Cook Bros Racing Ghost Serie COG Size:17 extending your seat post before

extending your seat post before and after your big race

and airflow

*Clarino-am

4mm Seatpost clamp

Cook Bros Racing Ghost Serie COG Size:17 extending your seat post beforeCook Bros Racing Rear Cog Upgrade your ride with the Cook Bros Racing Rear Cog, featuring the renowned Onyx UltraSS Driver pattern for 20mm top of the line size axles. Precision CNC machined from durable Black Oxide Steel alloy, this cog is fully compatible with all Cook Bros Racing Ghost Hub series, ensuring superior durability and reliability. Key Features: Designed in California CNC machined from Black Oxide Steel alloy Ultra sharp 3 32" pattern