321]

Una maravilla la restauración. Y el que ideó y fabricó o fabricaron esta obra de arte ni hablar ... Excelente video.

[@1954Antony]

OUTSTANDING. Loved it and the way you integrated the supercharging was brilliant!

[@jorgefernandez-mv8hu]

That is engineering and technical ability on a whole new level. That is a scary smart individual. It is a work of art. Beautiful!

[@russbilzing5348]

What a stunningly lovely machine you have created. As is is, it gives me goosebumps to think of how it must accelerate and the smoothness of the engine is easily evident. I was pleased to see how elegantly you solved the need for supercharging, though I'm aware that it would be difficult to get the gearing just right. Sir, this is a marvel,right here. I imagine that you can taste the satisfaction that it brings you. Salute.

[@bobmurray3229]

Bravo ! You are a genius sir . Beautiful bike, insane engineering. Love from NC, USA

[@marekfoltis8293]

Thank you Bob!

[@maximinoestalilla1852]

This is an amazing and brilliant, most complicated motorcycle build I have ever seen!!! You are a genius!!! 🔥🔥🔥🔥💪💪👋👋

[@wulkan5004]

My full appreciation for your unconventional and beautiful engineering work. Best regards from Poland.

[@haraldpettersen3649]

This is a mechanical work of art. Fantastic is the word. Edit : I would definitely like to try this technical masterpiece, but I do not think he lets anyone do that.

[@greatone777j]

Extraordinary piece of engineering. Bravo on the the overall design as well.

[@LeBator]

Incredible engineering and most of all WILLPOWER. ✊Thank you for this video.

[@TheVitall]

Да ты волшебник! Теперь я знаю кто изобрёл " швейцарские часы "

[@RETSAERETEP]

This is the most impressive home built engine I have ever seen and it is the first engine I know of with a vertical crankshaft but horrizontal gearbox shafts. However, such an engineering masterpiece deserves a better frame, suspension and brakes this one looks like it is from a D1 oD3 BSA Bantam. Great paintwork though.

[@Whitejesselink]

Allen Milyard needs to see this one. Totally wild.

[@MyZxcvb12]

@@Whitejesselink That's what I was thinking

[@besenwieslersepp1011]

I think, the Sachs 502 Wankel MX (not the W2000) had a vertical crankshaft and a usual gearbox too.

[@petrsindler1525]

It is all jawa parts. The chassis looks like 40s/50s jawa 250

[@acajutla]

I think the late 40s - early 50s look is perfect, very well composed. At first I thought it was a genuine oldie.

[@guillermojudt2095]

Caballero, es usted un artista sobresaliente. Mis sinceras felicitaciones. Lo suyo es ARTE.

[@johncunningham4820]

Beautifully thought out and executed . I suspect the Primary Bevel may be problematic in service however .

[@kensylvester7592]

As a journeyman tool and die maker, I am beyond words, you've done a very tedious job, and a job well done. I'm blown away with what you've built. And you end comment is spot on

[@johnnygeorgopoulos4072]

You should check out this, I believe Chinese guy who takes a bunch of discarded random broken engines, cuts them all apart, and builds crazy engines and bikes with them.... he's built a V4 out of 2 different engines, one 4t and one 2t engine and made a really good running 2t, a bunch of dual cylinder and triple cylinder 2t's and 4t's....all with just random engines he buys from like a little junk pile in a back alley... dude's crazy 😵‍💫

[@larstragl146]

That machine is just amazing. The details with gold leaf and stuff are absolutely lovely as well, what a beautiful bike. I wonder if there's a chance to get it registered...

[@denmar355]

Very impressed with both your ingenuity and your persistence to complete the project! Well done!!

[@martinduffek5509]

Excelentní práce, strojařina nevymřela. Palec nahoru

[@skyfreakwi]

I was having serious second thoughts about the V12 I have been planning on building but after seeing this... Wow just wow!!! Seriously impressive. I used to have a bunch of Puchs and Jawas back in the day, even a a Zundapp or two. (Kinda rare I'm the states) These are such beautiful bikes. You just made it ten times better!

[@kamilcermak8538]

Máro, super práce!!!! Píle, nápad….!!! Good job my friend, I am really happy to know you personally 😀😀

[@marekfoltis8293]

Děkuju, brzo ji uvidíš na živo Kamile :-)

[@PPekka]

This is the most awesome thing I´ve seen in a while! Hell Yes! And that sound is awesome!

[@shug831]

Mad Genius at work, absolutely stunning. To see the concept of that engine before starting the build was fantastic.

[@stratocaster1greg]

Sir you are an absolute mechanical genius. Thanks for sharing!

[@cygnusatratus6004]

Beautiful piece of art!!

[@Gkuljian]

What?! This is the best thing ever. And I thought putting a Datsun alternator on my Norton Commando was a big deal. This is actually incredible.

[@slacker2101]

Absolutely brilliant. Love it.

[@jiyushugi1085]

Incredible! For those new to Jawas, they're the only motorcycle in the world that have the kickstarter, shift lever and clutch all in the same lever.

[@fettlerjohn3419]

Absolutely brilliant 👌🏼

[@paul8161]

Wow...I'm Sat here looking at the video of the engine build open mouthed at the level of detail in the wonder that's the engine alone...the paintwork is a joy to behold...beautiful....the way the exhaust pipes snake around the bike so effortlessly is amazing..the bike sounds beautiful to..❤

[@valdecyoliveira100]

Muito interessante e criativo. Aqui no Brasil um mecânico chamado Riva construiu também uma Honda de 600 cilindradas a partir de quatro motores de 150 cilindradas. A motocicleta é chamada de Riva 600. Parabéns pra vocês!

[@csj9619]

Now that is one interesting piece of engineering.

[@jarosawurbanski3086]

Coś pięknego. Szacunek dla twórcy.

[@skippmclovan1135]

Creative genius is one of the human unique characteristics. We all share varying degrees. This guy's share maxes it out by at least 111%. He is up there with the greatest we have ever seen, surely!