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Can TPMS be retrofitted?
- Thread starter Dann
- Start date
I don't know about an OEM retrofit. I have a Tire Pressure Monitoring System for my motorhome. It uses a transponder that screws on in place of the valve stem cap. It reads pressure and temperature on a remote screen.
I have found it works well and when the sensors have an issue, the company response was good.
OM
I have found it works well and when the sensors have an issue, the company response was good.
OM
Was the TPMS an OEM system that was not installed? I mean can an owner opt in or out at time of purchase? From some past posts, it appears that there is an OEM system but it might take some reprogramming of the computer.
I found some past threads about aftermarket products:
http://forums.bmwmoa.org/showthread.php?68093-What-aftermarket-TPMS-fits-my-08-R1200RT
http://forums.bmwmoa.org/showthread.php?70300-Best-Aftermarket-Tire-Pressure-Monitor
http://forums.bmwmoa.org/showthread.php?40698-Tire-Pressure-Monitors
I found some past threads about aftermarket products:
http://forums.bmwmoa.org/showthread.php?68093-What-aftermarket-TPMS-fits-my-08-R1200RT
http://forums.bmwmoa.org/showthread.php?70300-Best-Aftermarket-Tire-Pressure-Monitor
http://forums.bmwmoa.org/showthread.php?40698-Tire-Pressure-Monitors
Dann
New member
Thanks for the replies
I found this system that looks interesting but I'm wondering how I could install it on my RT.
It won't fit on the handlebars. I would like to find a way to put it on a Ram ball (My GPS mount can support 3 ram balls)
http://www.ebay.com/itm/Steelmate-TP-90-TPMS-Motorcycle-Tire-Pressure-Monitor-2-Sensors-LCD-Display-A8BU-/281836678594?hash=item419ec66dc2:g:snQAAOSwA4dWKf1~&vxp=mtr
Edit: I looked at it again and the kit comes with a 3M double sided sticker. It can be glued to a ram ball adaptor.
I found this system that looks interesting but I'm wondering how I could install it on my RT.
It won't fit on the handlebars. I would like to find a way to put it on a Ram ball (My GPS mount can support 3 ram balls)
http://www.ebay.com/itm/Steelmate-TP-90-TPMS-Motorcycle-Tire-Pressure-Monitor-2-Sensors-LCD-Display-A8BU-/281836678594?hash=item419ec66dc2:g:snQAAOSwA4dWKf1~&vxp=mtr
Edit: I looked at it again and the kit comes with a 3M double sided sticker. It can be glued to a ram ball adaptor.
Last edited:
mikegalbicka
Back in the saddle again
Let us know how it works out. Looks very interesting and the price is right!
Dann
New member
I don't know but if you go to this page, there a are pictures of the valve stems on a wheel, they compare them to another brand to show that theirs are smaller.
http://www.ebay.com/itm/Steelmate-T...ash=item419ec66dc2:g:snQAAOSwA4dWKf1~&vxp=mtr
I had ride-on smart caps on my RT and had no problem with the front wheel valve which is on the side. These look even smaller.
jeffkruger
New member
The one thing I like about the OEM system is also something I don't like about it.
If pressure drops to whatever the system thinks might indicate a problem it illuminates the warning triangle on the dash. That's typically great as you hopefully learn about a potentially developing problem before handling suffers. When it is less than great is when the integrated batteries start to fail it will also illuminate the triangle. I had that happen during a trip and would reset it with my GS911 but it would come right back. My concern is that having the triangle on continually for a non real problem means that if another event occurs that might trigger the triangle it could be missed.
Overall I like the OEM system. It's nice to be able to get an idea if pressures at high elevations on hot roads and such. If I didn't have it I think I would probably add something.
If pressure drops to whatever the system thinks might indicate a problem it illuminates the warning triangle on the dash. That's typically great as you hopefully learn about a potentially developing problem before handling suffers. When it is less than great is when the integrated batteries start to fail it will also illuminate the triangle. I had that happen during a trip and would reset it with my GS911 but it would come right back. My concern is that having the triangle on continually for a non real problem means that if another event occurs that might trigger the triangle it could be missed.
Overall I like the OEM system. It's nice to be able to get an idea if pressures at high elevations on hot roads and such. If I didn't have it I think I would probably add something.
I also have the oem sys. How do you change out the batteries and what is the number for the batteries?
Bernie
The OEM replacement sensors run about $149 each, not designed to be serviceable. Have seen some live five years, others gone in two seasons.
There are folks who have taken the unit apart and replaced the button battery, some have destroyed the plastic case trying.
Old thread from adv site:
http://advrider.com/index.php?threads/08-gsa-tire-pressure-monitoring-problem.835465/#post-27797181
There are folks who have taken the unit apart and replaced the button battery, some have destroyed the plastic case trying.
Old thread from adv site:
http://advrider.com/index.php?threads/08-gsa-tire-pressure-monitoring-problem.835465/#post-27797181
Dann
New member
One more reason for me not to go OEM for the TPMS
I'm not ready to spend over $300 every couple of years on new new modules because the batteries dies. (It's like buying $300 batteries)
This is the complete list of material needed for a retrofit (Includes alarm system which is on the same module)
deilenberger
A bozo on the bus
$10 for a 120 Ohm resistor? I'll sell them for $5 every day of the week (cost is about $0.10..)
mikegalbicka
Back in the saddle again
Nice job. Keep us posted on how it works over the long haul.
Dann
New member
Thanks,
I didn't get to ride with it yet.
In QC bikes are not allowed on the roads between Dec 15 and March 15. The law requires winter tires on all vehicles.
I'll be able to take it out in a few days.
What I can say so far is that after I installed it the tire pressure displayed on the monitor was spot on with with the readings from Accu-Gage pressure gauge.
ItsPhilD
New member
I bought a used 2008 RT and was surprised to see there was no TPMS. So I bought the Garmin Zumo 390 and their valve stem cap sending units. Also had to purchase a metal valve stem for the rear because the centrifugal force will rip the rubber stem right out of the rim.
Also I like the fact that I get an actual tire pressure reading and not a theoretical one if the temperature was 68 F that the BMW system gives you. I live in AZ, it ain't 68 F for 8 months of the year.
Also I like the fact that I get an actual tire pressure reading and not a theoretical one if the temperature was 68 F that the BMW system gives you. I live in AZ, it ain't 68 F for 8 months of the year.
