SUNSTAR 39515 Front Countershaft Sprocket, 15-Tooth, 520 Chain

The SUNSTAR 39515 front countershaft sprocket is designed for use with a 520 chain and features a 15-tooth configuration. It fits 2001–2011 Yamaha FZS1000 FZ1 models as specified, providing a direct replacement option for compatible applications.

Manufactured from case-hardened chromoly steel, this sprocket is built for strength and durability. Its Parkerizing surface treatment helps resist rust and corrosion, supporting dependable performance in demanding riding conditions.

Verify your motorcycle model, year, chain size and required tooth count before installation. This product is identified by SUNSTAR part number 39515 and supplier SKU 1-39515.

Features:

• Construction: Manufactured from case-hardened chromoly steel for strength and durability
• Surface Treatment: Parkerizing finish for rust and corrosion resistance
• Configuration: 15-tooth front countershaft sprocket
• Chain Size: Designed for a 520 chain
• Fitment: Fits 2001–2011 Yamaha FZS1000 FZ1 models as specified
• Brand and Part Number: SUNSTAR 39515

Fitment:
1998 Yamaha YZF-R1
1999 Yamaha YZF-R1
2000 Yamaha YZF-R1
2001 Yamaha FZS1000 FZ1
2001 Yamaha YZF-R1
2002 Yamaha FZS1000 FZ1
2002 Yamaha YZF-R1
2003 Yamaha FZS1000 FZ1
2003 Yamaha YZF-R1
2004 Yamaha FZS1000 FZ1
2004 Yamaha YZF-R1
2005 Yamaha FZS1000 FZ1
2005 Yamaha YZF-R1
2006 Yamaha FZS1000 FZ1
2006 Yamaha YZF-R1
2006 Yamaha YZF-R1 LE
2007 Yamaha FZS1000 FZ1
2007 Yamaha YZF-R1
2008 Yamaha FZS1000 FZ1
2008 Yamaha YZF-R1
2009 Yamaha FZS1000 FZ1
2009 Yamaha YZF-R1
2010 Yamaha FZS1000 FZ1
2010 Yamaha YZF-R1
2010 Yamaha YZF-R1 LE
2011 Yamaha FZS1000 FZ1
2011 Yamaha YZF-R1
2012 Yamaha FZS1000 FZ1
2012 Yamaha YZF-R1
2013 Yamaha YZF-R1