Vortex 151-39 Silver 39-Tooth Aluminum Rear Sprocket

The Vortex 151-39 is a 39-tooth silver aluminum rear sprocket engineered for motorcycle and powersports applications. Built by Vortex Racing — a USA-based manufacturer with a heritage in professional motorsport since 1995 — this sprocket delivers race-proven performance in a lightweight, durable package.

Vortex's proprietary tooth profile and manufacturing process set it apart from generic replacements, providing optimized chain engagement and reduced wear over the life of the sprocket. The aircraft-grade aluminum construction keeps unsprung and rotational weight to a minimum, contributing to sharper throttle response and improved handling feel.

Key Features:

• 39-tooth rear sprocket — direct replacement or performance gearing option
• Silver anodized aluminum construction — lightweight and corrosion resistant
• Vortex patented tooth design — engineered to increase sprocket longevity and reduce chain wear
• Race-tested manufacturing tolerances — built to the same standards as Vortex components used by professional race teams
• Part of the Vortex 151-series rear sprocket family

The Vortex 151-39 is an ideal choice for riders seeking a high-quality OEM-style replacement or a gearing adjustment for improved low-end torque or top-end performance. Manufactured by Vortex Racing in the USA.