MetalGear Brake Disc Rotor: Replaces Buell 45117-94Y and 45117-98Y. Fits BUELL M2 Cyclone 1997-2002, BUELL S1 Lightening 1997-1999, BUELL S1 White Lightening 1998-1999, BUELL S2 Thunderbolt 1995-1996.Brake disc rotor: 240.0mm outer diameter, 105.0mm inner diameter, 5.0mm thick.This brake disc rotor is a direct-fit replacement for: BUELL M2 Cyclone 1997-2002 BUELL S1 Lightening 1997-1999 BUELL S1 White Lightening 1998-1999 BUELL S2 Thunderbolt 1995-1996 BUELL S2T Thunderbolt 1996-1998 BUELL S3 Thunderbolt 1997-2001 BUELL S3T Thunderbolt 1997-1999 BUELL X1 Lightening 1999-2002 MetalGear International is an Australian owned and operated manufacturer of motorcycle braking components. Since 2003 we have produced reliable, durable, premium quality products that meet and often exceed OEM quality and tolerances. Our range of motorcycle brake discs and pads is one of the largest in the world. Products are constructed using the highest grade materials. 1 year warranty with all