Hey everyone just throwing this out there but picked up a (Up Above) Maroon and gold pinstriped and had a question about the rear brake calipers... When i removed them couldnt spin them down so had to go to a shop to get the piston removed. But when i look at the piston from rebuid kit it has no screwed theading mechanism. If possible does some one know of a way to safely extract this old piece out of the old piston to put in new one?? Thank you so much for your time!!!