CYCLUS TOOLS Impactor | for Ahead star-nut - 1", 1 1/8", 1.5"
This CYCLUS TOOLS impact tool guarantees precise and straight positioning of the headeset star-nut (aka star fangled nut) into the fork steerer tube with a previously defined insertion depth for the Aheadset 1" and 1 1/8" types.
Screw the required socket (1", 1 1/8", 1.5") hand-tight into the Cyclus impactor tool.
Next, screw the star-nut to be inserted, as far as it will go onto the tool's central threaded pin. This is easier using the side access hole in the tool. Place the tool onto the steerer tube and tap it straight down with a hammer. You will hear the hammer impact noise change when the star nut is seated in as far as it will go. Finally remove the impactor tool from the steerer tube by unscrewing it anticlockwise.
Note: Only to be used for steel and aluminium fork steerer tubes. Carbon steerer tubes require a screw in type insert.