TPMS Accuracy

[martin_14]

Even if the TPS readout is not accurate, it should be repeatable. That is all we really need- as long as when the tire is at, say, 42 PSI, the gauge always reads 45 PSI, then the reading is meaningful. A C-14 owner could even go so far as to put a small note near the dash display that reads something like -3 or 45 = 42 or something similar as a reminder.

My own TPS are pretty accurate, and that is for the two sets (front and rear) that I have had in the bike.

Brian

An instrument like this is to give me info. I don't expect it to give me hundredths of PSI, but I expect it to be +/- 1 PSI accurate. It should be as accurate as needed to show something before there is appreciable change on the behavior of the bike.
These sensors are made in France and cost several hundreds of dollars to buy. I don't accept having to add a post-it to my dashboard 

[VirginiaJim]

 

[stevewfl]

An instrument like this is to give me info. I don't expect it to give me hundredths of PSI, but I expect it to be +/- 1 PSI accurate. It should be as accurate as needed to show something before there is appreciable change on the behavior of the bike.
These sensors are made in France and cost several hundreds of dollars to buy. I don't accept having to add a post-it to my dashboard 

Oh my....a pic opportunity with my Connie in the making......

hey at least Kawi got KiPass right or we'd be pushing our bikes around

[B.D.F.]

Well, regardless of the price or the [ahem] place of manufacturer, the stated purpose, as well as the obvious purpose of the TPS is to allow the rider to monitor any changes in tire pressure in addition to drawing the rider's attention to the tire pressure should it fall below a predetermined level. It is not nor was it ever meant to be used in place of a tire pressure gauge. Further, if that were tried, it would take riding the bike to see what the pressure in each tire was followed by a long cool- down period, a pressure adjustment and then another test ride to again turn the sensors on. It is not only easier but also the only practical way to check tire pressure on this vehicle using a hand- held pressure gauge.

Now besides all of that, only Mary Jane Tinklepants would use a Post- It note to keep track of any pressure offset readings on a motorcycle; real men would just dig the offset number into the dash with a dull awl, someplace near or perhaps directly into the LCD screen. Hardley riders would tatoo the offset onto their knuckles....

Brian

An instrument like this is to give me info. I don't expect it to give me hundredths of PSI, but I expect it to be +/- 1 PSI accurate. It should be as accurate as needed to show something before there is appreciable change on the behavior of the bike.
These sensors are made in France and cost several hundreds of dollars to buy. I don't accept having to add a post-it to my dashboard 

[r2t2]

Mine fluctuates +/- 1 to 2 pounds... Like a few have said... It's a good way to warn that a tire is going flat...

[rcannon409]

I have two high quality gauges, and my tps measures 3-4 psi low on the front and rear.  Maybe not so bad, really, as the lack of sensitivity keeps it from driving a person nuts as the tire heats and cools.

[OregonJim]

Mechanic at my dealership, who also owns a 2011 C14, advised me not to rely solely on the TPM system. Suggested using a gauge to set pressure, then watch the onboard readout for changes.

[booger]

An instrument like this is to give me info. I don't expect it to give me hundredths of PSI, but I expect it to be +/- 1 PSI accurate. It should be as accurate as needed to show something before there is appreciable change on the behavior of the bike.
These sensors are made in France and cost several hundreds of dollars to buy. I don't accept having to add a post-it to my dashboard 

I agree.  +/-1 PSI equates to 5% of scale at 40 psi.  You would think a mediocre digital sensor should be able to give you that.

[Pokey]

Starting to hate the damn things.....and dealers too.

[rcannon409]

I dont think the exact pressure is that important.  Suppose making it 100% accurate caused it to be a sensitive as the range sensor for the fuel?  There would be a line at the shops to have tps removed.

[maxtog]

 I tested mine today, since my tires were a bit low.  I filled them both, then used a high-quality Slime analog gauge to set both to exactly 42.  Ambient temp was 71 degrees (unseasonably cool and beautiful day).  Later, I took the bike out (72 degrees).  Initially the TPS showed 42/42 and after several miles, it said 43/42.  Several hours later, at night, at 62 degrees, they consistently said 42/42.

So, in my case, they are pretty darn accurate.