Vortex 427ZOV4-40 VTX Aluminum Rear Sprocket Pitch Sprockets - 40T 428

The Vortex 427ZOV4-40 is a VTX series aluminum rear sprocket engineered for performance-oriented riders who demand lightweight drivetrain components without sacrificing durability. Featuring a 40-tooth count and 428 chain pitch compatibility, this sprocket is precision CNC-machined from high-grade aluminum alloy for an optimal strength-to-weight ratio.

Key Features:

• 40 Teeth — optimized gearing for acceleration or top-speed tuning depending on front sprocket pairing
• 428 Chain Pitch — fits standard 428-pitch drive chains
• CNC-Machined Aluminum Construction — significantly lighter than steel alternatives, reducing unsprung and rotating mass
• Hard Anodized Finish — resists corrosion and wear for extended service life
• Precision Laser-Cut Tooth Profile — ensures smooth chain engagement and reduced drivetrain noise
• Vortex VTX Series Design — lightening holes reduce weight while maintaining structural integrity
• Direct OEM-Style Bolt Pattern — ZOV4 carrier pattern for straightforward installation

The Vortex VTX aluminum rear sprocket is a popular upgrade for sport bike and motocross riders looking to shed grams from their drivetrain. Vortex Racing is a trusted name in competitive motorsports, supplying sprockets to professional race teams and street riders alike.