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RDRS = No Performance Mods

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Old Nov 19, 2019 | 11:11 PM
  #31  
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Originally Posted by Quik
Correct me if I'm wrong but doesn't harley m8 touring have a slipper clutch? The description of DSCS is what a slipper clutch does. Maybe this system goes beyond that though.
my understanding as well, an enhanced function...all in all i’m hard pressed to find a downside to having RDRS..just turned 58 and hope to ride until the day I die, just don’t want the two to be related😎😜
 
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Old Nov 20, 2019 | 10:33 AM
  #32  
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Originally Posted by mjwebb
my understanding as well, an enhanced function...all in all i’m hard pressed to find a downside to having RDRS..just turned 58 and hope to ride until the day I die, just don’t want the two to be related😎😜
What all these features rely on is the ECM to control the engine to what is needed, not what the rider is asking for. To do this the ECM HAS to be in the Torque Control Mode, no longer can that mode be turned off. All of the features in the new RDRS can only be handled this way. On the other hand nothing in the Traction Control or the RDRS packages limits the performance of the engine unless these systems become active. Once they become active (not simply turned on) they must be able to control the engine and braking system to work properly.
 
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Old Nov 20, 2019 | 10:42 AM
  #33  
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Originally Posted by Steve Cole
What all these features rely on is the ECM to control the engine to what is needed, not what the rider is asking for. To do this the ECM HAS to be in the Torque Control Mode, no longer can that mode be turned off. All of the features in the new RDRS can only be handled this way. On the other hand nothing in the Traction Control or the RDRS packages limits the performance of the engine unless these systems become active. Once they become active (not simply turned on) they must be able to control the engine and braking system to work properly.
good info, thanks...it's just a set it and forget it don't have to think about it deal since they are enabled by default..even disabling TC it is re-enabled by default at next ignition cycle..I'd guess 95+ % of the time riding 'normal' none of this stuff will matter...honestly I don't even know why they bothered adding the 'Rain' setting as a TC option..one would think detecting traction loss under acceleration in normal mode would be good enough
 
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Old Nov 20, 2019 | 11:02 AM
  #34  
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I'll keep my '17 and continue to smoke-show the rear tire when I feel like it.
 
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Old Nov 20, 2019 | 11:13 AM
  #35  
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Originally Posted by mjwebb
good info, thanks...it's just a set it and forget it don't have to think about it deal since they are enabled by default..even disabling TC it is re-enabled by default at next ignition cycle..I'd guess 95+ % of the time riding 'normal' none of this stuff will matter...honestly I don't even know why they bothered adding the 'Rain' setting as a TC option..one would think detecting traction loss under acceleration in normal mode would be good enough
Rain mode is a necessary thing IMHO. Since the system can only assume some things it cannot measure, having it be told the roads are wet is a huge help in what it ask the systems to do. If the system had to assume that the traction level was much lower than normal at all times it would react much more aggressively than necessary most of the time. The traction level of the bike is programmed into the EHCU control unit and there are two different settings and you are telling it which one to use. In racing applications there is as much time spent tuning the traction control as there is the engine controls and many times much more than the engine controls!
 
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Old Nov 20, 2019 | 11:27 AM
  #36  
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Originally Posted by Steve Cole
Rain mode is a necessary thing IMHO. Since the system can only assume some things it cannot measure, having it be told the roads are wet is a huge help in what it ask the systems to do. If the system had to assume that the traction level was much lower than normal at all times it would react much more aggressively than necessary most of the time. The traction level of the bike is programmed into the EHCU control unit and there are two different settings and you are telling it which one to use. In racing applications there is as much time spent tuning the traction control as there is the engine controls and many times much more than the engine controls!
thanks!..guess I will select that when roads are wet trusting it was developed to make a difference or they wouldn't have bothered, so far I haven't been selecting it as thought it might be somewhat gimmicky..and the fact that I activate common sense mode and slow down when it is wet out
 
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Old Nov 20, 2019 | 12:52 PM
  #37  
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Originally Posted by mjwebb
thanks!..guess I will select that when roads are wet trusting it was developed to make a difference or they wouldn't have bothered, so far I haven't been selecting it as thought it might be somewhat gimmicky..and the fact that I activate common sense mode and slow down when it is wet out
It's suppose to help those times that we have over-looked the activation of the "CommonSenseMode" switch.................
Not sure I want to go out with a $35 - 40K bike and test how good or bad it works, so I will just take their word on it for now or until I hear otherwise.
 
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Old Nov 20, 2019 | 05:26 PM
  #38  
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Originally Posted by Quik
Correct me if I'm wrong but doesn't harley m8 touring have a slipper clutch? The description of DSCS is what a slipper clutch does. Maybe this system goes beyond that though.
My RC30 has a slipper clutch which is a race thing allowing fast down shifts without engine braking as you approach a turn. This is to avoid upsetting the handling. Its actually a ton of fun! Engine speed jumps up for each downshift but doesn't slow the bike down.
 
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Old Nov 21, 2019 | 06:04 PM
  #39  
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Originally Posted by hellonewman
My RC30 has a slipper clutch which is a race thing allowing fast down shifts without engine braking as you approach a turn. This is to avoid upsetting the handling. Its actually a ton of fun! Engine speed jumps up for each downshift but doesn't slow the bike down.
We spent a bunch of time last year with Trikes figuring out how to work with this and one of our home made test was to soak the street with water and toss a small amount of sand out in the water and it made it nice and slick. Now put the Trike in a full lock turn coming through it. The first time it activated I though it was going to toss me off! It kill the power so bad and I was not ready for it. So after playing for awhile I found how much I could push it before it activated and know to be squeezing the legs on the tank to keep me in place!
 
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Old Nov 22, 2019 | 06:13 PM
  #40  
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Originally Posted by strych9
I'll keep my '17 and continue to smoke-show the rear tire when I feel like it.
While it's (RDRS) not for everyone, there is still a nice button on the left handle grip that allows for the smoke-show mode to be activated.
 
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