UPDATE!  Hill Topper complete bikes now available! 
I have gotten a lot of people asking lately if I still ride by bike with the Hill Topper kit on it, and if I still recommend it.  That's a big YES!  I am still using the second battery pack I bought as well, although I think I will need a new one by the end of the year.  And yes, my discount coupon code still works for you!  Follow this to the Clean Republic website, and when you check out your discount will be shown.  Have fun, and keep riding!