I rarely clean my cube, I fitted a dadass d. works incredibly well,but shall take it off ,as I'm not putting enough effort into cycling since,and let's face it, that's whats it's all about!
Mont Blanc Tow Ball Mounted 2 Cycle Carrier - 481000
is what I use,30kgs rating, I take a wheel off as I find my cube ebike, longer
than my cannondale push bike, without doing so it's too risky on the lanes.