The Best of Single-cylinder SuperBikes! 

Ducati supermono is streets ahead imo with its counter weight directly in the crank pin where it’s most effective combined with w/c and Desmo Its a masterpiece of engineering

great bike. Yamaha built a limited production street-legal bike in the mid 1980s called the SZR660. 5 valve, dual carb, modified TD2 frame, light and fast.

AJS had a triple overhead cam 350 single in 1954 the 7R3A it had three valves per cylinder with a chain driven cam driving the intake valve and a bevel geared cross shaft running two exhaust cams.

I believe I saw this bike race at Sears Pt. way back when, smoked the battle of the twins race, looked like it would've been competitive in the superbikes!! Me and my bro were sayin' noway that's a single!! haha. By the sound of it, and now seeing it kinda is not a single, lol. Awesome bike, awesome sound

Thanks for the video. A few items I didn't know until now!

Lovely bikes, the Ducati is great but too expensive. Built my own single cylinder bike 300 lbs ( 140kg ) 80hp 56 lbft torque total cost £5000 and its great fun

Love a good single

The 5 valve Engine I thought had horribly Shrouded valves until I took a closer look . Not at all . Very high compression I would think . Both bikes are works of Engineering Art .

conical exhaust camshaft !!! 😮

So they took the regular V twin, left the stock V crank and block alone and gave the now spare connecting rod a link to hold onto so they could save making new parts from scratch. Would have saved a lot of development time and money. No so sure about the odd 5 valve design. The later Yamaha 250 & 450 engines have much more sensible '3 inlet on one side' design. I imagine the split 2 & 1 inlet design of the Ducatti suffered from either poor scavenging or inlet charge being drawn out of the closing exhaust valves. 11,000rpm would have been amazing back then, but pretty much all single cylinder MX bike are way beyond that now using simple balance shafts.

I was really hoping to see the twin crank single made with a KTM head.

desmosedici valvespringless design is ingenius, even my oxford educated cat 🐱 never thought about it..

Bimota GB1, Gilera Saturno 600....

Who said single cylinders can't sound good.

Sounds good😎

The 5 valve triple cam is really only a twin because the third intake valve is timed the same as the other two. Just to lazy to set up a decent valve gear. However it is a bit unusual for having an intake between its exhaust valves.

Stunning ,that rpm from a single,pneumatic valve actuation will be common soon .

Mototech made some duke 690 singles into what they call a ktm rc4 supermono sportbikes.. they look badass.. though ducati 550 supermonos are beautiful, they cost $150k..

What's the horsepower and torque numbers

🤘

Oops, I mean battle of the singles!!

👍👍😁😁

bad ass

🏍🏍🏍👌👌👌🔥🔥🔥

Jowo

Are these Motogp bikes?

The vibration is same as massage 💆‍♂️ machine!! Girls can use these as de##o

No wonder Ducati sounds like a tractor.

You can buy a KTM single. I should get one.

Gsxr125/150 standar revving 13000rpm kalo pakai ecu racing 16000rpm, yamaha mx king/exiter arrc / mp 1 revving 14500rpm,

No 1 not practical

it runs like shit .