Öhlins NIX Technology External Compression and rebound adjustment External preload adjustment 1" lowering kit included Pull up tool and Stopper Plate included 22 mm piston diameter Öhlins setting bank - Harley-Davidson Softail Fat Boy 114 FLFBS (2023, 2019, 2018, 2020, 2022, 2021); Harley-Davidson Softail Fat Boy FLFB (2018, 2019)