Easy operation with great performance: simply twist the grip shift at any moment, and you have changed the gear without delay.
Safe for anyone: No more chain- drops, no more clothes jacked in.
• Shaft Drive System, Integrated BB
• Gear ratio:1.85/2.07/2.38
• Finish:Silver and Black
Country of Origin：Taiwan
Competitive Advantages：Well and High Quality Control ,New Product ,Competitive Prices