At DMG Motorsports, we present the Vortex Front C/S Sprocket Steel 17T-520 (3291-17) — a precision-engineered countershaft sprocket built for Yamaha riders who demand a stronger, quieter, and longer-lasting drivetrain component. Designed as part of Vortex's popular 520 conversion lineup for models such as the YZF-R1, R1S, R1M, and MT-10/FZ-10, this 17-tooth front sprocket is manufactured from durable steel and finished to exacting standards. Whether you're converting your bike's final drive to a lighter 520 chain setup or simply replacing a worn factory sprocket, this Vortex unit delivers the fit, finish, and reliability that racers and street riders have trusted from Vortex Racing's U.S.-based manufacturing for decades.

Features:

• Precision manufactured and induction hardened to precise tolerances for improved concentricity
• Delivers a stronger, quieter, and longer-lasting sprocket compared to standard OEM options
• Zinc coated finish to resist corrosion and extend service life
• Drilled lightening holes to reduce rotating mass for quicker acceleration
• 17-tooth design for 520 chain pitch conversion
• Fits select Yamaha models including YZF-R1, R1S, R1M, and MT-10/FZ-10
• Manufactured by Vortex Racing, known for tight tolerances and premium materials in racing components