ahead set 1 1/8" - pressing tool

set of spacers to be used together with M12 thread rod and M12 nuts to press ahead cups into bike frame (head tube) ... one spacer to fit the empty 34mm head tube and centre the M12 rod perfectly, two spacers to centre and align the ahead cups with the head tube perfectly and press it by the screwing the M12 nuts on the rod into the headtube perfectly aligned and evenly.

works like a charm