A common issue of the classic press fit bottom brackets is a squeaking and creaking sound because of a bad bearing alignment. Press fit bottom brackets exist of three pieces which are independently pressed into the shell using a press-in tool. It often occurs that the left and right bearing are not 100% in line. This causes pressure on the bearings, wearing them out easily.A solution to this problem is the Elvedes twist fit bottom bracket. This improved version of a press fit bottom bracket exists of two easily installed interlocking cups to create one rigid bracket in which the bearings are perfectly aligned. This makes sure the spindle can run without any sideways pressure, lifting both friction and creaking sounds. The Elvedes CNC twist fit bottom brackets come in all sizes and can be used instead of regular press fit bottom brackets to bring your cycling experience to the next level. Once installed, the bearings can easily be replaced for maintenance while the bottom bracket stays in place. This saves a lot of time and keeps the costs low over time.To assemble the Elvedes Twist Fit you will need the Elvedes Bottom Bracket Wrench (item no. 2018086 or the Elvedes Twist Fit Tool Kit (item no. 2018087)THREAD FIT: Tools required: 2018086 Bottom bracket wrench:- Convertible to GXP with GXP reducer kit (2018080)- Convertible to FSA with FSA bearing caps (page 49)Specificcations:- Low Maintenance Costs: Only The Bearings Can Be Replaced For Service Maintenance, While The Bracket Stays In Place.- Perfectly In Line: The Threaded Interlocking Cups Allow The Spindle To Run Freely Without Squeaking And Creaking.- Easy Installation: Elvedes BB wrench required (item no. 2018086)