Acera RD-M3020-SGS Rear Derailleur - 7/8 Speed, Long Cage, Black drop bar-right ADVENT X allows you to

ADVENT X allows you to find the right gear even in challenging conditions

R10 front derailleurs work with 10-speed Shimano-compatible road shifters

and square head) of 89 mm length

Weather-friendly PU Leather for durability and comfort in

Acera RD-M3020-SGS Rear Derailleur - 7/8 Speed, Long Cage, Black drop bar-right ADVENT X allows you toThe Shimano Acera RD M3020 rear derailleur features Double Servo technology to provide smooth, precise shifting and helps you ride challenging terrain with fewer interruptions. Double Servo mechanism enables the rear derailleur to move in an optimum path Versatile performance and wide compatibility SGS Long cage