Vortex 840AV4-45 VTX Aluminum Rear Sprocket 45-Tooth

The Vortex 840AV4-45 is a high-performance aluminum rear sprocket designed for riders who demand precision, reduced weight, and durable drivetrain performance. Part of Vortex's VTX series, this sprocket is CNC-machined from lightweight aluminum alloy, delivering an excellent balance of strength and weight savings over stock steel sprockets.

Key Features:

• 45-Tooth Rear Sprocket — optimized tooth count for acceleration and gearing adjustments
• 840 Chain Pitch — compatible with 840-series chains
• CNC-Machined Aluminum Construction — precision machined for consistent fitment and reduced rotating mass
• VTX Series Design — Vortex's trusted performance sprocket lineup for powersports applications
• Hard-Anodized Finish — resists corrosion and wear for extended service life
• Lightweight alternative to OEM steel sprockets

Vortex is a trusted name in the powersports industry, manufacturing sprockets and drivetrain components to tight tolerances for both street and track use. The 840AV4-45 rear sprocket is a direct-fit performance upgrade that pairs seamlessly with compatible Vortex or OEM front sprockets and 840-pitch chains.