This gentleman deserves a major award for his engineering work!

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

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!!

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

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

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 👏 ✔

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! 👏👏👏

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

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

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.

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.

Absolutely brilliant! Man's a total genius!

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

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

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!

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

Amazing!!! He’s a real engineer!

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

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

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

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

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.

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

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

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

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.

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

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

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

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

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

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!

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.

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.

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!

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!

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

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!

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

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

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

Insanely cool!

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.

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.

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

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.

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.

Makes the Millyard look rather plain and simple. This bike is a museum piece, for sure!

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

Excelentní práce, strojařina nevymřela. Palec nahoru

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!

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

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

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

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

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.

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

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

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!

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

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...

Потресающий проект, просто нет слов. Очень необычно. 👍

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

I hope you enjoy the happiness your effort and determination has brought to the world dude..... What you have created is just out of this world. Insane. Your engineering skills are incredible.

To jest nie samowite gratulacje jestes mistrzem nr1 pozdrawiam z Raciborza

Absolutely brilliant. Love it.

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.

An amazing piece of fabricating, machining and fitting. A true mechanical artisan.

Beautiful piece of art!!

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.

*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...

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

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.

Coś pięknego. Szacunek dla twórcy.

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

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..❤

Merveilleuse mécanique ingénieurs formidables surtout pour l’époque de véritables génies bravo 👏👏👏👏😘

Absolutely brilliant 👌🏼

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

Simply INCREDIBLY !!! Love it, what a achievement. What a imaginative and skilled engineer. 👏👏👏👍😎

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

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.

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!

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!

Cudo,piękna fachowa robota,pozazdrościć

Preciosa moto y excelente restauración. Gran trabajo amigo!!👍

What an amazing tribute to the spirit of uniqueness - Thankyou - England salutes you!

Amazing craftsmanship!! Truly amazing! I have total admiration for the skills this man demonstrated.

Krásna dvojhviezda.

Dost dobrá práce!!!!! Krása!!!!

Czech engineering brilliance! That's just amazing, the bevel gears in the crankcase is fantastic problem-solving, sounds unique!

Amazing, good looking vintage bike with an unique engine and a really nice sound!

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.

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...

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

Quite possibly the most awesome motorcycle ever built.

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

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

A truly astonishing experiment. I love two-strokes

Veľmi dobrá práca 👍