Vortex 920ZR-42 VTX Aluminum Rear Sprocket Chain Sprockets - 42-Tooth 520

The Vortex 920ZR-42 VTX Aluminum Rear Sprocket is a high-performance replacement rear sprocket engineered for sport bikes and performance motorcycles. Manufactured from lightweight 7075-T6 billet aluminum, this sprocket delivers an excellent strength-to-weight ratio over OEM steel sprockets, helping reduce unsprung rotational mass for improved throttle response and acceleration.

Key Features:

• 42-Tooth rear sprocket for tunable gearing options
• Machined from 7075-T6 billet aluminum for superior strength and reduced weight
• Compatible with 520-pitch chain (ZR series)
• Hard anodized finish for enhanced corrosion resistance and long service life
• CNC precision machined for consistent tooth geometry and smooth chain engagement
• Direct OEM-style bolt pattern for straightforward installation
• Available in multiple colors to complement your motorcycle's aesthetics

Vortex Racing is a trusted name in the powersports industry, supplying sprockets and drive components to racers and enthusiasts worldwide. The VTX series rear sprocket is designed as a direct replacement with performance-focused materials, making it an ideal upgrade for track day riders and street performance applications alike.