Vortex 803A-55 Aluminum Rear Sprocket 55-Tooth

The Vortex 803A-55 is a 55-tooth aluminum rear sprocket engineered for motorcycle applications demanding lightweight performance and precision. Part of Vortex Racing's industry-respected rear sprocket lineup, this sprocket is 100% CNC-machined in the USA from a specially formulated aerospace-grade aluminum alloy developed to Vortex's own specifications, delivering an excellent strength-to-weight ratio over stock steel sprockets.

Vortex's patented tooth geometry extends sprocket life by distributing chain load more evenly across each tooth, reducing wear on both the sprocket and chain. A silver anodized finish provides a clean appearance while protecting the aluminum surface from corrosion and the elements.

Key Features:

• 55-tooth rear sprocket — ideal for performance tuning, stunt riding, and low-end torque applications
• 100% CNC manufactured in the USA for tight tolerances and consistent quality
• Aerospace-grade aluminum alloy per Vortex's proprietary specifications
• Silver anodized finish for corrosion resistance and lasting good looks
• Patented tooth design increases sprocket longevity and reduces chain wear
• Significant weight savings compared to OEM steel sprockets

The Vortex 803A-55 rear sprocket is a bolt-on upgrade for riders looking to improve acceleration and low-end power delivery. Whether used on the street or track, Vortex sprockets are trusted by racers and enthusiasts worldwide for their precision craftsmanship and reliable performance.