I converted my well worn and well maintained 2004 Brodie Energy hybrid to the D-50 E-Bike kit. Not only was the delivery super fast, it was easy to put together and the result is beyond my expectations. The total net weight gain to my bike was just under 10 lbs. Brodies original ‘Energy’ insignia on my bike is humorously ironic as well! I’m looking forward to getting back to commuting to work under *my* terms and conditions. I’m able to vary my assist level as I wish an obtain the level of exercise suited for my situation at the time. (I’m talking about those Monday mornings many of us dread) Previously, I had tried to rationalize with the hills and ask for mercy, but they always seemed to ignore my pleas. Thanks Ali.