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ABS Concerns

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Old Jan 11, 2011 | 02:28 PM
  #41  
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ABS from Harley does not work leaned over into a curve. What happens is it uses up most of the traction leaned over and it messes up the ABS. Even the CD that they give you with the bike will explain it better then I ever could. IF, as on my 08, you brake hard the wheel may start bouncing. When the bouncing wheel is in the air the computer thinks that it is on ice and thats the feeling that you will get. Here is the link to the ABS CD..... http://www.youtube.com/watch?v=YQ6R8vNm7_M
 
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Old Jan 11, 2011 | 04:53 PM
  #42  
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Originally Posted by skratch
thats why right there. in order to make it a true apples to apples comparison, while he was kicking in his abs, you should be applying your brakes hard enough to skid.
The point Lance is trying to make is the ABS prevents you from extracting the shortest possible stopping distance under ideal conditions. Hitting the brakes hard enough to make it skid only makes it a test to see if you can lock up the brakes. He also stated that he thought that after riding both bikes that the ABS equipped bike would stop shorter in less than ideal conditions even with skilled riders aboard which is I believe the real benefit of the ABS for 90+% of the riders out there.
 
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Old Jan 11, 2011 | 05:19 PM
  #43  
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Originally Posted by The Old Man
ABS from Harley does not work leaned over into a curve. What happens is it uses up most of the traction leaned over and it messes up the ABS. Even the CD that they give you with the bike will explain it better then I ever could. IF, as on my 08, you brake hard the wheel may start bouncing. When the bouncing wheel is in the air the computer thinks that it is on ice and thats the feeling that you will get. Here is the link to the ABS CD..... http://www.youtube.com/watch?v=YQ6R8vNm7_M
One of the things you first learn in racing is a tire can only do one thing well at one time... either braking or turning... not both at the same time.
 
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Old Jan 11, 2011 | 05:58 PM
  #44  
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I bought a 2009 FLTRSE3 that came with ABS. I don’t care for it much.

I like to skid the rear tire and slide the bike to my right. This comes from my dirt racing days. If it becomes necessary to leave the bike I leave my right foot on the brake and begin exiting stage left. At high speeds I would fall to my back and slide.

Well a guy pulls out from a stop sign and near tags me. As I begin to brake hard both front and rear I feel the tires begin to lock up like I expected then all of a sudden I found myself straight up and heading for the side of his pickup. I didn’t like the feel at all. I now know what to expect and not sure still what my exit strategy would be should the occasion arise.
 
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Old Jan 11, 2011 | 07:36 PM
  #45  
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I posted a month or so back on "testing" my ABS unexpectedly. was following to close behind a tractor trailer (mea culpa) and as I was coming up to an intersection I could not see that the light was red until it was too late. Grabbed a handful and pedal-ful of brake...the abs kicked in and I came to a controlled and safe stop fully upright...so much I did the correct foot sequence at a stop they teach you in MSF class lol

Point being that the ABS performed exactly as it should have and in this case probably prevented me from locking up and sliding right into the intersection.

Not for everyone but I'm a believer
 
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Old Jan 11, 2011 | 07:48 PM
  #46  
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Originally Posted by carverdave
First, let me say I am a believer in ABS. I've tested it many times and feel it stops the bike much quicker and with better control. However, the first time I braked hard was not long after I first got my 09 RKC (with ABS option). I wasn't paying a lot of attention and came up too fast on a turn I was going to make. I braked hard with just the rear brake and it clicked hard then all of a sudden I felt like I was on ice. The brake released and I felt like I had no brakes and went right past my turn. I've tried stopping hard again and again with just the rear brake and it does the same thing every time. When applying the front at the same time they work great (stops hard and fast). I just hope that in an emergency situation I can train myself to grab the front at the same time. I've been practicing. Has any one else had this same experience?
Wow. The only time I touch my brake is during U-turns and parking lot maneuvers. Or on rare occasions when I need to tighten my line in a sweeper...

Rear brakes don't do squat for stopping a 900lb bike.
 
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Old Jan 11, 2011 | 08:07 PM
  #47  
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Originally Posted by qtrracer
The point Lance is trying to make is the ABS prevents you from extracting the shortest possible stopping distance under ideal conditions. Hitting the brakes hard enough to make it skid only makes it a test to see if you can lock up the brakes. He also stated that he thought that after riding both bikes that the ABS equipped bike would stop shorter in less than ideal conditions even with skilled riders aboard which is I believe the real benefit of the ABS for 90+% of the riders out there.

ExACTLY!!! :-)
 
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Old Jan 11, 2011 | 10:35 PM
  #48  
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Originally Posted by SUPRPIG
One of the things you first learn in racing is a tire can only do one thing well at one time... either braking or turning... not both at the same time.
That's why you should brake before going into a turn and accelerate through the turn.
 
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Old Jan 11, 2011 | 11:39 PM
  #49  
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Originally Posted by SUPRPIG
One of the things you first learn in racing is a tire can only do one thing well at one time... either braking or turning... not both at the same time.
Originally Posted by FDHOG
That's why you should brake before going into a turn and accelerate through the turn.
Just to further explain... A tire has "X" amount of grip. If you are using 50% of that grip for braking (or accelerating) there is only 50% of the total grip remaining for turning. You can do both, but you have to maintain the balance between the two.

Ideally, most of your braking should occur before entering the turn, then even throttle through the turn, and acceleration exiting the turn.

Of course there are no on/off switches between these events, but rather gradual transitions from one to the next with the corresponding brake/steering/throttle inputs. Every turn is a little different, different vehicles handle differently, and riding/driving styles vary, but the concept remains the same.

Make sense?
 
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Old Jan 12, 2011 | 01:25 AM
  #50  
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Originally Posted by JCleary
Wow. The only time I touch my brake is during U-turns and parking lot maneuvers. Or on rare occasions when I need to tighten my line in a sweeper...

Rear brakes don't do squat for stopping a 900lb bike.
Actually Harleys have a rear wheel weight bias and on the heavy touring bikes the back brake does add a lot of stopping power. That's why the Moco made the rear rotor and caliper as massive as the ones on the front.

I generally use 70-30 front/rear braking bias on my road king, and 80-20 for my other bikes.
 
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