Which country are you in Robinb?
Different markets seem to have different specifications for the Euro 4 i.e.
British reports list these among the differences between E4 and E5:
- switchable ABS at the rear added to E5
- a hazard warning switch added to E5
Those desirable-to-me features are present on my E4 bike bought four months ago today, in Australia.
The desirable features, in my eyes, that the E5 has are:
- Tripper’ turn-by-turn navigation system
- larger screen to encompass the tripper
- an additional plate on the rear carrier, which is lower, so easier to swing your leg over
- 3 years warranty and roadside assistance as standard ( only 2 years on my E4)
- shorter side stand
The undesirable features:
- weight seems to go up from 188 to 199kg but I have seen quite a range of weights quoted
for each version so nothing definitive available - note that the RE Australia site quotes the same weight of 191kg for each
- the fuel tank side racks are smaller, good if you’re a tall rider for knee clearance, less useful if you wanted carry bigger side bags or jerry cans.
As for the mechanicals and electronics and ability to modify, my understanding is that it can’t be done at this stage, after watching the YouTube channels like those by Hitchcock, TEC and Nathan the Postman.
Nathan commented that the standard fuelling did seem to be smoother with E5 though.
FWIW, with an anticipated price rise thrown in to the mix of pros and cons, I went for the E4 which was right in front of me and collectable within two days.
The E5 went up A$500, which is not too bad given the desirable improvements.
However, harder bargaining was/should be possible for a superseded E4.
HTHs