The Specialized CBG MY16 cable guide is a bolt-on bracket designed to secure shifter and brake housing at the bottom‑bracket level on 2016–2018 Allez Sprint and 2021+ Roll models. It supports 4–5 mm housings, installs easily using a single bolt, and guides cables cleanly to prevent wear or buzzing—ensuring smooth, quiet operation with internal routing.
Fits: 2016–2018 Allez Sprint (including Sprint X1), and 2021+ Roll frames
Housing compatibility: 4 mm and 5 mm shifter or brake housings
Attachment: bolt-on design using existing BB bolt hole
Material: hardened composite or reinforced plastic
Function: positions and stabilizes housing below BB shell, reducing cable wear and noise