The 2005 Serotta CSI is a classic steel road bike that exemplifies craftsmanship and timeless performance. Hand-built in the USA, the CSI features a custom-butted steel frame known for its exceptional ride quality, blending comfort with precise handling. Renowned for its smoothness and durability, the frame is paired with Serotta’s proprietary S-bend seat stays and a carbon fork, adding to its ability to absorb road vibrations while maintaining responsiveness. The geometry of the CSI is tailored for endurance and long-distance rides, making it ideal for cyclists who appreciate the balanced, lively feel of a well-engineered steel frame. With a reputation for superior workmanship and a rich cycling heritage, the Serotta CSI remains a cherished model among enthusiasts seeking both performance and a touch of nostalgia.