I broke my screen two weeks back and since I'm looking for a replacement. I found the following information online and I'm sharing it for those in need.
The best prices I found it at Harley-Davidson® Parts, Accessories and Clothing
. I hope they will send it fast.
These part numbers are for the ’00 Buell Cyclone M2 fly screen
1 . Primed windscreen: 59772-97Y $42.95 (others have used a Lockhart Phillips carbon fiber flyscreen: 427-1152 $84.95)
2 . Right windscreen bracket: 59745-97Y $3.75
3 . Left windscreen bracket: 59746-97Y $3.75
4 . Rubber trim: 53773-97Y $1.25 (optional)
5 . Well nuts (4): 59736-94Y ($0.60 each) $2.40
6 . Nylon washers (4): 7047Y ($1.00 each) $4.00
7 . Windscreen bolts 8X3 (4): AN0806.3CBL ($0.45 each) $1.80
8 . Velcro: Use the “soft” side of a strip of generic velcro on the top of each gauge pod to protect them from the screen.