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

The Vortex 525ZK-39 is a high-performance steel rear sprocket designed for motorcycles using 525 pitch chain, featuring 39 teeth and a durable black finish. Each sprocket is laser cut from carbon steel and finished in an extremely durable satin black coating to resist corrosion.

Key Features:

• Made of the highest quality steel with case hardening for superior strength and longevity
• Electroplated satin black finish for corrosion resistance with hardened teeth for increased durability
• Weight-reducing lightening holes cut into the inner portion of the sprocket to reduce rotating mass
• Manufactured to the tightest tolerances with the best quality materials in the industry, tested on the track with direct feedback from top professional race teams worldwide
• Laser-cut carbon steel provides extended chainwheel life versus aluminum sprockets

Based in the USA, Vortex has been manufacturing top quality racing components since 1995. Owned and operated by motorcycle racers, they focus on absolute quality. This steel sprocket offers the perfect balance of weight, strength, and durability for riders who demand maximum performance and longevity from their drivetrain components.