2x7 Speed R7 Compatible With Shimano Road Series
2x8 Speed REFLEX Compatible With Shimano Road Series
2x9 Speed IGNITE Compatible With Shimano Road Series
2x10 Speed QVANTVM Compatible With Tiagra 4700
NOTE:Please be sure to pay attention to the model you purchased. If you have any questions, please contact me and I will provide you with professional advice.