Vortex 839ZK-37 Aluminum Rear Sprocket 37-Tooth

The Vortex 839ZK-37 is a lightweight aluminum racing rear sprocket designed for high-performance motorcycle applications. This 37-tooth sprocket features Vortex's patented tooth profile design that sets it apart from conventional sprockets, delivering extended service life and reliable power transfer.

Key Features:

• 37-tooth configuration for optimized gearing
• 100% CNC machined in the USA from specially formulated aluminum alloy
• Vortex patented tooth design increases sprocket longevity
• Lightweight construction reduces unsprung weight for improved handling
• Anodized finish prevents corrosion and maintains appearance
• Precision machining ensures proper chain alignment and wear

Vortex sprockets are manufactured to exacting specifications using advanced CNC machining processes. The unique tooth profile distributes load more evenly across the chain, reducing wear on both the sprocket and chain while maintaining smooth power delivery throughout the rev range.