Thought I'd share my experience with this process. A lot of this information can be found buried in other threads but here it is all up front:
I have the GTS. I used the CVO TPMS sensors. I initially ordered them from our favorite online discount Harley dealer but after waiting a couple weeks, I got a message they were on back order. I went to my local dealer and paid retail plus tax minus 10%. Around $180. I also ordered the FOBO t-valves for the gaskets that some have said are needed for stock rims with 11.3mm valve stems. What I didn't realize, when you order from FOBO, they come from Malaysia (ordered July 22, received 9 Aug). I couldn't find them anywhere else online that sold them except Wingding or something like that but they cost about $10 more (not sure if they stock them though). But nonetheless, they're not needed. I can break down my tires myself so I experimented.

The Valve on the left is a cheap-o from amazon (11.3 mm) and the one on the right is the TPMS valve. If you look at the the base that goes into the rim, they're basically the same size.

This is the 11.3 mm, it takes up most of the space in the rim.

This is the TPMS (8.3 MM) in the rim. The gasket sits flush in the hole. I installed the sensor, put the tire on, aired it up, and no leaks. The TPMS sensor screws on clamps it tight and seals it. If you want, you can opt to use the the FOBO gaskets (I did because I ordered them) and it will go over the valve stem and take up that space. It does make it a PITA getting the sensor screwed on though.

After installing, I took the bike to HD and the tech did his thing ($58). It was his first time but he figured it out. He made me real nervous at first because he said if he flashes the ECM it would lock it or something like that. (not sure where the ECM comes in to play with this process of changing the BCM and Radio customization) I didn't see what he was seeing but it all worked out. If anyone decides to do this, I highly recommend going to the dealer and talk to them to make sure they are willing to do it. Apparently there are alternatives to the Digitech but I can't speak on it.

I don't have an icon in my gauges nor will the air pressure show in the odometer. I'm pretty sure I'll get the pop up if the air pressure is low similar to the low fuel message.
It was a cool little project.

 

Anyone with 1 of several tools can Reg the TPMS sensors to the bike. Simple stuff. Just did it on my 2020 everything works as it should.
You have the GTS on a 2017 did you upgrade it ?

 

I did this on my 2019 Road Glide Ultra at the time of purchase. I also purchased chrome Agitator rims at the same time. They take 8.3 mm valve stems so the CVO TPMS sensors fit fine. I wasn't aware of the different valve stem sizes at the time so it was just luck that everything worked as needed. Luckily the tech that worked on my bike was very open to trying to make this work even though the parts people said it wouldn't. My radio displays the tire pressure info just fine but I was hoping to also have that in my odometer window also so I had the dealer turn that option on with the Digital Technician. Unfortunately that didn't make a difference and there was no pressure reading in the odometer. Fast forward 2 years later and I had my bike in to the dealer try and get the speedometer calibrated because it was reading low. Some people say that can be done using the Digital Technician. The tech didn't think the calibration could be done but said he'd give it a try. He couldn't find anywhere to do it but at the same time he found there was an update of some type to the speedometer firmware so he installed that hoping it might solve my calibration issue. Unfortunately it didn't solve the calibration issue but it did allow the tire pressure info to appear in the odometer window. All of my gauges now act like the 2020 and newer bikes in that all the warning lights illuminate and the needles do a full sweep when the bike is first turned on.

 

Yes the speed can be calibrated. I have the centurion.

https://technoresearch.info/diagnost...ion-super-pro/

 

It was actually the support people at TechnoResearch that told me the HD Digital Technician can also do the calibration. I figured I'd do everything through the HD dealer if I could but they don't seem to know how to do it. I even reached out on this forum to see if there were any HD techs familiar with the DT for doing it but nobody responded.

Thanks.

 

Very cool! Smitty can you do the stereo/audio programming with the Centurion? I am narrowing my choices for a tool. Thank you, sir!

 

Hey there - I would like to do this on my bike. I have a 2017 Limited. I am mounting on 2022 ST rims on my bike. To confirm all I will need is the CVO TPMS sensors (OEM) for a 2017 bike? Does this change if I am using a new rim?