Shimano RD Acera M360-SGS 7/8 Speed (long) The Shimano Acera RD-M360 rear derailleur is suitable for 7 and 8-speed drivetrains. It has been designed according to the Wide-Link concept with further apart bearings, which increases rigidity and counteracts torsion under load. As a top-normal rear derailleur, the RD-M360 supports fast down shifting of multiple gears in the Shimano SIS indexing system. Specifications: Application: Cross Country, City Gearing: 7-speed, 8-speed Mount: standard Capacity: 43 teeth