Speedometer Error with R1250RSs & TFT Screen

[Grumpy Goat]

On our R1250RSs the speedometer is off 2% to 3%.
At 60 mph the TFT will read 61 or 62.
At 110 mph the TFT will read 102 or 103 mph.
Both bikes are the same.

Lee, thanks - I do hope you mean "At 100 mph the TFT will read 102 or 103 mph."

A 7 - 8 mph difference would make me seriously reconsider the bike. Seriously. This issue is that unacceptable to me.

61 - 62 @ 60 is fine and even 103 @ 100 is OK but getting irritating. My 4 mph difference is at lower speeds, so more than 3% I think.

On my Tracer the 1 mph seems more or less constant, meaning as a percentage it is likely getting smaller / more accurate the faster I go which is better than the other way around.