2 Minute Moto - What Is A Crossplane Crank?

2 Minute Moto - What Is A Crossplane Crank?

You might have heard of crossplane cranks, or maybe even heard the nice sounds they make, but why is a crossplane so special. Lemmy explains the unique construction and properties of the crossplane crank, as well as his reasoning behind his critique of a certain manufacturer’s use of the crossplane concept. Next time you’re talking engines, you’ll be in the know as far as crossplanes are concerned.

[Dmach]

Liking the red shirt youre wearing underneath

[harpersneil]

Big fan of these type of videos. Lemmy is just plain likeable; you can't help but enjoy listening to him!

That bikers tan line is savage though!

[rodrigodelafuente]

The fact that the lesson starts at 0:32 and stops at 2:32 makes me wanna hug you Lemmy.

[jonathanbarker]

10% of comments: cross plane blah blah blah

Everyone else: Lemmy's sunburn! 😂

[olli_k]

Love the rider's tan, Lemmy. A sure sign of someone who puts miles on their bike.

[salvatoredigrigoli]

Lenny You're a God no one has ever explained it so simply keep up the awesome work👍👍👍👍😁😁😁😁

[forrestculver]

How do you get the burn lines so perfect?

[FranBunnyFFXII]

Cool. now do Radial(Harley and SnS) vs Offset(Everyone else) VTwins.
There's a big difference between the way Harley+S&S make Vtwin engines, and the way that Honda indian Yamaha, ect ect make VTwins. World needs to know Lem!

[RevZilla]

Want to learn more about all things moto? Head over to RevZilla's Common Tread to read more.

[Affliction]

Damn Levi! Wear some gear when you ride! That tan on the arms is crazy!!!

[doublenickel]

I've always thought Yamaha's point about the triple being a crossplane design is a point well taken. The triple crank is a crossplane par excellence, the throws being in 3 planes not just 2. This has the advantage of only one piston being stopped at any given moment; the other two are in motion smoothing out the inertial torque flow.

[ThatGuyFromNantucket]

Lemmy turned into a fucking lobster! Dude.... sun screen! lol

[andrews]

1:04 I really don't understand how a twin can have it's crank pins 90 degrees apart. 360/2=180. Or have I completely misunderstood this?

[Miata]

Clean and concise. I wondered WTF Yamaha meant by crossplane triple. I envisioned 90 degree offsets, but that just wouldn't sound right.

[pyrocore]

Been riding our in the sun there Lem? Great to see a rider earning his colours! ;)

[exothermal.sprocket]

What's a crossplane crank? It's a crank that has crankpins that are not co-planar. That's it. Even if they are 1° off, it's a cross-plane.

[andrewhannam.]

Parallel twins with 270 crank are cross plain, as with L twins if memory serves me right. 360 twins are more iconic to my ears.

[lordgibbness]

Is the Yamaha cp3 engine spaced at 120° like a normal triple, or at 90° like the cp2 and cp4 engines?

[Roy_Godiksen]

This videos could be 30 minutes long, and i'd still be glued to the screen. Don't know if you can talk for 30 minutes about just Crossplane cranks though....

[sterlingroberts]

I have a 2006 Honda Rebel 250 in the shop for a basic carb rebuild, and I was just thinking it’d be neat to have a 270° crank on it in place of the stock 360° one. How feasible is this, and what kind of money? I’m also not totally opposed to doing some wrenching myself, but it will be an undertaking.

I also have a 2017 Ninja 300 that I am less willing to modify in this way, at least on my own.

Please, let me know if there is precedent for this, as I am deadly curious.