Conventional Street kit with laser-cut steel rear sprocketGearing one down in front, two up in rear Yamaha -- YZF-R1 -- (2001, 2003, 2002, 1998, 2000, 1999)
Conventional Street kit with laser-cut steel rear sprocketGearing one down in front, two up in rear Yamaha -- YZF-R1 -- (2009, 2014, 2013, 2010, 2012, 2011)