The Cannondale SL Steer Expander Plug is a lightweight, high-performance compression assembly designed for 1 1/8" carbon fiber forks. This genuine Cannondale component provides the necessary internal reinforcement and preload tension required for a secure and stable headset setup.

Precision Engineering: This expander is built to protect sensitive carbon steerer tubes from the external pressure of the stem while ensuring a reliable, creak-free interface.