SUNSTAR 42717 Front Countershaft Sprocket, 17-Tooth, 525

The SUNSTAR 42717 front countershaft sprocket is manufactured from case-hardened chromoly steel for strength and durability. Its 17-tooth design is intended for applications using a 525 chain.

A Parkerizing surface treatment helps resist rust and corrosion, supporting long-term performance in demanding riding conditions. The sprocket fits select KTM models, including the 2010–2012 KTM 1190 RC8 R, 2012 KTM 1190 RC8 R Race, and 2008–2011 KTM 990 Supermoto R, as well as the 2011 KTM 990 Supermoto and 2009 KTM 990 Supermoto T.

Verify your motorcycle application and chain requirements before ordering. This product is identified by SUNSTAR part number 42717 and SKU 1-42717.

Features:

• Construction: Manufactured from case-hardened chromoly steel for strength and durability
• Surface Treatment: Parkerizing treatment helps resist rust and corrosion
• Tooth Count: 17-tooth front countershaft sprocket
• Chain Size: Designed for 525 chain applications
• Fitment: Fits select KTM 1190 RC8 R, KTM 1190 RC8 R Race, KTM 990 Supermoto R, KTM 990 Supermoto, and KTM 990 Supermoto T models

Fitment:
2006 KTM 990 Adventure
2006 KTM 990 Adventure S
2007 KTM 950 Supermoto
2007 KTM 990 Adventure
2007 KTM 990 Adventure S
2008 KTM 1190 RC8
2008 KTM 950 Supermoto
2008 KTM 990 Adventure 4-Stroke
2008 KTM 990 Adventure S
2008 KTM 990 Supermoto R
2009 KTM 1190 RC8
2009 KTM 990 Adventure
2009 KTM 990 Adventure R 4-Stroke
2009 KTM 990 Supermoto R
2009 KTM 990 Supermoto T
2010 KTM 1190 RC8 R
2010 KTM 990 Supermoto R
2010 KTM 990 Supermoto T
2011 KTM 1190 RC8 R
2011 KTM 990 Supermoto
2011 KTM 990 Supermoto R
2011 KTM 990 Supermoto T
2012 KTM 1190 RC8 R
2012 KTM 1190 RC8 R Race