CNC Machined Billet Rear Sprocket Flanges are lighter and stronger (not to mention much better looking!) than your original.
Note:
The List Below of Older 748/916/996/998's have a Hub flange that has a Longer shaft than the Modern ones, you will need the FLD01S spacer
SUPERBIKE 748 R 1999
SUPERBIKE 748 R SINGLE-SEAT 1998-02
SUPERBIKE 748 RS 2000-01
SUPERBIKE 748 S 2000-01
SUPERBIKE 748 SPS 1998-99
SUPERBIKE 748 USA 1999
SUPERBIKE 748 1995-01
SUPERBIKE 916 SENNA 1994-98
SUPERBIKE 916 SP 1994-96
SUPERBIKE 916 SPS 1997-98
SUPERBIKE 916 1994-97
SUPERBIKE 996 R 2001
SUPERBIKE 996 R II 2001
SUPERBIKE 996 S 2001
SUPERBIKE 996 S USA 1999
SUPERBIKE 996 SPS 1999-00
SUPERBIKE 996 SPS II 1999
SUPERBIKE 996 SPS III 2000
SUPERBIKE 996 USA 1999
SUPERBIKE 996 1999-01
SUPERBIKE 998 R 2002