Keep mine in the right side fairing pouch. On the TBTA bridges here (Throgs Neck, Whitestone, etc), there is a sensor just as you are entering the gated lane, so a bike should be in the left tire track of the lane to trip the sensor. Otherwise the transponder will not be read and the gate will not go up. Then the TBTA cop comes out and need to take your transponder and stick it on the manual transponder reader and hit this big button on the reader column to lift the gate. Its the only time I have trouble with EZPass.
On my way to Laconia last year on I93, my EZPass didn't get read and I never got a bill or got charged. I suspect my plate is too far under the TourPak to be photographed.

 

Celebrate the diversity.

 

Inside the fairing about 6 inches down from the windshield, directly under the eagle. Hasn't failed yet.

 

Awesome thank you for the link and thank you to the OP for posting this and reminding me i wanted to get one of these.

Batman

 

I don't know about motorcycle transponder in a car, but when I lived in PA I used my automobile transponder on my bike all the time, as I now do in Ohio. My wife did, & does, do the same as many of my friends do.

I think if you check, you'll find that the EZ Pass gives all passenger vehicles a discount in those states that offer them. I know for a fact the rates in Ohio are less with an EZ Pass. They want you to have a separate transponder for each vehicle & say you must - but if that is true, what about rental cars?

We've had (2) EZ Pass transponders for about 10 years or so, one for each of our cars, and swapped them to our bikes anytime we were going to be on a toll road without incident. I've even loaned mine to friends that were traveling (when I knew I wasn't going to be using it) so they would have the convenience & get the discounted toll rates. It has never been an issue; this has been primarily in Pennsylvania & Ohio.

 

One thing I haven't seen mentioned here regarding mounting in inaccessible locations like in the fairing- when I ride to the Outer Banks there's one toll bridge that's much cheaper for motorcycles than cars. My state's EZ Pass program gives the same transponder to a bike as it does to a car, so I have to bag the transponder so it doesn't read and I can pay cash.
I imagine there are many more tolls around that have a cheaper motorcycle rate.

 

That would be one disadvantage to putting the transponder in the fairing; if you traveled that route often enough it could cost you an appreciable amount of money.

 

I tried calling Ohio EZpass to ask about a motorcycle transponder, but after getting passed between a bunch of people with no clue I gave up on that idea and just use the one from the car. Maybe someday Ohio will catch up with places like Colorado and replace the gates with a system that can read at full speed and use transponder stickers or plate readers