I should be okay with weight, my bike is already over 100 pounds less than stock.
The battery layout that works for me right now is this:
It's wide in the front (just like a big inline 4), and will definitely benefit from a full fairing. The piece floating above the rear tire actually fits under the seat.
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I'm hoping that with a CR750 fairing, I can get the bike up to 75 miles per hour, and I'm hoping for 50-60 miles per charge.