Vortex 201EZR-55 55-Tooth Aluminum Rear Sprocket

The Vortex 201EZR-55 is a high-performance 55-tooth aluminum rear sprocket from Vortex Racing's popular EZR series. Engineered for motorcycle and sportbike applications, this sprocket delivers the precise gear ratio tuning that competitive riders and street enthusiasts demand.

Vortex sprockets are CNC-machined from 7075-T6 hard anodized aluminum, providing an exceptional strength-to-weight ratio over OEM steel sprockets. The hard anodize coating resists corrosion and wear, extending service life even under aggressive riding conditions.

Key Features:

• 55-tooth rear sprocket for increased acceleration and low-end torque
• CNC-machined from lightweight 7075-T6 aluminum
• Hard anodized finish for enhanced durability and corrosion resistance
• EZR series bolt pattern — verify fitment using Vortex's application guide
• Precision-cut teeth for smooth, quiet chain engagement
• Significant weight savings compared to OEM steel sprockets
• Available in multiple colors (finish may vary)

Upgrading to a higher tooth-count rear sprocket like the 55T delivers stronger acceleration and improved low-end pull, making it a popular modification for track days, supermoto, and spirited street riding. Always replace the drive chain when installing a new sprocket to ensure proper wear and engagement.