RD-M3020-8 Rear Derailleur Acera 7/8-Speed Black garmin 8" TFT display's size and

8" TFT display's size and quality provides unmatched viewing and browsing experience in all lighting conditions

and charging case is not rated waterproof

More secure clamping

Configure select shifting systems to control your Edge device and view battery life

Extremely multifunctional and practicable 180cm length

RD-M3020-8 Rear Derailleur Acera 7/8-Speed Black garmin 8" TFT display's size andSHIMANO ACERA Rear Derailleur RD M3020 8 8 7 speed Item Number ERDM30208SGSL SKU Description Double Servo construction for smooth and precise shifting Versatile performance and wide compatibility Max. low sprocket: 40T Total capacity: 45T