EASY TO OPERATE: Quick installation and removal, specifications include 3x7speed, 3x8speed, 3x9speed.
LEFT AND RIGHT HANDLE: Dial 3 speed with your left hand, dial 7/8/9 speed with your right hand.
FOR SHIMANO: Its quality is stable, perfectly compatible with for Shimano speed control system.
HIGH COST PERFORMANCE: Cost performance is quite outstanding, it is a good choice for car friends who pursue high cost performance.
Made of firm metal, lightweight and integrated design, easy to control.