Gear knob/ shifter thread adapter M12x1.25 for Logitech G27/G29/G920/G923
£6.99
M12x1.25 Thread adapter to fit most universal gear/ shift knob to Logitech Shifter
Kit comes with the adapter and longer screw.
Simply remove the cap on the standard shifter, uncrew and remove then fit the adapter using the longer screw provided.
3d printed, great quality.