it also gives the odometer reading +8%. Those tires aren't lasting as long as you think.
I'm not sure that's true actually I noticed with tune ecu it's reading the same speed as my GPS. I'm wondering if the speedometer is telling us a different speed while the miles the bike is accumulating is going along with what the ecu is actually reading. If that made any sense lol
 
I've never had any vehicle that was spot-on. Manufacturers build in a legal margin of error to cover themselves. If people getting speeding tickets could claim they were mislead by the speedo readout there'd be a tidal wave of litigation.
Personally I'm all for it. If you stick to the indicated speed through camera traps you know you're safe.
 
As it happens, today I was out trying my new phone mount with Waze & notice the difference in speed between Waze GPS & the speedo. When the speedo was at 50kph the GPS said 46, increase speed to 54kh on speedo & GPS says 50kph. Righto I think, just add 4kph & I'll be right on the money. Nope. At 104kph indicated on speedo GPS says 96kph. increase to 108kph on speedo & GPS says 100kph.
The speedo is displaying 8% too high for every speed, did a little mental arithmetic while riding & came up with 54k's indicated is 50, 75k's indicated is 70 & 108k's indicated is 100 for when I don't have the phone /GPS setup functioning or can't see it because of glare.

A couple of other bikes I've had have been the same, but thought a new era bike with digital dash would be a lot more accurate. I had Speedohealers on the others & got them to read spot on, but then the ODO was slow, so ya can't have it all. I took the right speed over the distance. One bike was 7.5% too high & think the other was 11%. My R3GT is 8%, so some things don't change.
 
With the older Rockets, I could have just adjusted my speedo difference with Tune ECU. I went with a 55 profile tire instead which brought me close enough.

My complaint with the Triumph speedo is... why does my speedo only track in KPH? Why not a dual MPH/KPH model like those sold in the States? Been down south of the border for the last 5 months and have had to use my phone on a Quad Lock as a speedo %^&*$%&!!
 
I thought it could display in MPH or KPH, thought that was in Bike Set Up? TBH I'd not have taken much notice as we only use KPH here, but thought it was a selectable option.
 
Correction, not Bike Set Up it's in Display Set Up. So to change it press the Home button
Select Display Setup from the Main Menu
Scroll down to Units & Select (it's not seen until you scroll down passed the initial options)
Distance / Economy is first up, select that
Here you have the option of Miles & MPG UK or Miles & MPG US, Km & L/100Km or Km & KM/L as per the pic below.


20250327_100900.jpg
 
Weird distance covered.

I may have the highest mileage rocket in existence! I spotted an irregularity with what distance the ECU thinks the bike has covered, but it depends . . .
1 reading says it's done 16,777,215Km!! That's about 22 round trips to the moon & back! Step aside space shuttle, the Rocket is here. . .

20250327_095412.jpg


This only shows while the engine is running. I wonder why there is a difference.

When it's just powered up & not running I get the below, which is what it should be.

20250327_095509.jpg


Just an odd thing I noticed & thought I'd share it with y'all.
 
16777215 is just the decimal representation of hexadecimal #FFFFFF or 24 binary bits all set to "1". Given several other fields also seem to default to all binary ones, it's probably just some default used when the value can't (or shouldn't?) be accessed.
 
Back
Top