Vortex 525-39 Steel Rear Sprocket 525 Pitch 39 Tooth Black

The Vortex 525-39 is a heavy-duty steel rear sprocket designed for high-performance motorcycle applications. Built to exacting standards by Vortex Racing — a U.S.-based manufacturer with decades of motorsport heritage — this sprocket delivers the durability and precision demanded by both track and street riders.

Key Features:

• 525 pitch, 39-tooth rear sprocket for precise drivetrain gearing
• Laser-cut from carbon steel for extended chainwheel life compared to aluminum alternatives
• Electroplated satin black finish provides excellent corrosion resistance
• Hardened teeth for increased durability under demanding riding conditions
• Lightening holes reduce rotating mass without compromising structural integrity
• Manufactured to the tightest tolerances for consistent concentricity and smooth power transfer
• 100% race-proven — tested on the track with feedback from professional race teams worldwide

The Vortex 525-39 steel sprocket is the ideal choice when maximum longevity and reliability are the priority, offering a longer service life than aluminum sprockets while maintaining the performance standards expected from a race-bred component. Compatible with 525-pitch drive chains.