I had ZFE issues a couple of months ago and bought a ZFE high from a 2009 RT expecting it, in my ignorance, to work. It got me by to take my holiday, but it wasn’t compatible. Mine’s a 2012 GSA with Led rear lights and a fuel float. The rear light warning was on, but the light worked, the fuel gauge didn’t work and the suspension only had the rider, pillion and luggage settings. I’ve since found the correct one for handy money. I now have the RT one available if anyone needs one.