Vortex 625ZR-52 Steel Rear Sprocket Pitch Sprockets - 52-Tooth 625

The Vortex 625ZR-52 is a 52-tooth steel rear sprocket designed for motorcycles running a 625 pitch chain. Built to Vortex Racing's exacting standards, this sprocket is precision-manufactured and induction-hardened to tight tolerances, producing a part that is concentric, durable, and quieter in operation than competing designs.

Vortex's induction-hardening process selectively heats the steel using a controlled electrical current, creating a surface that resists wear while maintaining core toughness — a key advantage over conventional heat-treated sprockets. A zinc coating provides corrosion resistance and a clean, polished appearance.

Key Features:

• 52-Tooth rear sprocket for tuning acceleration and overall gear ratio
• 625 chain pitch compatibility
• Precision CNC-machined steel construction
• Induction-hardened teeth for extended wear life
• Zinc-coated finish for corrosion resistance
• Vortex patented tooth profile design for increased sprocket longevity
• Manufactured in the USA

A 52-tooth rear sprocket is a popular choice for riders seeking improved low-end torque and quicker acceleration compared to lower tooth-count options. Pair with a matching 625-pitch front sprocket and chain for optimal drivetrain performance.