I'm thinking of converting my wife's Novara Camera Pro to a mid-drive Ebike. This bike has an aluminum frame & drop handle bars. I'm looking at an ERad 500 W. motor and have not yet looked at batteries. I'm hoping for a range of 50 miles at an assist level setting of 1 on level terrain. My wife is about 160 Lbs. I'm completly new to this and looking for any advice and guidance this forum has to offer. Thank you.