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post #1 of 15 (permalink) Old 04-15-2006, 07:18 PM Thread Starter
 
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brake rotor question

I just checked the rotors on the back of my bike, it looks like they could stand to be replaced before too much longer. I'd like to ask, on a ZX1000 is this something for a dealer to do? I am not completely comfortable tearing the back end of my bike apart to fix it, so I want it done right.
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post #2 of 15 (permalink) Old 04-15-2006, 07:51 PM
 
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rear brake rotors? people actually use those?
if you really must replace them, they do not require special skills. just make sure you have the right size wrenches and a rear stand.

-a|ex
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post #3 of 15 (permalink) Old 04-15-2006, 09:40 PM
 
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Quote:
Originally Posted by Back _Marker
they do not require special skills. just make sure you have the right size wrenches and a rear stand.

-a|ex
and a torque wrench.
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post #4 of 15 (permalink) Old 04-16-2006, 04:05 AM
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Yeah rear rotor? You must be using it WAY too much!! The only thing that is suppose to be used for is to balance the weight better during hard braking.

Anyway, I JK hit it right on.... torque wrench.

Other than that... it shouldn't be that bad. Have you ever removed a rear wheel before?




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post #5 of 15 (permalink) Old 04-17-2006, 09:51 AM
 
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Don't listen to these yokels...I use my rear brake all the time...I change rear pads out 2 to 1 vs my front pads...the rear brake will settle your chassis down and you won't be "pushing" your front end when you try to stop...

Yes you can change the rotors easily...just make sure when you bolt the new one on, it is level and plumb or you will have the shakes when stopping and will wear your pads quickly...
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post #6 of 15 (permalink) Old 04-17-2006, 10:31 AM
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OK... and by that theory... I guess the MC's like BMW and Honda (goldwing) that have proportianal valves don't know what they are talking about when they distibute like 60/40 or 75/25 front to rear.

Heck every car I've EVER sat in or drove does that as well... so GM, Ford, Chrysler, Audi, BMW, Saab, Mazda, ect... they're all wrong too.... hmmm... glad you told me!



I mean if it works for you then fine. I'm not saying don't use the rear... I'm just saying they aren't designed for use like the way old timers did with their choppers and no front brakes. Go ahead and lock up the rear when trying to power stop!




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post #7 of 15 (permalink) Old 04-17-2006, 11:00 AM
 
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Quote:
Originally Posted by bumblebee
Don't listen to these yokels...I use my rear brake all the time...I change rear pads out 2 to 1 vs my front pads...the rear brake will settle your chassis down and you won't be "pushing" your front end when you try to stop...

Yes you can change the rotors easily...just make sure when you bolt the new one on, it is level and plumb or you will have the shakes when stopping and will wear your pads quickly...
To stop properly, and quickly you utilize both the front and the rear brake. The front brake handles 70% of the braking power while the rear provides the other 30%. I can't imagine how you would use the rear brake more than the front, unless stopping distance isn't an issue
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post #8 of 15 (permalink) Old 04-17-2006, 12:33 PM
 
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Quote:
Originally Posted by Gr1n1n
To stop properly, and quickly you utilize both the front and the rear brake. The front brake handles 70% of the braking power while the rear provides the other 30%. I can't imagine how you would use the rear brake more than the front, unless stopping distance isn't an issue
I use my rear brake every time I want control...many times without even touching the front brake. And yes, most of the stopping comes from the front, but what if you aren't trying to stop but regain balance and control?


Alright children, listen up...let's examine the dynamics of stopping a sportbike...

when you grab only the front brake, you quickly transfer the weight to the front wheel and the rear suspension actually rises as the weight is thrown forward which leads to a situation I call "pushing" the front wheel, and can lead to various control problems when riding on surfaces other than flat, smooth pavement. think about how "stoppies" work.

When you initiate braking by applying the back brake first, the rear suspension lowers, a process I call "squatting" and the weigh starts the transfer to the front wheel.

When you apply the front brakes, the suspension has settled down in the back. As you compress the front forks, the rear is down, almost "dragging" behind the motorcycle which allows for a lower center of gravity, better distribution of weight and smoother stops.

Learn how to adjust your brakes...Y'all have posted that vehicle brakes work in proportions...OK, so use it...I have my rear brake set up by adjustment that I almost literally have to stand on it with my heel to lock the rear. I use my rear in corners, turns, anywhere I want to "settle" the bike down and assert more control because as soon as you apply pressure to the rear rotor, the bike "sits down"

In the 2 years I have owned my F4i, I have locked the rear wheel once, when a usual 7 second yellow light turned from green to red in 3 seconds and I had to go from 65 to 0 in about 100 feet while going downhill...99birdv6 got a good laugh at that one.

You adjust your brakes properly, try what I am saying and then come back and tell me how wrong I am.

Last edited by bumblebee; 04-17-2006 at 12:41 PM.
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post #9 of 15 (permalink) Old 04-17-2006, 01:30 PM
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Hey I use my rear all the time.... to avoid the "dive"... I just can't imagine eating up rears faster than fronts...




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post #10 of 15 (permalink) Old 04-17-2006, 01:38 PM
 
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Quote:
Originally Posted by Gas Man
Hey I use my rear all the time.... to avoid the "dive"... I just can't imagine eating up rears faster than fronts...

reset your rear pressure and you will rarely use your front except for "quick" stops... I use only one or two fingers and pulse my front brakes...I guess it comes from being old and fat but I would rather come to a stop with my butt "down" and my feet under me than with my back end "up" and feeling thrown forward over the bars...
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post #11 of 15 (permalink) Old 04-17-2006, 01:43 PM
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Well I don't have to worry about this anymore... not with the chopper.




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post #12 of 15 (permalink) Old 04-17-2006, 01:48 PM Thread Starter
 
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ok this is turning into an interesting conversation here. now, both of ya STOP IT! I'm LEARNING AGAIN!
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post #13 of 15 (permalink) Old 04-17-2006, 01:50 PM
 
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Quote:
Originally Posted by ZX1000
ok this is turning into an interesting conversation here. now, both of ya STOP IT! I'm LEARNING AGAIN!


When you stop learning...you fail.
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post #14 of 15 (permalink) Old 04-17-2006, 01:51 PM
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Quote:
Originally Posted by bumblebee
When you stop learning...you fail.
Good call there Bee!




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post #15 of 15 (permalink) Old 04-17-2006, 08:15 PM
 
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To each his own. I only use rear brakes for riding in rain or off roading.

As for panick stops, forget about rear brakes. You're already doing a stoppie.

As for the front end loading up and compressing, doesn't matter if you use the rear brakes. Physics will show that forward momentum will still go forward. In other words, the front will still get loaded.

Try this, don't use the rear and start front braking earlier and lighter. You will reduce the momentum and not push your body weight onto your wrists. Engine braking will keep help settle the suspension.

Also remember, you have two large diameter front rotors vs one little rear rotor. You can apply less pressure up front with less risk of locking up than you would using the rear.

As for high performance braking, the least amount of braking is desirable.

-a|ex

Last edited by Back _Marker; 04-17-2006 at 11:46 PM.
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