Can a motorbike out brake a car?

[Thunder 8]

Wouldn't more contact area give you less grip as there is less force per square inch pushing the tyre into the road?
I guess its really a matter of does it matter really.:laugh:

[YellowDog]

Like for like - The bike always wins.

Super car with 4 x 19" 255 low profile tyres against the beefiest bike - The car will always win.

Have you seen this video: http://www.youtube.com/watch?v=ZZKRphfVHqI

It really does demonstrate how where the each is stronger.

[imdying]

Heh heh youre funny.He's an engineer, he pretty much only deals with facts, not what he 'thinks' might be the case. Your opinion is of little consequence to him.


I guess its really a matter of does it matter really.:laugh:If it doesn't matter to you, then you might as well not participate in the thread.

[Thunder 8]

He's an engineer, he pretty much only deals with facts, not what he 'thinks' might be the case. Your opinion is of little consequence to him.

If it doesn't matter to you, then you might as well not participate in the thread.

Does him being an engineer mean hes the only engineer on here.You know nothing about me or what i do.Seems to be a lot of bosses on KB. I will do what i want thanks.

[imdying]

Does him being an engineer mean hes the only engineer on here.You know nothing about me or what i do.Seems to be a lot of bosses on KB. I will do what i want thanks.Sure, fine, whatever... let us know when you bring something to the table other than wah wah wah... it's not a particularly compelling argument.

[bogan]

Does him being an engineer mean hes the only engineer on here.You know nothing about me or what i do.Seems to be a lot of bosses on KB. I will do what i want thanks.

I'm also an engineer, and the guy who plans to do a traction predicting device, and I completely agree with mikkel on this one.

But perhaps a more important question, can a motorcycle out brake truck, as id imagine with the height to the ah, brakelights etc (big pointy edge head height) a truck would be far worse to crash into.

[Brett]

Mikkel is bang on the money.

Greater tyre surface area is really only going to help you under braking when you have exceeded the force/area ratio that the current tyre can sustain. Then you might need to be looking at a larger tyre contact surface so that you can transmit more energy into the road. But unless you have reached the peak of what the tyre can already deliver, then you may be barking down the wrong path.

The whole car vs bike thing comes down to stability....4 legs is better than 2 for stability folks. Not to mention the whole center of gravity business.

I would suggest that the following scenarios might be true:

Superbike (CBR, GSXR Ducatti etc) vs 1994 toyota corolla from same stopping velocity = bike win.

Superbike vs high end car such as audi, porsche, lambo (probably even including the likes of the Mitsi Evo, Subaru WRX) = car win

But with enough money you may just be able to engineer the outcome you wish.

[Mikkel]

I will do what i want thanks.

You can do whatever you want mate. I don't think you're going to rewrite classical mechanics any time soon though...
You made strong statements that were factually wrong, as a physicist (imdying was close - but an engineer is a fairly open term) I feel a need to inform you - and much more importantly: anyone who might read it and take it at face value - that you are incorrect.

That said, well done putting that V8 bike together. It sounds pretty awesome.

[Flip]

Its funny looking back the the term superbike (to me) describes a somewhat old 70s or 80s multi say CB, trident or sporty. The term supercar describes a modern high performance car. I suppose the same could be said about the terms sports bike and sports car.
Mikkel is perfectly correct a performance car will always stop faster than a performance bike. I'm not even thinking about anything too exotic like a Radical SR8 or the latest from Caterum or Aerial, just a ralatively normal production performance car.
Modern performance car and bike tyres are every bit as good as each other. The latest anti lock brakes now mean that any unskilled driver can almost stand a fast car on its nose. The car is just lower and can use all 4 wheels to stop, the bike can only brake until the rear comes off the ground.
Stopping any bike quickly is a very skilled operation, stopping a car well any dummy can stomp on a pedal and let the ABS do the work.

[ready4whatever]

yeah it should out-brake a car. depends on suspension brakes etc. best thing is to not follow so close