how heavy are they, i always imagined them as a fun-to-ride bike so it gave me the impression of being light? is it?
Ill probably get flamed for saying this but are you sure you wanna race this bike??? I dont have much racing experience but both times at Daytona (CCS) I watched the Buell dudes pushing there bikes back to their pit. They just dont seem like a dependable bike for racing IMO if you want a twin go with an SV650, they're a blast to ride.
A friend and I swapped rides at a track day earlier this year- he works for HD and races an XB12 and an older tube frame model. His XB felt slow, but RAN away from my '03 SV on the straights. I only did 3 laps on it, couldn't get used to the weird handling- it felt resistant to turn in, then when leaned far enough did a little wobble and settled and held a tight line easily. He stayed out the whole session and came back all grins...said "if I didn't work for HD I'd be racing one of these!" His bike has all the usual goodies- chain conversion and carbon ram air being the most noticable. I understand wanting to do something "different", but I don't think the Buell route is worth it.