Vortex 654AZBV4-42 VTX Aluminum Rear Sprocket 42-Tooth

The Vortex 654AZBV4-42 is a 42-tooth aluminum rear sprocket from Vortex Racing's VTX series, engineered for riders who demand lightweight performance without sacrificing durability. Machined from high-grade 7075-T6 aluminum alloy, this sprocket offers a significant weight reduction over stock steel units while maintaining excellent wear resistance under demanding street and track conditions.

Key Features:

• 42-Tooth rear sprocket for tunable final drive gearing
• Constructed from 7075-T6 aerospace-grade aluminum for superior strength-to-weight ratio
• Hard anodized finish (AZ designation) for enhanced surface hardness and corrosion resistance
• CNC-machined to tight tolerances for precise chain engagement and smooth power delivery
• Lightening holes reduce rotational mass for improved throttle response
• Direct OEM bolt-on replacement — no modifications required
• Compatible with standard chain pitches for the BV4 fitment application

Vortex sprockets are a staple in both competitive racing and performance street riding. The VTX aluminum series delivers a noticeable reduction in unsprung weight compared to factory steel sprockets, translating to crisper acceleration and more responsive handling. Sold individually as a rear sprocket only.