2021 SHIMANO Acera RD M390 9 speed Rear Derailleurs for MTB Bike Accessory Mountain Bicycle Parts for 3x9S 27S Speed Bicycle Accessories | Lazada PH
Krasnodar, Russia - February 12, 2021: The new Shimano Acera 3-speed bicycle front derailleur isolated on a white background. In the box Stock Photo - Alamy
Mountain bike groupsets: everything you need to know - BikeRadar