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Discussion Starter #1
I have read some past threads about TPMS. What i was looking for was information about damage to the valve stem. Some reviews for the TPMS that screw onto to the stem claim that their stems were damaged. I was planing to add a TPMS to LT that I just brought home however, I was surprised to find rubber valve stems not the thread metal like on my ST. If anyone has luck good or bad with screw on TPMS I would to hear.
 

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Wrencher Extraordinaire
2005 K1200LT
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I sent you a PM about the TPMS I use. Hope you get your post count up soon.
 

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Wrencher Extraordinaire
2005 K1200LT
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Got it and responded.
 

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I use the TireGard 13-318 - HANDLEBAR MOUNT TPMS, on both my K1200lt and R1150rt. They both work fantastic and the batteries, which are replaceable, last for years.

What ever you do, don't buy the Garmin TPM sensors that communicate with their Zumo 590LM. I tried them and the rear wheel sensor would not reliably communicate with the Zumo when mounted on the LT. Great GPS unit, but crappy TPMS.
 

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I use the TireGard 13-318 - HANDLEBAR MOUNT TPMS, on both my K1200lt and R1150rt. They both work fantastic and the batteries, which are replaceable, last for years.

What ever you do, don't buy the Garmin TPM sensors that communicate with their Zumo 590LM. I tried them and the rear wheel sensor would not reliably communicate with the Zumo when mounted on the LT. Great GPS unit, but crappy TPMS.
Wow, $200. It should work well for that price. I can get a good deal from JZ, but his are inside the tire and thus require tire dismount and precaution on each future tire change. The valve stem mounted sensors are attractive from a tire change and battery replacement perspective, but not sure TPMS is worth $200 to me. I have ridden 48 years without it. :grin:
 

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Discussion Starter #8
Great input and information. I will be trying the ones from JZ. I looked at them several years ago to install on my ST1100 however, never took the jump. On this bike I will install at the next tire change out. I have rode many years without but I now would like to try. :surprise:
 

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I have been using the Garmin TPMS for a few months with my Garmin 395 on my '11 R12RT. Once in a while it will say that Front/Rear TMPS is not connected but it has always started receiving it right away. I feel it is a little expensive at $140, NOT $200 see link below. You can sync up to 4 monitors into compatible GPS and you get a visual as well as audio alert through Bluetooth if the pressure is low. For what it's worth, I'm happy with 'em and would buy this system again.

https://www.revzilla.com/motorcycle/garmin-zumo-tire-pressure-monitor
 

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Just a gadget that we can all do just fine without. I said that when my first bikes didn't have a
gas gauge. But then, as everybody else, got used to it, and is good to have it. Same goes for
the TPMS. Is not for the accuracy, but for the warning in case there is a problem otherwise not
noticeable. I don't think everybody checks the pressure before and after each ride with a gauge...
I prefer the OEM since it is on board, but the batteries are gone. Is a 2008, so am surprised they
lasted this long! Is a shame that BMW is so greedy and expects us to pay $450 (plus shipping)
for a new set instead of making them battery replaceable. That case, would replace the batteries
every 4 seasons, if needed or not, when changing tires. So am going to try to replace the batteries
like in this video:
 

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I to use the tire guard it has saved me. I only use metal valve stems. I did one time have a rubber one and it did fail thus it saved me. The only thing is in the off season take battery out. Mine leaked and the terminal tape they use for the screen is right behind battery box the acid fried the glue I was able to fix but it was a job.
 

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Bought my first K back in Oct.

It came with two helmets with Sena bluetooth system. I'm thinking I'm going to try to minimize dash clutter by leveraging my android smartphone as much as possible.

Navigation, music, battery monitor, etc. I'd like to add a TPMS system similarly, after I install metal stems.

Is there any experience or opinion regarding the FOBO Bluetooth TPMS system? It is supposed to work through your cell with their free app.

Any input appreciated.
 

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Wrencher Extraordinaire
2005 K1200LT
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I haven't seen that one until I went to the web site. Looks interesting. Only down side I see is 2 year battery life and I don't see where you can replace it. OK went back and looked they are replaceable 2032 lithium batteries. Looks to be a good system for 100 bucks.
 

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Thought I posted this earlier but can't find it.

We did our first two-up ride this past weekend around and north of Lake Lanier outside Atlanta. It was beautiful 80 degree weather and we rode for just over 5 hours. Prior to launch, I verified tire pressures with the FOBO. They read 41.8 front and 48.2 rear. After a couple of hours we jumped on I-985 for about 15 miles or so at 75mph. Took an exit and got on the back roads again for 5 miles or so.

Stopped at a convenience store to get my bearings. When I looked at my phone(don't have it mounted yet) the FOBO system was giving me an alarm that the rear tire was at 58psi and 113 degrees. I put my hand on the tire and it was barely warm.

Does that reading sound real for internal measurements?
 

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I use the one from Big Bike parts. Works well but must be protected from moisture. Very reasonably priced. If you have a flat and lose pressure in the rear tire the weight of the bike will ruin the tire before you can get off the highway. I monitor the rear tire as I ride. Do not use rubber valve stems, they will fail with the weight of the TPMS sensor on them at highway speeds.

alex
 

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Premium Member
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Thought I posted this earlier but can't find it.

We did our first two-up ride this past weekend around and north of Lake Lanier outside Atlanta. It was beautiful 80 degree weather and we rode for just over 5 hours. Prior to launch, I verified tire pressures with the FOBO. They read 41.8 front and 48.2 rear. After a couple of hours we jumped on I-985 for about 15 miles or so at 75mph. Took an exit and got on the back roads again for 5 miles or so.

Stopped at a convenience store to get my bearings. When I looked at my phone(don't have it mounted yet) the FOBO system was giving me an alarm that the rear tire was at 58psi and 113 degrees. I put my hand on the tire and it was barely warm.

Does that reading sound real for internal measurements?
No, that does not sound right. Using the ideal gas law, and assuming not a lot of moisture in the tire, I would expect about a 6% temperature increase going from 80 to 113 (300 K to 318K, approximately). So, your 48 psi should have increased to about 51 psi if the air temp in the tire really was 113.
 

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Wrencher Extraordinaire
2005 K1200LT
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Sounds like the temp is off I routinely get rear pressures of 56-58 and 158 - 163F on my rear BT-020 in the summer from my SmarTire system.
 

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Sounds like the temp is off I routinely get rear pressures of 56-58 and 158 - 163F on my rear BT-020 in the summer from my SmarTire system.
Thanks, mine is also a brand new BT-020. I'll have to read up on the sensor, maybe something needs to be reset.


For other posters, I am using metal stems. They came with the FOBO kit and are exactly the same straight short stems sold by Kurvey Girl for the LT.
 

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Sounds like the temp is off I routinely get rear pressures of 56-58 and 158 - 163F on my rear BT-020 in the summer from my SmarTire system.
This is more inline with the ideal gas law. 160 F is a little over 344 K which is about 15% more than 300 K which corresponds to 80 F. So, 48 psi @ 80 F would be 55 psi @ 160 F according to the ideal gas law. Given that moist air is not an “ideal” gas, the fact that John is seeing a little more than a 15% increase isn’t surprising.
 

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Wrencher Extraordinaire
2005 K1200LT
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Don't you just love engineers. Fixing things you did not know were broken in ways you can't possibly understand.
 
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