The Rarest Motorcycle Engines - Pros and Cons

RyanF9 dives deep into the past to dig out some weird and obscure motorbikes including the twingle, grandfather clock, radial, wankel, U twin, square four, H four and the oval piston.

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Directed and Edited by Luke McAdam

[ChuckTravels]

"There has never been a faster way to ride to the scene of a massive accident"

It's genius creativity like this that makes this channel such a treasure.

[C-Henry]

I never thought our political plight south of your border could be compared to the international combustion engine, but I haven't laughed so hard at a YouTube video in ages. The perfect end to a fascinating dive into unusual engine designs.

[texduramax]

Educational and hysterical... You guys never disappoint !!

[dougmckenzie]

When I was 15 had the joy of assisting a neighbour reassemble an Ariel Square four. Now 72 I remember how cool it was, except the 2 back cylinders.

[hoilst]

"...when it was invented in 1918, the only emission people cared about was mustard gas."

That got a chuckle from me.

[icantrideslow]

7:33 "that is the environmental equivalent of shitting the jacuzzi" 😂😂😂 this is pure comedy gold

[richmotion]

Puch motorcycles were made in Austria. Here you can still see them every sunny Sunday. Spare parts are available and you can get running bikes for relatively little money. Lots of them have survived over the years due to a vivid fanbase. Very informative and funny video, as always!

[peterdeptula]

Motorcycles. Education. Humor. The trifecta of perfection right here.

[akshay-kumar-]

was talking with my dad about engine types few hours back, the timing of this video is spookily perfect. As always, loved the video

[Iowa]

You missed one obscure engine type, the turbine. Leno has one, the Y2K.

Another type, that has been used to break records, the chamber-less rocket. "Powered" isn't quite right, though. "Motivated" fits better, since it's not rotating the wheel but just being pushed. Like a warhead with a seat.

[ErikBonesteel]

Best motorcycle show anywhere... and quickly moving toward best show period... it shows you guys love what you are doing and care enough to do it right.

[GiovanniGiorgo]

I’ve never owned or even driven a motorcycle, yet I’ve watched almost every F9 video. This channel is amazing.

[Dreadnought]

Humour, physics, history, and general information all wrapped in an entertaining produces what is quite possibly the perfect 12 minutes of video

[spatchist]

These engines are the answers to all those who asked "what if we..." It's always a surprise to see how soon almost all the successful engine configurations were developed. Everything since then has been refinement, something to bear in mind when a company say they've developed a ground breaking new design .

[Hipopelusas]

Excellent presentation... nothing seems too dark or ancient to appreciate the ingenuity of modern engineering. Thanks Fortnine

[ricatiman]

I had the obscure Honda NS400R in 1986. A Two-stroke Triple - It was a light and peaky, almost fast sportbike! Coming off an RD350LC, I was in heaven. I wish I had that bike today. I replaced it with a Suzuki RG500 Gamma two stroke 4, a truly fast and scary bike - I loved 2 strokes!.

[jakehodder]

Dreamcycle Motorcycle Museum in Sorrento! An amazing destination for two-wheelers. A massive collection of bikes from across the ages. The owners are always there and love to give you a history lesson on some of their oldest bikes, some of which you may not find anywhere else in the world

[anthony]

Please don't stop making these videos, Ryan. Educational, easy to understand, and hilarious

[jtfritchie]

He’s right: you don’t disappoint. I got into channel a few years ago, before the long-buried desire for a motorcycle reared its lovely head again. It still says something that I was enjoying your videos back when I didn’t give a shit about motorcycles.

[ramonrosado]

That Honda NR got me. "The result of a decade's perfection, high technology for the new age." That goes way hard.