Tyre pressure monitor?

[jimmy boy]

Does anyone trust the tp monitor? Is it accurate??

[Paul In Australia]

Mine certainly is and has been invaluable on more than one occasion.

best regards

paul

[jimmy boy]

Thanks Paul... I will have to start trusting these new fangled gizmos!!!

[TestPilot]

The only thing I don't like is the temperature compensation. The TPM measures temperature as well as pressure and displays the pressure corrected to a standard temperature (60 degrees F, I believe). So it doesn't matter if it's a hot day or a cold day, if the tires aren't leaking air, the pressure readings stay the same. That's fine for a leak check, but not usable for much else. I would rather get the uncorrected pressure, like my car shows me.

[AZRTRDR]

Amen!

[Nice n Easy Rider]

Does anyone trust the tp monitor? Is it accurate??

 

Mine has reliably read 3 psi less on both the front and rear as determined using several gauges. But since it has been consistent I just monitor it for any unexpected change.

[Don_Eilenberger]

The only thing I don't like is the temperature compensation. The TPM measures temperature as well as pressure and displays the pressure corrected to a standard temperature (60 degrees F, I believe). So it doesn't matter if it's a hot day or a cold day, if the tires aren't leaking air, the pressure readings stay the same. That's fine for a leak check, but not usable for much else. I would rather get the uncorrected pressure, like my car shows me.

 

The Zadi I have does uncorrected pressure, and tire temperature (at least the air in the tire temperature..) and it is interesting to watch, and I find useful. On cold days - once I start seeing 70F on the tire temperature I know I can count on a bit more grip out of the tires.

 

What's interesting is they also scale the alarm range to tire temperature - so as your temperature goes up - the unit expects higher air pressure. If it's too low - it triggers the alarm (it also has a high-pressure trigger, which I accidently tried out when I put about 4PSI extra in my front tire and hadn't reset the "learn pressure" for the alarm.)

 

Great tool - I use it all the time, and have come to rely on it. What's interesting - I can go now for months without having to air up my tires.. pressure stays very constant. I suspect most of the airing up I used to do was caused by losing air when checking the tire pressure.

[Hall Vince]

While we're on the subject...

 

Anyone know where I can get a replacement sensor unit for my Smartireset up?

The Tyre fitter broke one of mine and I've had no response from Smartire.

TIA

\v/

[David13]

My tpm seems to work fine. I just need to add a pound or two every month or two.

Vince: From their website:

(Note: SmarTire products are no longer available in the Passenger Car, Light Truck or Motorcycle markets and the company has ceased support for these product categories. Parts may be available at your local dealer, however, we retain no inventory to support service parts)

The only hope is a local dealer.

dc

[jimmy boy]

Interesting stuff.... does anyone run the book recommended pressure for solo of 32 F and 36.3 R ?? I read somewhere that 36 F and 40 R was preferred by a lot of people...

TIA...

[Don_Eilenberger]

Interesting stuff.... does anyone run the book recommended pressure for solo of 32 F and 36.3 R ?? I read somewhere that 36 F and 40 R was preferred by a lot of people...

TIA...

Hmm... your 9th posting..

 

This can start a never ending thread on tire pressure. Almost as good as an oil thread or tire thread.

 

To answer your question, yes - I do. (And yes - I've tried others and didn't like how it felt.)

[jimmy boy]

Don,

Put it down to initial excitement of owning the RT..and not knowing 5hit about them at present. I am sure my enthusiasm will wain!!

[Paul In Australia]

Interesting stuff.... does anyone run the book recommended pressure for solo of 32 F and 36.3 R ?? I read somewhere that 36 F and 40 R was preferred by a lot of people...

TIA...

Hmm... your 9th posting..

 

This can start a never ending thread on tire pressure. Almost as good as an oil thread or tire thread.

 

To answer your question, yes - I do. (And yes - I've tried others and didn't like how it felt.)

 

Hi Don

This is interesting. An averaged question I know, but what mileage do you get at those pressures and from what tyres?

best regards

Paul

[Selden]

This can start a never ending thread on tire pressure. Almost as good as an oil thread or tire thread.

Or nitrogen in tires?

[Rinkydink]

I have a dentist friend so I run nitrous oxide in my tires...miles of smiles

[Don_Eilenberger]

Interesting stuff.... does anyone run the book recommended pressure for solo of 32 F and 36.3 R ?? I read somewhere that 36 F and 40 R was preferred by a lot of people...

TIA...

Hmm... your 9th posting..

 

This can start a never ending thread on tire pressure. Almost as good as an oil thread or tire thread.

 

To answer your question, yes - I do. (And yes - I've tried others and didn't like how it felt.)

 

Hi Don

This is interesting. An averaged question I know, but what mileage do you get at those pressures and from what tyres?

best regards

Paul

 

Paul, really seems to depend on the tires.

 

On the Continental Road Attacks that came on the bike - about 12k from a front and perhaps 6k on the rear (but I tend to replace tires many people will run a lot further - the tire is no fun for me when it's squared off - and in my part of NJ, it's almost as bad as Florida.)

 

On the Michelin Pilot-Road-2's that I'm now using - both tires have > 12k on them, and I'm still trying to wear them out. I'd guess I have about another 2-3k miles left on them (and new PR2's are going on - these are great tires..) To solve the squaring off problem (which actually becomes a ridge on the PR2's due to the dual-compound) I attack the rear with my belt sander periodically and grind off the high spot.

 

I doubt if higher pressure would make a significant difference. It does make the bike feel less stable and much harsher. BTDT, didn't like it, figured if BMW recommended a pressure I'd use it.

[Paul In Australia]

Hi Don

Thats exactly what I have found, but everyone tells me higher pressures correspond with longer life. I just can't get that to work out in real life. The bike runs a LOT BETTER on the recoomended tyre pressures. Based on the fact I am NOT 182 lbs ( only a little!!! over) I adjust up by 1 psi on the front and 2 psi on the back. It just handles a lot better and seems to make no difference to tyre life that I can ascertain. Interesting as a lot of knowledgeable people here find tyre life is greatly increased by higher pressures. Maybe it relates more to load weight than we think? Thanks for the insight. regards

paul

[Hall Vince]

My tpm seems to work fine. I just need to add a pound or two every month or two.

Vince: From their website:

(Note: SmarTire products are no longer available in the Passenger Car, Light Truck or Motorcycle markets and the company has ceased support for these product categories. Parts may be available at your local dealer, however, we retain no inventory to support service parts)

The only hope is a local dealer.

dc

 

Thanks Dave.

I did see that, but emailed them hoping they could point me in the direction of someone that could help.

No joy tho.

[alexp]

my reads 3 psi less than the actual psi. Have spent hours in the shop for this problem. They tryed to install a new p/n available for my bike but didn't work. I gave up and live with it. Doesn't bother me. Its always 3 psi above the gauge reading.

[TestPilot]

Alex,

 

I suspect that's because your daily temperatures are somewhat warmer that 60 degrees. See the 4th post in this thread.

[Nice n Easy Rider]

Karl,

Mine does the exact same thing as Alex's (3 psi below actual value) but I can assure you that until this past weekend we haven't seen 60 F around here for months. Like Alex, I don't worry about it.

[alexp]

Make sense. So there is nothing wrong with my bike. Just the Engineers that designed this system.

Thanks