Shimano Tiagra FC-4700 Crankset - 10-Speed 110 Asymmetric BCD Hollowtech II Spindle Interface, Gray The Shimano Tiagra FC-4700 2-piece crankset balances weight and efficiency without sacrificing stiffness. Features Optimal balance between stiffness and light weight provides outstanding power transfer Aluminum construction with anodized finish provides strength weight savings and keeps the crankset looking great Gear shape optimized for HG-X chains Compatible with HG-X 10-speed chain43. 5mm Chainline150mm Q-factor | Shimano | Tiagra Fc-4700 Crankset - 10-Speed 110 Asymmetric Bcd Hollowtech Ii Spindle Interface | Gray | 172. 5Mm 10-Speed 48/34T | Aluminum