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[Cvostu]

If you do flick the brake, at least the guy behind you might notice that you are slowing down. 

[grc]

If you do flick the brake, at least the guy behind you might notice that you are slowing down. 

      Exactly.


Jerry

[Jerry/MD]

Appreciate the tip on cancelling the cruise. I use mine a good bit when commuting.

However...I do get a certain enjoyment from the tail-gating cagers when I deactivate at 50+ MPH using my brake. The strobe from my Bright A#@ tailight tends to get their attention. 

[RioGlide]

On my 07 SERK the cruise roll-off method worked pretty poorly.  Not nearly as effective as flicking the on/off swtich for the cruise or tapping either brake.  Works much better on the 11 RG so I've been using it much more often.

By the way if I recall correctly, prior to fly by wire, the cruise would not engage above an indicated 85.  The 11 sets up to 90, which according to the Zumo was 88.

[opee6969]

On my 07 SERK the cruise roll-off method worked pretty poorly.  Not nearly as effective as flicking the on/off swtich for the cruise or tapping either brake.  Works much better on the 11 RG so I've been using it much more often.

By the way if I recall correctly, prior to fly by wire, the cruise would not engage above an indicated 85.  The 11 sets up to 90, which according to the Zumo was 88.

My Zumo always shows me going 2-3 mph slower than the speedo. I wonder which one is right.

Opee

[murphy]

Remember that the Zumo is accurate within certain distances to plot your location and needs to send and receive data from and to the unit to get those results first, I'd suggest that the speedo is the one to go with.

[plasmadaddy]

Remember that the Zumo is accurate within certain distances to plot your location and needs to send and receive data from and to the unit to get those results first, I'd suggest that the speedo is the one to go with.

Hmmm not sure that I agree with that!

Speedo's all see to be calibrated to read slightly faster than the actual speed (at least it seems that way on this side of the pond!)

I've found the gps to be more accurate than the speedo, especially when it comes to our so called "safety" cameras 

[mrmagloo]

My Zumo always shows me going 2-3 mph slower than the speedo. I wonder which one is right.

Opee

The Zumo is right on. All speedo's on any vehicle reads 2-3 mph fast at 60mph. They claim this accommodates tire wear, but me thinks it's more about cutting 5% out of the life of all warranties early. That's about the threshhold they can get away with using this excuse that is universally used.

Get a Baker calibrator and you can adjust the Harley speedo dead nuts on the money.

[charles05663]

The Zumo is right on. All speedo's on any vehicle reads 2-3 mph fast at 60mph. They claim this accommodates tire wear, but me thinks it's more about cutting 5% out of the life of all warranties early. That's about the threshhold they can get away with using this excuse that is universally used.

Get a Baker calibrator and you can adjust the Harley speedo dead nuts on the money.

There was a thread awhile back about talking about speedo's accuracy (I can't find it).  I believe Kraut, mentioned that the EU requires the speedo's to register 5 KMH above the actual speed.  This would translate into the 2-3 mph mentioned.  I found the same issue with my Subaru Outback that when I am going 70 mph, the GPS tells me 67 mph.  From the radar signs indicating your speed, I found my SERG to be accurate.  I don't have a motorcycle GPS so I have not tested it that way.

[grc]

Years ago we had a tolerance on our (Ford) speedometers of -1/+5 mph at an indicated 60 mph.  The reason for the skewed tolerance had nothing to do with warranty, it had everything to do with speeding tickets.  It was better from our perspective to have the speedo read high than it was to read low and cause us to be blamed for people speeding.  If I remember correctly, there was also some obscure govt reg involved as well.  btw, we also had an unpublished automatic 500 mile extension on the warranty to cover any odometer inaccuracy, so for instance a 12,000 mile warranty became a 12,500 mile warranty in reality.

These days with modern electronics and manufacturing processes, it's normal to see tolerances of -0/+2 at an indicated 60 mph on automotive speedometers.  I've got no idea what kind of tolerances H-D has, but considering what they use for the really important stuff like cranks,  .


Jerry

[opee6969]

It appears the recalilbration units are somewhere around $100 apiece. I guess I can live with the speedo being a little fast since I'd have the module for  8 bikes. lol  At least it lets me feel like I'm going a little faster than I am. RUMSPRINGA!! 

Opee

[Twolanerider]

These days with modern electronics and manufacturing processes, it's normal to see tolerances of -0/+2 at an indicated 60 mph on automotive speedometers.  I've got no idea what kind of tolerances H-D has, but considering what they use for the really important stuff like cranks,  .


Jerry

Harley spec's would be that speedo must register any positive number while rolling in a forward direction.  Unless that proved problematic in terms of warranty volume.  Than the spec would be altered to include positive, negative and nul readings while in any forward direction of travel.

[Midnight Rider]

There was a thread awhile back about talking about speedo's accuracy (I can't find it).  I believe Kraut, mentioned that the EU requires the speedo's to register 5 KMH above the actual speed.  This would translate into the 2-3 mph mentioned.  I found the same issue with my Subaru Outback that when I am going 70 mph, the GPS tells me 67 mph.  From the radar signs indicating your speed, I found my SERG to be accurate.  I don't have a motorcycle GPS so I have not tested it that way.

My Toyota Matrix XRS is 2-3mph over what the GPS reads @75mph.  My wife's car was about the same...my older Garmin 2820 was the same vs. my old Subaru Outback.  I trust the GPS readout...

[Hotrod50]

Learn something new on here all the time.  I always thought the "roll forward" was only for engaging/disengaging the rear cylinder cut-off feature for idling when it gets hot.  I'll try it for cruise control kill.

[mrmagloo]

The reason for the skewed tolerance had nothing to do with warranty, it had everything to do with speeding tickets.  It was better from our perspective to have the speedo read high than it was to read low and cause us to be blamed for people speeding.  If I remember correctly, there was also some obscure govt reg involved as well.  btw, we also had an unpublished automatic 500 mile extension on the warranty to cover any odometer inaccuracy, so for instance a 12,000 mile warranty became a 12,500 mile warranty in reality.
  .

Jerry

I've had Ford try to violate a warranty BEFORE the 36/36,000 ended, so what might have been a nice 500 courtesy cushion in theory (mathematically it should have been more like 1,000 miles), that's very subjective on how that really trickled down. Harley on the other hand will fight tooth and nail on virtually everything, and I have zero doubt that they don't encourage any kind of a similar courtesy. While I agree that the speedo should never read low, I think it works out that 1% max will cover every possible variance that tire wear brings to the plate. At such, if you don't think there are bean counters out there that calculate to the penny how much speedo variance saves, broken down to the fraction of a MPH, I'd be willing to bet you are wrong.  Large scale manufactures spend a great deal of time and effort to calculate ROI's on virtually every conceivable balance sheet cost, and warranties are right up there.