Bikes

Here are some bikes I never knew existed I knew Suzuki made the RE-5 but never heard of these very early rotary's......enjoy
The only 3 bikes with radial engine Ever Built - YouTube

I"ve been a Harley guy since 1971, but those are just cool.

those wheels & tires don't look too impressive for a motor that size! :move eek:

Kinda makes my Softail Deluxe sound like a moped.
If you think about it, why wouldn't somebody try a radial. Every other internal combustion engine has been tried on MC's Including a small block Chevy.

Radial engines are just fabulous! The sound is very distinctive. Completely bonkers in a motorcycle though:thup:

Wonderful motors!
My favourite?
V2, 90'. Imagine where they build them;-)

These of course are radial engines not rotary (Wankel) like the RE-5. Beautiful but impractical in a motorcycle. The rotary was also used by Norton and DKW in motorcycles, also not very practical. I had the pleasure of rebuilding an RE-5 Suzuki engine in the early eighties as a favor for a friend. It was not an easy task for someone only intellectually familiar with the design, no prior hands on. It had good power for a 500cc engine but got terrible gas mileage and in my opinion an unattractively styled machine with its tube shaped instrument panel. A fellow was showing a restored Megola radial motorcycle at a show in the Tacoma Dome. Stunningly beautiful and equally expensive. Best. Tom

Remember the old round loafs of bread we used to get that's what the dash reminded me of a friend has a RE-5 in his collection bit like was it the CX 500 Honda Turbo well before their time but the market was not ready for it.
At present there is a Hyabusa on E Bay/Au fully bombed & turbo'd 400BHP the thing is an 8 second bike for the 1/4 mile asking 20K not for me.

And the other end of the spectrum....

HELICOPTER Engine motorcycle! - YouTube

Just when you thought they could not get any faster (Drag bikes) here is this thing the drawback is your arms stretch 3" every time you do a pass.

In WWII the Germans tried to utilize Hydrogen Peroxide for a propulsion system in a submarine they could not get it to work properly they were called Walther Boats..
But in testing they did with the craft its under water speed would rival a USA attack subs which they are purported to do 50kmh under water but probably allot faster I'd say.
There were a few weapons the Germans had that if deployed properly with out H*tler fiddling would have turned the course of the war namely the 262 Jet and the Type XXI U-boat.

Anyway here's the "Rocket Bike"
ROCKET BIKE -The Fastest Motorcycle on Earth !!! - YouTube