When I lived in San Francisco, I had a Fastrak pass and instead of mounting it, I just put it in one of my front jacket pockets and the transponder always worked and deducted from my account correctly. So in my experience the transponder in the electronic pass does not need to be visible or have a direct line of sight for the toll antennas to communicate.
Now that I'm in New York, I still need to get an EZPass but I'm assuming the same would apply and I can put it in my jacket. I've seen some different mounting solutions on Amazon where there's a holder with suction cups that can be placed on the inside of the windscreen or holder that mounts on handbar. Velcro strips can also be used or it can be a DIY project to make something custom that works.
Once some taller aftermarket OEM windscreens are available, I'll probably use velcro to mount since it will be less visible with a dark windscreen. I'm not sure if I would trust the suction cups since there's always a chance the holder could fall off.
Here are some links of some pass holders on Amazon. The leather one is pricey could be mounted somewhere on the bars or cutouts in the middle. Possibly other cheaper options on eBay or more google searching.
https://www.amazon.com/Holder-Trans...&sr=8-3&keywords=ezpass+holder+for+motorcycle
https://www.amazon.com/dp/B009Y7MJV...82a5-9055dc78c36a&ie=UTF8&qid=1524830820&sr=1
https://www.amazon.com/Leather-Pass...4830791&sr=8-1&keywords=ezpass+for+motorcycle
Now that I'm in New York, I still need to get an EZPass but I'm assuming the same would apply and I can put it in my jacket. I've seen some different mounting solutions on Amazon where there's a holder with suction cups that can be placed on the inside of the windscreen or holder that mounts on handbar. Velcro strips can also be used or it can be a DIY project to make something custom that works.
Once some taller aftermarket OEM windscreens are available, I'll probably use velcro to mount since it will be less visible with a dark windscreen. I'm not sure if I would trust the suction cups since there's always a chance the holder could fall off.
Here are some links of some pass holders on Amazon. The leather one is pricey could be mounted somewhere on the bars or cutouts in the middle. Possibly other cheaper options on eBay or more google searching.
https://www.amazon.com/Holder-Trans...&sr=8-3&keywords=ezpass+holder+for+motorcycle
https://www.amazon.com/dp/B009Y7MJV...82a5-9055dc78c36a&ie=UTF8&qid=1524830820&sr=1
https://www.amazon.com/Leather-Pass...4830791&sr=8-1&keywords=ezpass+for+motorcycle