Today was my first day commuting with my Raleigh Detour IE-- and the ride went well. What didn't go so well was getting my Blackburn Rear Central pannier bag to stay on the rack (this fit my regular bike, but that never did end up getting used to commute). So two questions: first, is it incompatible with my e-bike or am I doing something wrong, and second, any recommendations for a pannier(s) for a laptop on one side, and when needed, to pack clothes/ groceries/ battery, etc on the other.