I'm wondering if anyone else has had issues with there speedo being off. When I go past local radar my speedo says 37 and the radar shows 33, I have done this on several different radars and they all show the same margin of error.
2016 Hyperstrada speedometer off?
- Thread starter madzone12
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- 2016 hyperstrada speedometer
Yes. Speedo is consistently high. Mine is about 8 percent.
Can't use speedo healer or similar because of bike's electronics.
Sent from my iPhone using Tapatalk
Can't use speedo healer or similar because of bike's electronics.
Sent from my iPhone using Tapatalk
It is intentional. The percentage is called out in the 821 owners manual, and likely in the 939 as well.
Just makes me look all the more honest when I tell the cop my speed I guess since they won't think I'm lowballing them :-D
Joined Apr 2017
244 Posts | 1+
California
My unscientific observations indicate a 5% to 7% off-set based on random GPS comparisons and using stationary Radar speed signs. This is typical of all bikes I've ridden and tested.
Does the owners manual state the exact percentage of speedo off-set built into the ECU?
As stated correctly, ALL manufacturers off-set speedo readings optimistically, usually between 5% up to 10%. But ODO readings will be accurate (providing tires are stock size)
So far, I've hit 130 mph indicated on my HyperStrada. So I guess about 124 mph actual? Not bad!
Wind blast about ripped me off the bike. (this done prone, head down under screen) I think in calm weather could have gone a bit more. Did not note RPM.
Anyone done top speed testing? Results?
Does the owners manual state the exact percentage of speedo off-set built into the ECU?
As stated correctly, ALL manufacturers off-set speedo readings optimistically, usually between 5% up to 10%. But ODO readings will be accurate (providing tires are stock size)
So far, I've hit 130 mph indicated on my HyperStrada. So I guess about 124 mph actual? Not bad!
Wind blast about ripped me off the bike. (this done prone, head down under screen) I think in calm weather could have gone a bit more. Did not note RPM. Anyone done top speed testing? Results?
If i'm busted, I'm willing to take the hit for something less than 10mph over the limit. Once you click over 10 your in a world of hurt.
My unscientific observations indicate a 5% to 7% off-set based on random GPS comparisons and using stationary Radar speed signs. This is typical of all bikes I've ridden and tested.
Does the owners manual state the exact percentage of speedo off-set built into the ECU?
As stated correctly, ALL manufacturers off-set speedo readings optimistically, usually between 5% up to 10%. But ODO readings will be accurate (providing tires are stock size)
So far, I've hit 130 mph indicated on my HyperStrada. So I guess about 124 mph actual? Not bad!
Anyone done top speed testing? Results?
From the 821 manual.
http://hyperstrada.com/ducati-hyperstrada/629-speedometer-off-big-time-after-changing-front-sprocket-14t-2.html#post6697
Joined Nov 2013
1K Posts | 1+
Inland SoCal
I've heard this is due to EU paranoia over the chance someone would put a much bigger tire on the back. Mustn't give some clueless owner the excuse for speeding.
However, I would support going up one on the countershaft if it corrected this... our Mazdas are spot on as is our SV650 with the SpeedoDRD. I generally gear our bikes up a bit. Need to check if one will fit.
However, I would support going up one on the countershaft if it corrected this... our Mazdas are spot on as is our SV650 with the SpeedoDRD. I generally gear our bikes up a bit. Need to check if one will fit.
Of all my bikes the Hyper is the least optimistic. It is usually very close to the speed signs on the highway.
Still bummed I can't fit a 14T front sprocket. It shouldn't affect anything, but somehow it does.
Still bummed I can't fit a 14T front sprocket. It shouldn't affect anything, but somehow it does.
You could always go to a 520 chain kit and get a 46 tooth rear. I'm unaware if anyone makes a 46 for the stock 525 chain.
Joined Nov 2013
1K Posts | 1+
Inland SoCal
It sounds very much like the speedo gets its signal from the countershaft. So changing the final drive ratio in any way will cause a similar error. If it were tied to the ABS the final ratio would not matter.
So going down two teeth on the rear would provide a bit less than a -5% correction. For me, this plus more relaxed revs on the highway would offset any loss of roll-on performance. I can always downshift...
So going down two teeth on the rear would provide a bit less than a -5% correction. For me, this plus more relaxed revs on the highway would offset any loss of roll-on performance. I can always downshift...
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Joined Oct 2015
545 Posts | 0+
Minnesota
I can pretty confidently say that all bikes with Bosch ABS get their speed from the ABS sensors. We could have new ABS rings with 8% fewer pulses made over 1 revolution, and it would correct the speedo, and ABS would still work perfectly.
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