Vortex 154ZK-49 CAT5 Aluminum Rear Sprocket Black 49-Tooth 520 Pitch

The Vortex 154ZK-49 is a CAT5 aluminum rear sprocket featuring a 49-tooth count, 520 pitch, and a black anodized finish with contrasting silver machine-cut accents. Designed and manufactured in the USA, this is the sprocket of choice for riders seeking a lightweight performance upgrade over a heavy OEM steel unit.

Key Features:

• Lightweight CAT5 aluminum construction — reduces rotating mass for improved acceleration and throttle response
• 100% CNC manufactured in the U.S.A. to tight tolerances
• Specially formulated alloy per Vortex specifications for maximum strength and durability
• Saber tooth grooves — Vortex patented tooth design increases sprocket longevity and chain engagement
• Black anodized finish with bright silver machined highlights for a premium appearance
• 520 pitch — compatible with standard 520 chain setups
• 49-tooth rear sprocket — increases low-end torque and acceleration compared to lower tooth-count options

The Vortex CAT5 series is a trusted name in motorcycle racing and street performance. The aluminum construction is significantly lighter than OEM steel sprockets, which reduces rotating mass and allows for more responsive power delivery. The patented saber tooth groove design is engineered to extend the service life of both the sprocket and chain.