Vortex 203B-37 Steel 37-Tooth Rear Sprocket

The Vortex 203B-37 is a 37-tooth steel rear sprocket engineered for high-performance motorcycle applications. Built to Vortex's exacting standards, this sprocket is manufactured from a specially formulated carbon steel alloy and finished with an electro-plated satin black coating to resist corrosion and deliver lasting durability under demanding conditions.

Key Features:

• 37-Tooth Configuration – Precise tooth count for optimized final drive gearing
• Carbon Steel Construction – Specially formulated carbon steel alloy per Vortex specifications for exceptional strength and wear resistance
• Satin Black Finish – Electro-plated black coating provides corrosion protection and a clean, race-inspired appearance
• Patented Tooth Design – Vortex's unique tooth profile increases sprocket longevity and promotes smooth chain engagement
• CNC Manufactured – Precision machined in the USA to the tightest tolerances in the industry
• Race-Proven Performance – Tested by top professional race teams in Motocross, Supercross, Road Racing, and Flat Track competition

Vortex Racing has been producing championship-quality drivetrain components since 1995. The 203B-37 rear sprocket is a direct-fit replacement or performance upgrade, offering reliable power transfer and extended service life for street and track use.