At DMG Motorsports, we present the Vortex Front C/S Sprocket Steel 15T-520 (3258-15) — a precision-built 520 chain conversion front sprocket engineered specifically for BMW S1000RR models. Built by Vortex Racing, a U.S.-based manufacturer trusted by professional race teams for over 20 years, this sprocket is designed to deliver a stronger, quieter, and longer-lasting drivetrain component for street or track use. Whether you're converting your S1000RR to a lighter 520 chain setup or simply replacing a worn factory sprocket, this Vortex piece is built to hold up to serious riding demands.

Features:

• Precision manufactured and induction hardened to precise tolerances for improved consistency, strength, and durability
• Constructed from chromoly steel for a stronger, quieter, and longer-lasting sprocket
• Zinc/corrosion-resistant plating helps protect against rust and the elements
• Drilled lightening holes reduce rotating mass for quicker acceleration and reduced drivetrain inertia
• 15-tooth design for 520 chain conversion setups
• Fits BMW S1000RR models
• Manufactured to the tightest tolerances using high-quality materials, backed by Vortex Racing's motorsports pedigree

Fitment