Speedo Healer - Honda RC51 Forum : RC51 Motorcycle Forums
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post #1 of 16 (permalink) Old 10-01-2017, 11:25 PM Thread Starter
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Speedo Healer

Is it worth it? 16/43 gearing, 180/55 rear. Going to 190/55 if that makes any difference.

2002 Baconator SP2 with things and shit
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post #2 of 16 (permalink) Old 10-02-2017, 10:44 AM
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I put a Speedo ORD on mine from 12 o'clock labs. I went from stock gearing to -1 in the front and +1 in the rear plus the 190/55 tire and was off by 13% on the speedo when compared to GPS. Definitely worth it, plus the ORD unit is cheaper than Speedohealer.

2000 RC51 - stock owned since new 5/2000
2006 RC51 - 2nd owner purchased 4/2015 with 1400 miles
1996 CBR900RR - mild resto/mod - done spring 2012
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post #3 of 16 (permalink) Old 10-02-2017, 11:26 AM
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I just put one on. An ORD from 12 O'clock labs. Mine was out almost 17%!

I would say its worth it. Easy to install and program.

And there is one on Ebay right now.
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post #4 of 16 (permalink) Old 10-12-2017, 01:24 PM
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From almost new, I changed to a 15T front and 41T rear sprocket, and have always run 180/55 rear tyre. For me, this gives a very good ride/response. I installed a "Speedo Healer" and this is really easy to install and finely calibrate (against a Sat Nav for example) to give you a perfect speedo reading. Mine is accurate to my Garmin right up to 75mph. Obviously it doesn't correct the mileage reading, so I use a formula to give me mileage reading and actual; the bike mileage shows less than actual.

(UK-spec. SP2, 2002 owned from new, 45k miles)
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post #5 of 16 (permalink) Old 10-13-2017, 10:43 AM
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Let me see if I got this right.....

I have a 42T sprocket

If I set the Speedohealer to -8% to ensure the the speedometer show the correct MPH/KMPHspeed (which I verified with a GPS during say 30 seconds steady throttle), the ODO and tripmeter will records less than actual miles travelled?
So if the tripmeter shows 100 miles travelled, the true distance is ~108miles?

Old enough to know better, young enough not to care.
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post #6 of 16 (permalink) Old 10-13-2017, 11:19 AM
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Quote:
Originally Posted by DuckyLilZilla View Post
Is it worth it? 16/43 gearing, 180/55 rear. Going to 190/55 if that makes any difference.
Tire size makes a difference. Speaking to the 55 series tires, the 190 is a little taller.

The 190/55 will compensate a little for your bigger rear sprocket.

If you installed a speedohealer with your current sprockets and a 190/55, I suppose your correction would be around 10%.

I've never heard that the odometer isn't corrected too. I always assumed it was?

fwiw: I have 15/42 sprockets, a 200/55 tire and my correction is 11%.

John, 2000 RC51 #000100

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post #7 of 16 (permalink) Old 10-17-2017, 03:07 AM
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About the Speedo/Odo accuracy, here is a cutting from the R1 forum that I found, which sums up exactly what I experienced:

HOWEVER, if you install the product called a SpeedoHealer to correct the speedometer error, the speedometer will read correctly however then the Odometer will read about 5-7% low.....

The Speedometer and Odometer both get their signals from the same sensor in the final drive, therefore, they will read differently.

Read FAQ #16 here:

http://www.speedohealer.com/eng/faq.htm


I have the original SpeedoHealer; not sure if the new one (as pictured on their web site) work any different. They way to prove this is to take a GPS with you on a ride; you'll see how accurate both reading are.

(UK-spec. SP2, 2002 owned from new, 45k miles)
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post #8 of 16 (permalink) Old 10-17-2017, 10:08 AM
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If you are that freaked out about the odo just correct the speed to the stock error.


I don't see how anyone could give it that much thought

Last edited by Wibbly; 10-17-2017 at 10:11 AM.
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post #9 of 16 (permalink) Old 10-17-2017, 10:14 AM
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Quote:
Originally Posted by Dutchy View Post
Let me see if I got this right.....

I have a 42T sprocket

If I set the Speedohealer to -8% to ensure the the speedometer show the correct MPH/KMPHspeed (which I verified with a GPS during say 30 seconds steady throttle), the ODO and tripmeter will records less than actual miles travelled?
So if the tripmeter shows 100 miles travelled, the true distance is ~108miles?

The odo will be corrected by the speedo. They work from the same input.

The only way for the odo to read low is it you correct the speedo beyond the error in the factory setup. Hondas tend to read about 5% high. So putting - 5% on a stock bike would give you an accurate speedo and 5% low on the odo


If you changed your gearing a lot and needed -22% on the speedo, you'd still only be -5% on the odo.
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post #10 of 16 (permalink) Old 10-17-2017, 02:35 PM
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Just to chime in with some data for you guys: I'm 15/43, 190/50 PPower, and have a 20.2% correction on my 'Healer. This gives me EXACT correlation with my Vette at 70mph (once I got the GF to hold a steady damn speed, for chrissakes! ). If memory serves, my odo is a tenth of a mile "slow", meaning it takes about 1.1 miles to pass the mile markers on the interstate. I don't care much about odo accruacy, but speedo accuracy is very important to me.

2000 RC #001201
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2013 Corvette Grand Sport
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