Steve F wrote: Just an endorsement to SilverFox's comments on success with the Liber-t tag gizmo. My wife and I, on separate bikes, and with a tag gizmo each, used several toll Autoroutes en route from France to Switzerland on a recent tour. Likewise, we kept the tag gizmo in our hi-viz jacket pockets, and the toll barrier sensors picked them up everyone time. 100% success! Now that we've used the Liber-t tags on two separate journies through France this year, they will only cost us €6 maintenance fee for the year! I can thoroughly recommend them. Anything to avoid the faff of you or your pillion having to scrabble about with cash or cards at the toll plazas. Gotta be good!
I thought about one of these, but on my last trip a couple of weeks ago, the tolls were no hassle at all, had a small tank bag where my card was and where I chucked the ticket in and all worked extremely well.