Garmin Zumo Tire Pressure Monitor
Haven't gotten these to consistently work since first purchased!
I'll start off by saying Garmin support has been very good to deal with, offering to replace various (poorly designed/mfr) bits and pieces, however, I haven't got these to work since I bought them in April. Initially it was the rear that crapped out, and Garmin sent a replacement, no questions asked. But on my 11k mile ride to Alaska this summer, when I really needed these to function, forget it, both operated intermittently (barely) the entire trip, and have continued this way since returning. Just called Garmin again to complain (or ask for my $$$ back), and their response is to replace my 590 (still under warranty)! What's interesting is I thought, maybe, just maybe it's battery related, and when I tried to p/u new batteries, Batteries Plus says the ones in the sensors have been discontinued, and this is when I realized they don't even fit snugly in the unit, so maybe it's a case of the sensors loosing charge b/c of the poor battery connection, hence operating intermittently...hope to report more after Garmin sends a new 590....what a cluster!
August 26, 2015
Intermittant display and no tech help
What has happened to me and others, using the 590 with these, is the rear wheel sensor is intermittent. We have confirmed it isn't the sensor but apparently a software issue. We have sent Garmin files of info they requested, April 2015, and there has been no response.
I recommend that if your rear is intermittent you get your money back because you will not be able to use the rear one. If it works then be grateful.
August 4, 2015
Great Add on !
The tire pressure monitor is a Great add on to My Zumo 590LM
Helps me keep an eye on loss of pressure. Easy to install and pair up.
June 28, 2015
These caps send a signal with the tyre pressure to the GARMIN ZUMO GPS. It`s a nice gadget to have on a motorcycle, specially when you travel. Works just fine, no problems to set up, easy and fast.
May 21, 2015
Great product with important info
Work as advertised, allows you to monitor tire pressure,
April 20, 2015
EXCELLENT RELIABLE DESIGN
Three question about the Garmin TPMS: Is it accurate? Is it reliable? And, is it safe?
Been using the Garmin monitor caps for 3 months/ >1300 miles.
Accuracy: The Garmin monitors consistently read a little less than 1# low when compared to two different US-made quality dial gauges, both of which give readings that are +/- 0.4# to the other. Truth to tell: the Garmin monitors are probably more accurate than the reference gauges.
Reliability: the bike has seen near-daily use since the TPMS was installed. Only once, the front low battery warning came on while riding last winter in 24 degree weather at 70+ (+++?? ;) ) MPH. When stopped, the cap warmed up a few degrees and the warning disappeared. Even then, the TPMS never failed to give a reading. I've not yet had to replace the factory supplied batteries.
Also, they do not leak: the tires were filled to 40#F/42#R when the TPMS caps were installed 3 months ago. In that time they have lost only 1.5# front / 1# rear -- no difference in loss from the previous loss rate (measured cold, with ambient temperature 60-68F in the garage).
Safety concerns: I have angled machined, (solid) one-piece, (racing) valve stems installed on a FJR1300A, and was concerned that the extra mass might apply undue force to the stem elbow, causing a flat due to structural failure there. Per online specifications, the caps have a mass of 8.5g, including the battery. Measuring the distance from the center of the axle to the center of the cap on each wheel gives the torque arm, and by knowing the tire size you can find the wheel RPM for any given speed. This information combined allows you to calculate the centrifugal force applied to the valve stem by the TPMS cap. (Don't sweat the math: there are on-line calculators for this!) Empirically, the one-piece racing stems installed will support more than 10 lbs at the tip without any evidence of movement or deformation. Calculations revealed that the force applied to the stems at 70MPH was 3.9 lbs front and 3.4 lbs rear. Even at 100 MPH (calculated!) the results were only 8.0 lbs front /6.9 lbs rear. Bottom line: I'm not worried...
These caps not only allow the tire pressure to be checked at the start of each ride (important to do but a hassle before), but to follow how weather and riding style influence the pressure at speed. Easily one of the most useful add-ons I've purchased. HIGHLY RECOMMENDED.
April 12, 2015
Peace of Mind...For a Bit More Cost
I bought a pair of these bundled with a 590LM and got a very good deal. I probably wouldn't have bought them ala carte at MSRP.
Super simple to use just screw them on like valve stem caps. Very accurate to 0.1 PSI and battery life seams reasonable. It's also fun to watch tire pressure climb as you ride and/or at more assertive speeds.
Reminder that you need to have solid valve stems to run these as rubber stems would flex too much and risk breaking. I have used them on the 81 degree aluminum stems and work well at highway speeds. I hope FJR nominal speeds aren't an issue.
December 15, 2014
FAST SERVICE WILL DO BUSINESS AGAIN!
Easy instructions fast install and paringFAST SERVICE WILL DO BUSINESS AGAIN!
August 11, 2014