I have had my Carrera E-Vengeance for three years now and, on balance, it was a good bargain-basement buy. However, on two occasions it has had a soaking; the first was when I got caught out in a cloudburst, the second was when I decided to jet-wash it after a particularly muddy journey. After both occasions the hub motor became very rough and noisy, fortunately only temporarily. I find this odd as it seems very well sealed against water ingress. I would have liked to lubricate it but, again, there appears no provision to do so. Any ideas or comments, please?