Supersprox CST1539142 Front Countershaft Sprocket Steel Sprockets - 14T 520

The Supersprox CST-1539-14-2 is a 14-tooth front countershaft (drive) sprocket engineered for 520-pitch chain applications. Built to Supersprox's race-proven standards, this steel sprocket delivers a significant durability advantage over standard OEM and budget C-45 steel sprockets.

Key Features:

• SCM-435 Carbon Free Steel Construction — Carbon-impregnated for a refined core structure that resists tooth breakage even under heavy wear
• Ultra-Hard Surface Layer — A 0.5mm case-hardened surface minimizes friction and prevents power loss caused by chain drag
• Grooved Teeth Design — Channels dirt and debris away from the contact surface to maximize sprocket and chain life
• Radial Lightening Holes — Fully lightened profile reduces rotating mass without sacrificing strength
• CNC Machined — Precision machined for consistent fit and smooth, efficient chain engagement
• 14 Teeth / 520 Chain Pitch

Supersprox countershaft sprockets are developed in partnership with factory racing teams competing in WSBK, WEC, MXGP, and Rally, ensuring every part meets the demands of both track and street use. The CST-1539-14-2 is a direct-fit replacement front sprocket designed as a stock or gearing-change option.