The Cervelo Toptube Cable Guide P2/P3/P5 is a frame-specific accessory designed to secure and guide brake and shift cable housing along the top tube on compatible Cervelo P-Series and R-Series models (P2, P3, P5). It helps maintain organized routing that reduces unwanted movement, friction, and wear that can impair control precision or drivetrain response over time.

This cable guide is engineered to align with the top tube’s contour and the frame’s integrated routing provisions, ensuring that housing follows the intended path toward the head tube and down tube. By stabilizing the cable at this high-motion junction, it minimizes play and chafing that can occur during pedaling, cornering, or over rough terrain. Proper cable management contributes to dependable braking and shifting performance and supports long-term component durability.

Constructed from durable materials that resist wear from vibration and environmental exposure, the guide complements the frame’s structural and aesthetic characteristics without adding bulk or interfering with adjacent components. Installation follows the frame’s designated mounting points and requires correct orientation and hardware to ensure secure fitment. Proper routing practices help preserve smooth cable operation and reliable performance through extended use.