资讯

The head of cycling's governing body said it is wrestling with the idea of reducing the maximum power riders can generate to make road racing safer. A string of accidents, particularly downhill, have ...
The gear ratio for 1st, 2nd, 3rd, 4th and 5th gear of Honda SP 125 is 3.454, 1.933, 1.315, 1.095 and 0.933, respectively. For more details, you may refer to the user manual of your bike.