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RE: Correct way of braking...?

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RE: Correct way of braking...? - 9/7/2006 10:11:38 PM   
Blackdog F4i


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Maybe you would like to explain the Physics on that one.

The rear brake MAY possibly be able to provide some friction prior to the front suspension being loaded. After the front is loaded and front brake applied at full force the rear is unloaded. IT CANNOT provide braking force. Physics are pretty clear on that one. I urge you to not regurgitate everything you read and try it in the real world. See how many time in practice you lock the rear up. This is NOT when you ass is on the line and pucker factor is at 100.

The brain can only process so much information in a small space of time. Maybe if every day you practice 100-200 panic stops in a year you will have the skill to load the front using the back brake, then taper off pressure so as not to lock it all the while monitoring the amount of pressure you are applying to the front to make sure you are using the maximum amount of braking force that is available.

BTW, on my bookshelf are:

Twist of the Wrist II - Keith Code
Sport Riding Techniques - Nick Ienatsch
Total Control - Lee Parks
Smooth Riding - Reg Pridmore

Without re-reading them all I believe that everyone states that the rear brake is only good at the VERY BEGINNING of the stop, then must be tapered off. Not something that is easily done for a new rider without locking the rear.


< Message edited by Blackdog F4i -- 9/7/2006 10:23:05 PM >


_____________________________

John
CBR 600 F4i
Built it Frame-up.
Mods: Scorpion Carbon High Mount, PCIII, Supersport Undertail, CA Integrated LED Taillight, Targa Cowl, LP Short Stalks, Pyramid Hugger, Shogun Frame and Bar sliders, Corbin Saddle.

(in reply to unrealtrip)
Post #: 16
RE: Correct way of braking...? - 9/7/2006 10:30:49 PM   
unrealtrip


Posts: 77
Joined: 9/4/2006
From: California
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quote:

ORIGINAL: Blackdog F4i

Maybe you would like to explain the Physics on that one.

The rear brake MAY possibly be able to provide some friction prior to the front suspension being loaded. After the front is loaded and front brake applied at full force the rear is unloaded. IT CANNOT provide braking force. Physics are pretty clear on that one. I urge you to not regurgitate everything you read and try it in the real world. See how many time in practice you lock the rear up. This is NOT when you ass is on the line and pucker factor is at 100.

The brain can only process so much information in a small space of time. Maybe if every day you practice 100-200 panic stops in a year you will have the skill to load the front using the back brake, then taper off pressure so as not to lock it all the while monitoring the amount of pressure you are applying to the front to make sure you are using the maximum amount of braking force that is available.

BTW, on my bookshelf are:

Twist of the Wrist II - Keith Code
Sport Riding Techniques - Nick Ienatsch
Total Control - Lee Parks
Smooth Riding - Reg Pridmore

Without re-reading them all I believe that everyone states that the rear brake is only good at the VERY BEGINNING of the stop, then must be tapered off. Not something that is easily done for a new rider without locking the rear.



How ironic, a pissing contest over who can stop faster, not who can go faster. This is classic.

I am always learning and am always open to new ideas. I don't just take what I've read or heard at face value, those are just good books I recommend and I certainly don't just quote them, that's my real world experience take it FWIW.

I ride 90-100 miles 5 days a week and I do 100-300 mile weekend rides in the canyons for fun. I put a little over 2,000 miles a month on my bike and have had plenty of immediate stop situations.

And I'll take the Pepsi challenge with anyone that thinks they can stop faster than me with front brakes only. Get your pink slip ready. :)


< Message edited by unrealtrip -- 9/7/2006 10:38:46 PM >


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2001 CBR 600F4i
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(in reply to Blackdog F4i)
Post #: 17
RE: Correct way of braking...? - 9/7/2006 10:33:22 PM   
kash



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Joined: 2/24/2006
From: Ontario, Canada
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Watch this video & listen very carefully. There is a very interesting comment regarding the use of the rear brake at the very end.

http://video.google.com/videoplay?docid=-6656191590638402466&q=motorcycle&pl=true



