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Old 09-04-2014, 04:49 PM   #141
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Quote:
Originally Posted by Bevo View Post
The Honda ABS doesn't take over any control unless you hit the brakes so hard that the tires stop rotating.


Agreed but one doesn't generally lock the front tire until you're forward motion is 0 doing a stoppie. All the forces that get the rear in the air occur with both wheels still spinning. In fact some guys can carry the rear longer than most guy can carry a wheelie.


ABS would not have saved the two riders in question on the track. It would not have saved me on the street either because of HOW the brakes were applied. In the MCN video you can see all three men doing their best NOT to transfer weight to the front which is the correct way to stop aggressively on wet pavement. Apples and Oranges.
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Old 09-04-2014, 04:59 PM   #142
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**** unitl YOUR forward motion****
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Old 09-04-2014, 05:02 PM   #143
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It is a good idea for everyone to have but some people either can't afford it or whatever. I was just pointing out that someone who chose to not buy health insurance because their sport bikes and track time budget didn't allow for it have little sympathy from me.
priorities, we all figure em out at some point. riding at all (street or track) without health insurance is rolling the dice, and you wouldn't find me doing it.
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Old 09-04-2014, 05:18 PM   #144
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priorities, we all figure em out at some point. riding at all (street or track) without health insurance is rolling the dice, and you wouldn't find me doing it.
exactly i think everyone should have to have medical insurance to do track days. if you got money to go out there and do that then you have money to pay your health insurance
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Old 09-04-2014, 05:19 PM   #145
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oh yea, obama care
yeah it's a shame that like car insurance the government has to strong arm people into being responsible......that's so evil
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Old 09-04-2014, 05:23 PM   #146
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**facepalm**

and how fast were u going when u did that? lemme guess on an indestructible honda with parachutes and several add-ons and abs? slamming front breaks at 20mph vs 80mph are not the same at all. doesn't take a physics genius to understand weight transfer. fast enough like the video and you WILL flip over!! it's not rocket surgery.
A physics genius would know that the rate of deceleration is all that would change the weight transfer. It's newtons 2nd law which I believe is covered in high school. What is going to cause you to endo is enough torque on the front wheel to over come the torque in the opposite direction by the weight of the bike and rider. Then at 80mph you will have the wind pushing on your body to also hold the bike down. So the physics genius would know that endos are easier at slower speeds. Nice try though.
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Old 09-04-2014, 05:32 PM   #147
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yeah it's a shame that like car insurance the government has to strong arm people into being responsible......that's so evil
How cute...

You think that's why they shoved it down our throats?
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Old 09-04-2014, 05:46 PM   #148
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finally someone with some sense. comical to read posts of people saying some abs will prevent stoppies. honda my . haul at 100mph and slam the front breaks and tell me if u won't flip to the moon.
On my BMW, you won't flip to the moon. I've tried it, it doesn't want to lift the rear wheel.

So yeah, a abs will prevent a stoppie.
 
