Vortex 435CZGV4-42 Aluminum Rear Sprocket 42-Tooth

The Vortex 435CZGV4-42 is a 42-tooth aluminum rear sprocket from Vortex's CZ series, engineered for performance-oriented street and track motorcycle applications. Vortex sprockets are manufactured to precise tolerances and are a popular upgrade over stock steel sprockets for riders looking to reduce unsprung rotational mass.

Machined from high-grade 6061 aluminum, this sprocket delivers an excellent strength-to-weight ratio while shedding significant weight compared to OEM steel units. The hard-anodized finish provides corrosion resistance and durability, helping the sprocket maintain its appearance and structural integrity through extended use.

Key Features:

• 42-tooth rear sprocket configuration
• Lightweight 6061 aluminum construction for reduced rotational mass
• Hard-anodized finish for corrosion resistance and long service life
• Precision CNC-machined for consistent tooth geometry and smooth chain engagement
• Part of Vortex's CZ series, designed for direct OEM replacement fitment
• Compatible with standard motorcycle drive chain pitch — verify chain compatibility before installation

The Vortex CZ series rear sprocket is an ideal upgrade for sport bike and track riders seeking improved acceleration response through gearing adjustments. A higher tooth count (compared to stock) lowers overall gearing for improved low-end acceleration, while a lower tooth count raises gearing for higher top speed. Always replace the drive chain when installing a new sprocket for optimal performance and longevity.