Adapter shock absorber SIP Performance PX/T5, front,

Hi to everyone reading this, i have just bought the SIP shock absorber adapter for my 2001 PX125 ... does anyone know how the bracket fits? the outside diameter of the bracket falls inside the spring, the bottom thread doesn't even match the thread on the PX shocker. I'm not sure this part is for a PX/T5 ... if anyone has bought this part and can give some advice i'd be very grateful. Regards Graham