Shimano tiagra 4703 triple 10 speed cranksettaking many features from pro level equipment this 2 piece cap free design tiagra chainset offers unbeatable performance please note bottom bracket is not included features2 piece cap free design is quick and easy to install whilst being lighter and stiffer than a traditional crankbottom bracket assemblysg x chainrings feature strategically placed chain pick up pins and tooth profiles to ensure fast and positive shiftingdesigned to work with hollow