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Thread: Can a motorbike out brake a car?

  1. #76
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    you look at the you tube video of the bike vs the lambo on the race track, you can see how much longer it takes to slow a bike vs teh car.
    Then I could get a Kb Tshirt, move to Timaru and become a full time crossdressing faggot

  2. #77
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    Quote Originally Posted by renegade master View Post
    you look at the you tube video of the bike vs the lambo on the race track, you can see how much longer it takes to slow a bike vs teh car.
    Indeed - but while the 1098 might not be your average bike the lambo is about as far a cry from an average car as you can possibly get. I think you'll find a slight difference on the price tags as well... (besides, I would personally like to have them do all 3 exercises at least 10 times and then compare the averages).

    I'd still put my money on your average motorcycle (road-bike, of course) being able to out brake your average family car - and most definately just about any 4x4. That is provided the pilot is not a complete tosser of course in which case you'll end up the way I have on a couple of occasions now.

    Generally speaking bikes have good brakes compared to their weight and unless you have a gross disregard for your own health you take some interest in fitting decent tyres to it. The same cannot be said for most cars out there.
    It is preferential to refrain from the utilisation of grandiose verbiage in the circumstance that your intellectualisation can be expressed using comparatively simplistic lexicological entities. (...such as the word fuck.)

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  3. #78
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    Quote Originally Posted by Mikkel View Post
    I'd still put my money on your average motorcycle (road-bike, of course) being able to out brake your average family car.
    So what do you have in mind as an average car and an average motorcycle?
    Quote Originally Posted by Tank
    You say "no one wants to fuck with some large bloke on a really angry sounding bike" but the truth of the matter is that you are a balding middle-aged ice-cream seller from Edgecume who wears a hello kitty t-shirt (in your profile pic) and your angry sounding bike is a fucken hyoshit - not some big assed harley with a human skull on the front.

  4. #79
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    I'm pretty sure my V6 Camry with ABS wearing Firestone something-or-others can outbrake the hell out of my GSX1400 wearing Pilot Road 2s.



    In fact, I'd be quite happy to set up a test of that.
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  5. #80
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    Quote Originally Posted by Mikkel View Post
    Indeed - but while the 1098 might not be your average bike the lambo is about as far a cry from an average car as you can possibly get..
    they are both the top of the range in their respective fields.

    at the other end of the spectrum, i would put money on a Daihatsu Mira outbraking a GN250.

  6. #81
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    Quote Originally Posted by The Stranger View Post
    So what do you have in mind as an average car and an average motorcycle?
    Good point really. I'm not even going to suggest an average motorcycle on here - someone is bound to take offense.

    Let's say something from the mid to late nineties that weighs around the 200-250 kg mark, have a two-pot caliper disc brake on the front and a single-pot caliper on the rear.

    As for the car, take a middle class family sedan from the same period with a weight of about 1100-1300 kg, disc brakes on the front and drums on the rear.

    I suspect that the main difference would be the tyres.
    It is preferential to refrain from the utilisation of grandiose verbiage in the circumstance that your intellectualisation can be expressed using comparatively simplistic lexicological entities. (...such as the word fuck.)

    Remember your humanity, and forget the rest. - Joseph Rotblat

  7. #82
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    bikes do stop faster its just up to rider ability

  8. #83
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    the only way to know is to set up some tests _b
    Then I could get a Kb Tshirt, move to Timaru and become a full time crossdressing faggot

  9. #84
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    Quote Originally Posted by renegade master View Post
    the only way to know is to set up some tests _b
    Test it on the next guy that tail gates you. If he hits you - you won!
    It is preferential to refrain from the utilisation of grandiose verbiage in the circumstance that your intellectualisation can be expressed using comparatively simplistic lexicological entities. (...such as the word fuck.)

    Remember your humanity, and forget the rest. - Joseph Rotblat

  10. #85
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    Quote Originally Posted by Mikkel View Post
    Test it on the next guy that tail gates you. If he hits you - you won!
    you have to factor in reaction time otherwise its a unfair test

  11. #86
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    Quote Originally Posted by renegade master View Post
    the only way to know is to set up some tests _b
    Plenty of people have (scroll up) and the car always wins.

  12. #87
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    Quote Originally Posted by Mikkel View Post

    What you fail to realise is that the profile of the tyre has (almost) no impact upon the size of the contact patch - only the shape. Besides the size of the contact patch is not what determines the amount of traction you have available. The only thing that matters in relation to traction is the force on the wheel (the weight on the wheel if you want) and the coefficient of friction.
    Quote Originally Posted by Mikkel View Post

    I suspect that the main difference would be the tyres.
    so is it the tyres, or the weight/coefficient of friction that makes difference?

    lets see some proof of what you're saying.

  13. #88
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    Quote Originally Posted by Tom View Post
    you have to factor in reaction time otherwise its a unfair test
    That was kinda the point behind my not-so-serious post. And the point is of course that it is unfair to the person in front of you to sit closer than your reaction time allows for... And a lot of people do exactly that.

    Quote Originally Posted by marty View Post
    so is it the tyres, or the weight/coefficient of friction that makes difference?

    lets see some proof of what you're saying.
    I don't follow the first bit of your post. The tyres and road surface - all of their properties (e.g. pressure, temperature, etc) - are what determines the coefficient of friction.

    Weight is divided out in the equation since more weight equals more normal force, but also more inertia. More weight will be harder on the tyres and brakes though...

    Proof of what I am saying. So what do you suggest? Personally I would suggest *you* go and get a good book on classical mechanics and when you're done with that I doubt you'd feel any need for me to backup what I have been claiming here.
    It is preferential to refrain from the utilisation of grandiose verbiage in the circumstance that your intellectualisation can be expressed using comparatively simplistic lexicological entities. (...such as the word fuck.)

    Remember your humanity, and forget the rest. - Joseph Rotblat

  14. #89
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    Quote Originally Posted by henry View Post
    A vehicles weight, or inertia, doesn't significantly alter is braking performance. The dominating factor is the friction between the road and the tyres. Cars have a bigger contact patch so can apply a greater stopping force to the road.
    Quote Originally Posted by Mikkel View Post
    What you fail to realise is that the profile of the tyre has (almost) no impact upon the size of the contact patch - only the shape. Besides the size of the contact patch is not what determines the amount of traction you have available. The only thing that matters in relation to traction is the force on the wheel (the weight on the wheel if you want) and the coefficient of friction.
    Henry is correct - when you do the sums to calculate decelerative force mass cancels out. You are left with gravity and friction. Since gravity is the same for both the defining factor is friction. If you assume no wheel lock up then it all comes down to braking efficiency.

    Mikkel is also correct because mass comes back into play when you consider energy. Ie ability of the brakes to convert kinetic energy into heat.

    Bikes have fewer brakes but less energy to dissipate. Cars have more brakes but more energy. The winner all depends on what you consider average. I wouldn't like to pick it.
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  15. #90
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    Quote Originally Posted by marty View Post
    so is it the tyres, or the weight/coefficient of friction that makes difference?
    As they both influence each other, it would have to be both.

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