_____________________________

2003 Honda CBR600F4i
Pimpbike Undertail with LED Lights
Front Signal Watsen LED Flushmount
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Zero Gravity Windshield
Rear Hugger
Vortex Frame Slider
Mesh Grille
Targa Solo Seat Cowl
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(in reply to Hackney)
Post #: 18
RE: Correct way of braking...? - 9/7/2006 10:39:31 PM   
Blackdog F4i


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After reviewing the text that I quickly have access to:

Keith Code: "It is my recommendation that you master using ONLY the front brake except when riding in slippery conditions" (A Twist of the Wrist II)

Lee Parks: "The rear brake on a moder sportsbike provides only about 10 percent of the total braking power. During full power stops from 60 miles per hour or more, the rear brake on a sportsbike is good for the first 10 or 15 feet or so, while the weight is fully transitioning onto the front tire. If you keep the rear wheel of a modern sportsbike on the ground, THE STOPPING DISTANCE WILL BE SLIGHTLY LONGER than if you have it slightly in the air." (Total Control)

Nick Ienatsch: "In a true emergency, you might not have the mental capacity to relieve rear brake pressure......" (Sport Riding Techniques) although Nick IS a proponent of using both brakes.

Reg Pridmore in "Smooth Riding" states that he uses the rear to settle the chassis much as I described earler but also mentions that you do not want the rear brake too accessible because you are likely to panick and lock it.

I am sure that should I take the time I can uncover MANY more sources to backup just what I described that while the rear brake serves as a tool it is NOT to be relied upon to stop the bike. The front brake is for stopping, the rear is for setting the chassis.





< Message edited by Blackdog F4i -- 9/7/2006 10:42:51 PM >


_____________________________

John
CBR 600 F4i
Built it Frame-up.
Mods: Scorpion Carbon High Mount, PCIII, Supersport Undertail, CA Integrated LED Taillight, Targa Cowl, LP Short Stalks, Pyramid Hugger, Shogun Frame and Bar sliders, Corbin Saddle.

(in reply to Blackdog F4i)
Post #: 19
RE: Correct way of braking...? - 9/7/2006 10:46:08 PM   
unrealtrip


Posts: 77
Joined: 9/4/2006
From: California
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quote:

ORIGINAL: Blackdog F4i

After reviewing the text that I quickly have access to:

Keith Code: "It is my recommendation that you master using ONLY the front brake except when riding in slippery conditions" (A Twist of the Wrist II)

Lee Parks: "The rear brake on a moder sportsbike provides only about 10 percent of the total braking power. During full power stops from 60 miles per hour or more, the rear brake on a sportsbike is good for the first 10 or 15 feet or so, while the weight is fully transitioning onto the front tire. If you keep the rear wheel of a modern sportsbike on the ground, THE STOPPING DISTANCE WILL BE SLIGHTLY LONGER than if you have it slightly in the air." (Total Control)

Nick Ienatsch: "In a true emergency, you might not have the mental capacity to relieve rear brake pressure......" (Sport Riding Techniques) although Nick IS a proponent of using both brakes.

Reg Pridmore in "Smooth Riding" states that he uses the rear to settle the chassis much as I described earler but also mentions that you do not want the rear brake too accessible because you are likely to panick and lock it.

I am sure that should I take the time I can uncover MANY more sources to backup just what I described that while the rear brake serves as a tool it is NOT to be relied upon to stop the bike. The front brake is for stopping, the rear is for setting the chassis.



You can dig up whatever you want, just please do not give dangerous advice to new riders.

I really need to get out of this thread. Good luck to you on the streets bro.

_____________________________

2001 CBR 600F4i
Bad Phish spring loaded sliders
Corbin seats

(in reply to Blackdog F4i)
Post #: 20
RE: Correct way of braking...? - 9/7/2006 10:46:16 PM   
Blackdog F4i


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Draw your own conclusions or go practice in a lot. I really don't need to ride to California to prove anything. I ride every day that it's practical. Unfortunately I really don't have that many panic stops because I predict and stay alert. I use my handling and keep routes of escape open.

If this conversation does nothing more than get people out to see for themselves which is better, then I have accomplished my goal. Whatever you decide, PRACTICE.

I haven't done any panic stop drills in awhile. I think tomorrow I may just go out and do some. If anything it's fun to get the back wheel up.

