This frameset features a Columbus Thron steel frame and Futura carbon fork. Suited to group rides and crit-races, this frameset is strong, agile and lightweight while providing the flexible comfort of steel. Plus, it features Flat Mount disc brake mounts, a BSA threaded bottom bracket shell and max tyre clearance of 700x28c. Columbus Thron Steel Frame and Future Disc Carbon Fork The advanced engineering of the different steel tube thicknesses for different parts of the frame allows for perfect weight distribution that only this material can produce. It enjoys minimal toe overlap and a higher bottom bracket position. Also, thanks to its fixed-gear criterium racing heritage, the Vigorelli is for riders looking for a fast and positive ride, but with the everyday comfort of a steel frame and the added benefit of disc brakes and up to 700x28c tyres.