Adding Harley TPMS to Tri-Glide

rangemaster728 said:

I went down the path of investigating retrofitting HD TPMS to my ‘21 Tri Glide last year shorty after purchasing it…to make a (very) long story short, here’s what I found:

1. CVO wheels have a different valve stem hole size than the standard Tri Glide wheels… so CVO sensors cannot be used with your standard triglide wheels. The sensors also have a different internal profile and are mechanically “keyed” (a small projection that fits the profile of the wheel ) so they will fit CVO wheels.

2. While the radio is essentially the same, and the LCD Display on the gauges will cycle through front, left rear and right rear for tire pressure, the system is looking for custom sensors Harley made by LDL technologies in France. Standard automotive sensors will NOT work or talk to the system because the LDL system uses a different Communications protocol. I tried.

3. You could retrofit CVO wheels and sensors ($$$) to a standard Triglide, but in using the internal Harley system you will not have the ability to adjust the warning threshold for tire pressures. As we know most of us run lower tire pressures then factory for a better ride. This would be annoying after the first 5 miles to keep getting alarms.

4. In the end, I went with a Fobo 2 external TPMS system with screw on sensors. I used an 83° metal valve stem on the front and have sufficient clearance so the front rotor does not interfere. Kurveygirl.com had the valve stems.

The Fobo system has the ability to set tire pressure warning levels and the app runs on my iPhone, which will also show up on my radio display on the trike as I have CarPlay.

Click to expand...

rangemaster728 said:

I went down the path of investigating retrofitting HD TPMS to my ‘21 Tri Glide last year shorty after purchasing it…to make a (very) long story short, here’s what I found:

1. CVO wheels have a different valve stem hole size than the standard Tri Glide wheels… so CVO sensors cannot be used with your standard triglide wheels. The sensors also have a different internal profile and are mechanically “keyed” (a small projection that fits the profile of the wheel ) so they will fit CVO wheels.

2. While the radio is essentially the same, and the LCD Display on the gauges will cycle through front, left rear and right rear for tire pressure, the system is looking for custom sensors Harley made by LDL technologies in France. Standard automotive sensors will NOT work or talk to the system because the LDL system uses a different Communications protocol. I tried.

3. You could retrofit CVO wheels and sensors ($$$) to a standard Triglide, but in using the internal Harley system you will not have the ability to adjust the warning threshold for tire pressures. As we know most of us run lower tire pressures then factory for a better ride. This would be annoying after the first 5 miles to keep getting alarms.

4. In the end, I went with a Fobo 2 external TPMS system with screw on sensors. I used an 83° metal valve stem on the front and have sufficient clearance so the front rotor does not interfere. Kurveygirl.com had the valve stems.

The Fobo system has the ability to set tire pressure warning levels and the app runs on my iPhone, which will also show up on my radio display on the trike as I have CarPlay.

Click to expand...

ksuvalk said:

Funny - I had posted earlier about issues with clearance on the external sensor on my front wheel ('014 Tri-Glide) and I had just been researching and wondering if a right angle metal valve stem would work. Sounds like you've done that and it's working for you.

I had also wondered if using a shorter valve stem would work, but at this point I think I'll give the angled one a try. Just gotta wait until I am having something else done with the front wheel/tire and it's worth the money to get that valve stem replaced.

Click to expand...

rhino 2 said:

What happened's when both are low......:laugh:.....

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kdog said:

I have a 2014 Tri Glide and ended up adding a 3rd party option:

https://sykik.com/collections/wireless-tire-pressure-monitor/products/tpms-trikes

I like it- went with the option that has a display I mount on the bike, but I think they have an option that pairs with your phone if you want as well.

HOWEVER- I found out the hard way that mounting the device on the front tire valve stem doesn't work out of the gate because it ends up hitting the caliper assembly on rotation. Found that out by losing it while on a trip.

The solution is to buy an angled valve stem and put that on the front. I plan to do this when I change the front tire so until then am just running TPMS on the rear tires.

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ksuvalk said:

Yeah here's some more info and pics. The one pic I forgot is that there is a monitor that I mounted on my bars and the monitor is what pings the three tire sensors and gives me a display of tire pressure, tire temp, and any warnings I have configured.

As the pics show, there is very little clearance on my '14 Tri-Glide between the valve stem cap and parts of the brake caliper assembly. So you can imagine that when the tire sensor is on the valve stem, it's just bigger enough that it is hitting against that caliper assembly. When I had the sensor on, and manually rotated the tire, I could see it hitting just a bit against the caliper assembly. So I'm guessing that's why both the sensor and its little locking nut both disappeared mid-ride.

Other than this issue, I am pleased with the TPMS system. You can also get internal vs external sensors, but this requires that you take off the wheel and tire and replace the valve stem needle stuff which is a lot more work than just screwing on the external sensors.

I will still research if I can get a slightly shorter valve stem for the front tire- that would likely solve this issue for me.

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