9point 8 SLACK-R IS41 UPPER CUP 42-46MM Head Tube Angle Adapter IS 41 Slacker
9point 8 SLACK-R IS41 UPPER CUP 42-46MM Head Tube Angle Adapter IS 41 Slacker. I changed bikes so I had to buy a new adapter. Nothing wrong with it. This is one part of the whole kit. You need to source the other two parts.