1.Headtube: 1-1/8, 1-1/2 taped steerer tube design for stiffness and precise handling
2.Seat tube: 27.2 seat tube is design for more comfortable riding position, it can help expend less energy on every climb and descent.
3.General threaded bottom bracket: BSA is for commonly used, it‘s more cost-effective
4.Seat stay: Slender seat stay is design for more comfortable riding position
5.Chain stay: Square tube shape design to enhance the rigidty.