Speed Sensor Location on 2013 R3 Roadster

[barbagris]

You should also note, however, that if you adjust the speedo readout using TuneECU that it will also affect the odo readout.

And it certainly will with a HEALTECH. It basically tells the ECU LIES. Via Tune ECU - you tell the ECU to lie to a guage.

 

[barbagris]

A 240/50 and a 240/55 will be out by different amounts.

3.7% difference twixt those two for example. On paper - from rotational distance numbers I've been supplied - could be MORE as it depends not only on the CARCASS spec' but also how much initial tread there is.

Leave the ruddy speedo alone - Get a cheep GPS speedo and know for certain.

 

[Bedifferent]

The correction percentage will depend on what tyres you have on. A 240/50 and a 240/55 will be out by different amounts. A 225/55 is different again, etc.

Personally, I prefer the odometer to be accurate and if the speedo is a bit optimistic then that gives me wiggle room which I'm sure has saved me from more than one ticket.

I'm running the stock 180 on my Touring at the moment. I was just curious if you had a number. I noticed on Wayne Tripps tune, there was a correction of -5.1 on the percentage

 

[bbach]

if the speedo is a bit optimistic then that gives me wiggle room which I'm sure has saved me from more than one ticket.

Same thought here. Every time I convince myself to heal the speedo I remember all the times I may have been saved by an optimistic reading.

 

[Luke]

What's the magic correction number in TuneECU? Looks like 80 MPH on the speedometer is actually around 76 MPH on my GPS on the R3T. The mileage number means nothing to me unless it affects the ECU remaining fuel calculation as well.

I believe my Roadster is off even more than yours. I used TuneECU last night to put a new fuel map on the bike, and set my speedo correction at -6%. I would prefer the speedo to be closer to actual and that should also keep the odo more accurate, rather than rolling on more miles. If your speedo is off by 6%, then for every 1000 miles you really put on the bike, the odo would be showing 1060 (thus showing higher miles on the bike than what has actually been covered).

Which menu allows you to bring the idle speed up a little? I did not see an obvious place to raise it. Thanks.

 

[idk]

I believe my Roadster is off even more than yours. I used TuneECU last night to put a new fuel map on the bike, and set my speedo correction at -6%. I would prefer the speedo to be closer to actual and that should also keep the odo more accurate, rather than rolling on more miles. If your speedo is off by 6%, then for every 1000 miles you really put on the bike, the odo would be showing 1060 (thus showing higher miles on the bike than what has actually been covered).

Which menu allows you to bring the idle speed up a little? I did not see an obvious place to raise it. Thanks.

Incorrect. From the factory the odometer is correct and the speedometer is optimistic. If you correct the speedometer to be accurate then the odometer will be pessimistic by the amount that you corrected the speedometer. You can have one, and only one, of them to be accurate. However, you could split the difference and have them both off by the same amount - speedometer high and odometer low.

 

[DEcosse]

Incorrect. From the factory the odometer is correct and the speedometer is optimistic. If you correct the speedometer to be accurate then the odometer will be pessimistic by the amount that you corrected the speedometer. ...

Agree.

 

[Luke]

Incorrect. From the factory the odometer is correct and the speedometer is optimistic. If you correct the speedometer to be accurate then the odometer will be pessimistic by the amount that you corrected the speedometer. You can have one, and only one, of them to be accurate. However, you could split the difference and have them both off by the same amount - speedometer high and odometer low.

How is the odo correct from the factory? Is it driven off the front wheel, rear wheel, tranny, etc? If the odo is pessimistic after correcting the speedo, isn't that the best of both worlds? An accurate speedo and less miles registered on the odo? Have I lost my mind?

 

[idk]

That is the way Triumph, in their wisdom, set it up.

At one point I had the speedometer accurate, and odometer leading low, but I didn't like it. I was getting frustrated at all the slow drivers - all the time. It is now set back to OEM and I don't get annoyed at slow drivers - as often. With the DS tyre there is about a 2% discount due to the larger diameter tyre. When the speedometer is reading 80 I am really doing about 76, which is fine for me.