Old 09-04-2014, 05:48 PM   #149
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Old 09-04-2014, 09:29 PM   #150
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Technically the air is relatively still. It is the resistance (drag) of a body passing through it that is perceived as wind, but of course a physics genius already knows that.
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Old 09-04-2014, 09:37 PM   #151
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It would not have saved me on the street either because of HOW the brakes were applied.
Yeah, it's hard to admit that something you didn't have on your bike might have saved it.
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Old 09-04-2014, 09:48 PM   #152
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Old 09-04-2014, 09:51 PM   #153
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I wish I could endo... Will either of the endoers care to give me pointers or lessons?
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Old 09-04-2014, 10:13 PM   #154
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Technically the air is relatively still. It is the resistance (drag) of a body passing through it that is perceived as wind, but of course a physics genius already knows that.
Physics genius's also know how to determine frames of reference. To me, the rider, still air would be moving at about 80 mph.
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Old 09-04-2014, 10:17 PM   #155
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A physics genius would know that the rate of deceleration is all that would change the weight transfer. It's newtons 2nd law which I believe is covered in high school. What is going to cause you to endo is enough torque on the front wheel to over come the torque in the opposite direction by the weight of the bike and rider. Then at 80mph you will have the wind pushing on your body to also hold the bike down. So the physics genius would know that endos are easier at slower speeds. Nice try though.
Smartass fail. You're saying it's easier to endo at low speeds than high speeds because the wind will hold u back??? Wow. Just wow
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Old 09-04-2014, 10:47 PM   #156
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Ok business major I'll dumb it down for you. Wind at 80mph is 80% of the force resisting forward motion. Motorcycle's (especially with a rider sitting up) is one of the most un aerodynamic vehicles on the road. The force due to wind resistance can be approximated by a single force at the center of the vehicles cross sectional area. This will be atleast halfway up the motorcycle/rider. Since we know the average seat height of sport bikes is around 30-32 inches and the average male is 5'10" or 70 inches we will assume the center is at 35 inches but for ease of units and math we will call it 3ft. The drag coefficient of the avg motorcycle is .9. The equation for drag force is 1/2*rho*v^2*drag coefficient*Area. Now we need to convert some units. 80 mph is 117 ft/s. Cross sectional area is going to be tough so we will approximate with a 15inch wide and 70" tall rectangle, with is 7.26 sq ft. Density of air is .0023769 slug/ft^3. Alright so we plug the numbers and we get 106.29lbs of force pushing against the bike. Now since you're a business major you know that torque is force times radius which the radius will be 3 ft so we are left with 318.89 ft lbs of tq pushing the back end of the bike back down. Which just so happens to be almost 60ft lbs more than your car can produce.

An article to read in your spare time, skip to the longitudinal dynamics section for more info and easy to understand pictures.

http://en.m.wikipedia.org/wiki/Bicyc...cycle_dynamics
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Old 09-04-2014, 11:15 PM   #157
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Old 09-04-2014, 11:21 PM   #158
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Ok business major I'll dumb it down for you. Wind at 80mph is 80% of the force resisting forward motion. Motorcycle's (especially with a rider sitting up) is one of the most un aerodynamic vehicles on the road. The force due to wind resistance can be approximated by a single force at the center of the vehicles cross sectional area. This will be atleast halfway up the motorcycle/rider. Since we know the average seat height of sport bikes is around 30-32 inches and the average male is 5'10" or 70 inches we will assume the center is at 35 inches but for ease of units and math we will call it 3ft. The drag coefficient of the avg motorcycle is .9. The equation for drag force is 1/2*rho*v^2*drag coefficient*Area. Now we need to convert some units. 80 mph is 117 ft/s. Cross sectional area is going to be tough so we will approximate with a 15inch wide and 70" tall rectangle, with is 7.26 sq ft. Density of air is .0023769 slug/ft^3. Alright so we plug the numbers and we get 106.29lbs of force pushing against the bike. Now since you're a business major you know that torque is force times radius which the radius will be 3 ft so we are left with 318.89 ft lbs of tq pushing the back end of the bike back down. Which just so happens to be almost 60ft lbs more than your car can produce.

An article to read in your spare time, skip to the longitudinal dynamics section for more info and easy to understand pictures.

http://en.m.wikipedia.org/wiki/Bicyc...cycle_dynamics


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Old 09-05-2014, 05:05 AM   #159
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Quote:
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Yeah, it's hard to admit that something you didn't have on your bike might have saved it.
Remember, I've had bikes with ABS, I'm not against it. In fact that's why I'm confident ABS would not have saved me or them, due to the way the weight was transferred during the panic stops. In neither case would the ABS had any reason to activate until it was far too late.
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Old 09-05-2014, 06:08 AM   #160
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willywonkameme zpsb47aa455
No I pretty much already summed up about how retarded you are.
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