_____________________________

John
CBR 600 F4i
Built it Frame-up.
Mods: Scorpion Carbon High Mount, PCIII, Supersport Undertail, CA Integrated LED Taillight, Targa Cowl, LP Short Stalks, Pyramid Hugger, Shogun Frame and Bar sliders, Corbin Saddle.

(in reply to Blackdog F4i)
Post #: 21
RE: Correct way of braking...? - 9/7/2006 11:06:22 PM   
ejohn

 

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blackdog don't waste your time. This guy thinks he knows, but that the problem.

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Post #: 22
RE: Correct way of braking...? - 9/8/2006 12:22:20 AM   
spdrmns


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well blackdog, you may be correct on "the fastest way to stop a MODERN sport bike" BUT in every other situation the rear brake is a chassis setter and a brake! examples: driving in the rain and emergency stop, MOTOCROSS!, everyday riding, braking into a hard corner! and i would like to see you NOT use the rear brake in those situations! and if you are teaching an un-experianced rider to use only the front brake... GUESS WHAT! hes going to get himself killed!!!!!! here are some examples!

-driving in the rain on a very slight corner and a car pulls out.
RESULT- front tire slips out and you slide into the car!

-racin your buddy on dirtbikes and your on a gravel road.
RESULT- front tire slips out AGAIN!

- blind corner and you try and stop as fast as you can while turning slightly to stay on the road.
RESULT- you do an endo and cant stay on the road (you go in the weeds)

my point is that using the front brake may stop you faster then using the both, but its not a Technique that you could use in most situations! most emergency stops you have to turn as well! not easy on the front wheel! so why teach some one thats never been on a bike before to do endos in an emergency stop???? i have been riding motorcycles for 16 years and i am only 21! I RACE motocross, been on the track with my F4i ( if there was one near me i would go every weekend) and i have put over 45,000 miles on my 2 bikes combined! so for you trying to tell me that the front is the best and only the front, is a load of crap! and i think the msf coarse is designed for sportbikes too! considering that most younger guys nowa days get one!!!!!!

< Message edited by spdrmns -- 9/8/2006 12:23:37 AM >


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-2001 CBR600 F4i
-2001 Yamaha YZ250 (2-smoke)
-1996 Triumph Tiger 900
-1993 Suzuki GSX-R 750 Street Fighter
-1988 Ford Ranger 4 Banger

(in reply to ejohn)
Post #: 23
RE: Correct way of braking...? - 9/8/2006 1:32:20 AM   
DThompson


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http://www.webbikeworld.com/Motorcycle-Safety/braking-tips.htm

Read this and forget about what everyone else says on this.

Always use both brakes even if the back is slidding. I know for a fact that you can control a skid easily if you arent an idiot.

Fact is as follows - 2 tires trying to stop is better than one even if the front is 80% and the back is 5%
If you are in an emergency,yes the front has most of the stopping power but I dont know to many people that will let off of the brakes until they are fully stopped. Hence you will not highside if you are fully stopped even if your back tire was skidding because your momentum will be gone.

Ok so again, click the URL i posted and read it. It will tell you all you need to know about braking.

< Message edited by DThompson -- 9/8/2006 1:36:43 AM >

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Post #: 24
RE: Correct way of braking...? - 9/8/2006 1:50:41 AM   
spdrmns


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quote:

Read this and forget about what everyone else says on this.

Always use both brakes even if the back is slidding. I know for a fact that you can control a skid easily if you arent an idiot.

Fact is as follows - 2 tires trying to stop is better than one even if the front is 80% and the back is 5%
If you are in an emergency,yes the front has most of the stopping power but I dont know to many people that will let off of the brakes until they are fully stopped. Hence you will not highside if you are fully stopped even if your back tire was skidding because your momentum will be gone.

Ok so again, click the URL i posted and read it. It will tell you all you need to know about braking.


yup!

