TP Checker TPMS ?

Mellow

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Aggie85

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Mellow said:
Good to know.. so the valve stem hole was an 11.3mm?
To be honest, I am not sure which of the options my friend used. I do believe he used the valve stems only because he mentioned if it all works, he would install the other option inside the tires.
 

Mellow

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Okay, will wait to see the pics an report. I know a few with the Doran system and like everything, some love it and some have issues.

I've never had one on a bike but can see the benefits of one.

I'm not sure for the S10 it makes sense if you are planning any dirty rides, if you have to lower your tire pressure or you hit some rocks that compress your tire I can see - although pretty remote - where it could damage the sensor.
 

Firefight911

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Mellow said:
Keep an eye on those... there are some ST1300 guys that have had their oem rubber valve stems fail do to the weight of these bending their stems. Installing metal stems is a better idea with this option.
Weight?

0.35 oz for the sensor versus .05 oz for a metal valve cap. I am going to agree to disagree on this one.
 

Firefight911

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Mellow said:
Interesting and certainly the first I have ever heard of this in several years of knowledge on this system. One thing of note is that I always change the valve stem with the tire. The OP in your link indicates his was old. Will look at a metal stem for sure and will keep an eye on it. Thanks for the link.
 

Mellow

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Agreed, a failed rubber stem it more of an issue with the stem itself that should be replaced but I do believe the added weight - albeit not that much - may accelerate the failure. This was on a street bike and there were a few other failures similar to this. Add a dual sport bike where there's additional leverage/pressure on that rubber stem and well, it would suck to be stuck on the side of the road w/torn valve stem... even worse, 10 miles from a road..

Just trying to be helpful, not critical.....
 

stevepsd

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Over the past several years there have been issues with rubber valve stems coming from China that have been recalled. Maybe some of these ended up on bikes.

http://news.consumerreports.org/safety/2008/06/valve-stem-reca.html

I have never been a fan of rubber valve stems, especially since living most of the time in the desert, which just eats rubber parts up in no time. I always replace them with steel stems....I have them on everything I own and will replace the ST's when I change tires.
 

jajpko

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::026:: on changing the rubber stems to metal.. I wonder what size hole is in the wheel? Anybody know?
 

justbob

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Mellow said:
I'm happy to report that the TP Checker works as advertised. The lighted display is not overpowering at night and is readable, although dim in bright sunlight. It takes less than 30 seconds for the unit to receive and display the tire pressure and temp each time the ignition key is turned on.
The old unit that I had was a SmarTire brand and it had motion activated sensors with an advertised battery life of 7 years. But because they were motion activated, it would not display until the bike was rolling. The sensors for the TP Checker are not motion activated and the sensors have an advertised life of 3 years. The units are sealed, so the batteries can NOT be replaced, you have to replace the sensors but it also means that you can see the tire pressure before the bike is in motion.
 

Spider

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fjr1300 said:
These are simple, inexpensive, and work!

http://www.powersportrider.com/CGI-BIN/ZCATJPG?catpub=ST0211C&catpage=163.00

BikeMaster pressure caps $5.00, two in a package.
Mike, have you been running these for a while? My concern with these (and the valve end TPMS sensors) is that to work they need to keep the actual valve open all the time. Which means relying on the valve cap/sensor's seal to keep the air in. Just wondering about long-term reliability. Thanks!
 

fjr1300

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Its been a year Now on the FZ1 and the Ninja 650, 3 months on the BMW, and since August 4th on the S10. I haven't had a problem with leak down, I look down to see if they're green and go. I still check the pressure ever so often and they have been within 1 # of what the pressure should be.
 

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Just a warning if you get this tpms.

The 'spine' on the rear tire will either need to be ground down some or you'll need to find some washers that will allow you to tighten the nut down with enough pressure to seal the valve stem.

I decided to ground mine down but, I need to ground down just a tad bit more so a socket will clear and allow the nut to tighten, I was able to get it pretty tight but I'm monitoring if I have any air loss over the next day or so before pulling the wheel again.

Given that minor issue, if you want to call it minor, I love the tpms... it registers the pressure and temp very quickly once power is supplied to the unit. I hope to put the front sensor on today, I don't see any issues with that one as there are 2 'spines' and they appear to allow room for the nut and a socket.

Not sure where I'm going to mount the display yet.
 

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