There is standardbolt hole connecting with the valve or bracket. The output axis in the middle is a standard internal octagon.
壳体上有标准的螺孔与阀门或支架相连。中间输出轴为一个标准的内八角。
2
As the system is designed to fit around a standard four-bolt mountain bike crankset and standard BB mounting, the advantages of the new system can be obtained on almost any modern DH bike or frame.