_____________________________



-2001 CBR600 F4i
-2001 Yamaha YZ250 (2-smoke)
-1996 Triumph Tiger 900
-1993 Suzuki GSX-R 750 Street Fighter
-1988 Ford Ranger 4 Banger

(in reply to DThompson)
Post #: 25
RE: Correct way of braking...? - 9/8/2006 5:24:07 AM   
Hackney


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Hey guys, sorry...I didn't want to turn this into a shouting match. You've all been helpful....trust me. I thought you were supposed to use rear brake primarily and front brake was optional.... So I'm already much more knowledgable...this will probably save the bike from dropping (or worse!!!) the first time I go on it...seeing I would've used the rear brake primarily and probably locked??

(in reply to Hackney)
Post #: 26
RE: Correct way of braking...? - 9/8/2006 8:53:08 AM   
Blackdog F4i


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Well, I have posted what the experts say and my own experience. Not much else I can add.

When do "I" use the back brake?

1. setting the chassis for fast corners.
2. any slick situation where the front has more of a chance of washing out ot locking (gravel, dirt, rain, etc)
3. Low speed maneuvering to tighten turns and stabilize the bike.

As for braking while leaned over. DONT DO IT. That is pretty much universally understood. If you set yourself up to where that was your only option, you screwed up. If you lock the rear brake while leaned over, you are done.

Take away whatever you want from this thread, BUT PRACTICE what you think you will do. Without practice you are just going to slam on the brakes and eat it.

_____________________________

John
CBR 600 F4i
Built it Frame-up.
Mods: Scorpion Carbon High Mount, PCIII, Supersport Undertail, CA Integrated LED Taillight, Targa Cowl, LP Short Stalks, Pyramid Hugger, Shogun Frame and Bar sliders, Corbin Saddle.

(in reply to Hackney)
Post #: 27
RE: Correct way of braking...? - 9/8/2006 8:59:10 AM   
DThompson


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You can brake in corners.....

I dont recomend it unless you are a good rider in the twisties but I know for a fact that you can because if im going to fast for a corner and I am in it already than I will hit the brakes.

Its all experience and knowledge. Racers brake in corners all the time.

(in reply to Blackdog F4i)
Post #: 28
RE: Correct way of braking...? - 9/8/2006 9:32:39 AM   
Blackdog F4i


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quote:

ORIGINAL: DThompson

I dont recomend it unless you are a good rider in the twisties but I know for a fact that you can because if im going to fast for a corner and I am in it already than I will hit the brakes.


Do I really need to go into this?.................

Racer TRAIL BRAKE, they don't brake mid corner.

If you brake in a corner or even chop the throttle you upset the chassis and lose ground clearance and change the rake of the chassis. Unless the pegs are already on the ground you can hold your throttle and make the line.

Braking in a corner is the leading cause of single motorcycle accidents on twisty roads.

Let me paint it in a different way. If you are in too fast and you don't think you can make it, the bike is already at the limit of traction. Braking will require more traction than holding maintenance throttle and riding it out. You can even take a wider line if the road or track allows, but stay off the brakes in a turn.

The only exception is if you have enough room to stand the bike up and grab the brakes. I HAVE had to do this while cutting backroads. It's always fun to come into a corner leaned over to find your road covered with gravel. Since I keep the speeds sane, I am able to register the issue, stand the bike up and threshold brake before hitting the gravel.

Shouldn't be a problem on the racetrack, but how many times have you seen a racer stand the bike up and ride it off track to avoid a crash.

**edit** fixed typo

< Message edited by Blackdog F4i -- 9/8/2006 9:33:45 AM >


_____________________________

John
CBR 600 F4i
Built it Frame-up.
Mods: Scorpion Carbon High Mount, PCIII, Supersport Undertail, CA Integrated LED Taillight, Targa Cowl, LP Short Stalks, Pyramid Hugger, Shogun Frame and Bar sliders, Corbin Saddle.

(in reply to DThompson)
Post #: 29
RE: Correct way of braking...? - 9/8/2006 10:57:45 AM   
Acumen

 

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As a physics major, I'd have to side with blackdog on this one.
Imagine a sportbike doing an endo. That is maximum braking possible.
In that situation, you can mash the back brake all you want and it will make 0% difference.
Just my opinion I guess...but i have physics on my side.
--Acumen

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I don't aspire to immediately be the best,
I only aspire to be better than I am now.

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