Adapter SleeveLocknut Code Included : KM 4LockingDevice Code Included : MB 4Bore diameter (d): 17 mmOutside diameter (D): Typically around 30 mm (but it’s good to check specific model variations)Width (B): 28 mmThread designation: M20x1 (for the corresponding lock nut)Length (L): Commonly about 50–70 mm, depending on the specific sleeve model.