Vortex 202ZR-37 420 Aluminum Rear Sprocket 37-Tooth Red

The Vortex 202ZR-37 is a 37-tooth, 420-pitch aluminum rear sprocket finished in a striking red anodized coating. Engineered as a high-performance, lightweight replacement for the heavy OEM steel sprocket, this sprocket is precision CNC-machined for consistent concentricity, proper chain alignment, and reduced drivetrain wear.

Key Features:

• 420 Pitch: Designed for standard 420-pitch chains
• 37 Teeth: Tooth count for optimized gearing and acceleration tuning
• 7075-T6 Aluminum Construction: Premium aerospace-grade aluminum delivers maximum strength-to-weight ratio
• Red Anodized Finish: Hard anodized coating provides corrosion resistance and a bold custom look
• CNC-Machined: Tight manufacturing tolerances ensure a perfectly concentric sprocket for smooth, vibration-free operation
• Patented Tooth Design: Vortex's unique tooth profile minimizes chain drag, reduces friction, and extends both chain and sprocket life
• Mud Grooves: Integrated mud-clearing grooves help keep the drivetrain clean in off-road conditions
• Reduced Rotating Mass: Lighter rotational weight improves throttle response and overall acceleration compared to stock steel sprockets

The Vortex 202ZR-37 is a direct bolt-on upgrade that delivers measurable performance gains for mini bike and pit bike riders seeking improved acceleration and a custom appearance.