TPMS

[LKLD]

Just got the Doran 360M today, and will add it on next week. After looking at all the parts in the box, I find them quite extensive, they even put in two sets of valve stems (1 set is 90*). Installation looks simple enough, but I'm sure I can complicate that. Anyone else install these or others?

[Queensland Ken]

I had a set, sorry to say that I didn't like them.
One sensor failed within a few days, then they bent my cheap set of right angled stems.
I'm lead to believe that you "can't" mount them on normal rubber valve stems, some tech article I found out about after the fact.

I also allowed an extra PSI or two for when you fitted the sensor unit back on to the valve stem after adding air.
I finally bit the bullet and bought a real good pair of right angled valves and check the tyres at least once a week with a calibrated gauge.


I fitted a set of Orange Electronics Motorcycle Tire Pressure monitors to my mates bike, much better system.
And it did work for him when he got a large rip in his rear tyre.
It took a bit to balance out his tyres when we fitted them, about an extra 50 + grams of weight.

[LKLD]

Hmmm, good info to know, thanks.

These weren't so I didn't have to check pressure before rides, though they should work for that, but to know if they drop pressure while riding. I'll have to keep an eye on them for sure though.

[Queensland Ken]

I reckon any type of device to make things safer is a good investment.
Just wish you could get an internal pressure transducer that's fitted with a right angle valve, it would be impossible to fit. lol lol

[raYzerman]

If you use Doran's right angle stems, you must put the front sensor inside the tire as there's no clearance for the brake calipers. Also you have to angle the 90 degree stem. The rear can be externally mounted if you wish (I recommend). Sensors will last approx. 2 years or more if you leave them on the bike. They transmit continuously in presence of air pressure. For winter storage, jack up the front wheel and let all the air out, and an external rear sensor can be simply removed. Sensors are about $25 directly from Doran and they are quick to deliver.
On another forum, I read too many issues with the Orange system, including the threat of them going out of business.

[LKLD]

Well, I had planned on mounting them externally at first, then internally on tire change w/ 90* stems. Are there any concerns mounting them internally?

[raYzerman]

No concerns. You know exactly where it is, and they don't inhibit tire changes much at all. No need to put the rear one internally. I don't think you can put the front one externally unless you already have a straight steel valve stem. Don't put them on a rubber stem!! Nevar!

[LKLD]

Yeah, they did a good job of pointing that out with their materials. Warnings everywhere about NOT using them on rubber stems.I just wait for the tire change, and install them then.

On installing the unit itself, I want to connect it to a switched circuit to eliminate the power drain. Any ideas of which would be easiest to connect to...powerlet?

[LKLD]

Update:

I put on BS BT-23 GT's and the straight metal valve stems that came with the sensors. I tapped into the switch on the glovebox for power. All is well so far. These will be a "piece of mind" thing, until they give a pressure warning, then they will be a possible life saver. This was a very simple install.