GSXR 600 from year 2001 to 2003. Genuine Suzuki Engine cam chain & guide rails. There is a s mall chip in the bottom of one of the guide rails but should not affect the use. Suzuki part numbers - 12760-39F00 / 12771-39F00 / 12811-39F00 / 12782-35F11 / 12812-26B02.