How do you get a stuck Cup out of a headset?

Long screwdriver and hammer and tap it out, tapping around the cups from teh inside. Place rag around headset cups, place spanner over top of the outside of the cups. Hit with hammer. Or some other method depending what you have to hand.Click to see full answer. Similarly, what is semi integrated headset? Semi-integrated headset A semi-integrated (or internal, Zero Stack or ZS) headset works in a very similar way to a threadless headset but the cups that hold the bearings are pressed inside the frame with just a lip extending out of the top and the bottom of the head tube.Subsequently, question is, what is a headset on a bike? The headset is the set of components on a bicycle that provides a rotatable interface between the bicycle fork and the head tube of a bicycle frame. The tube through which the steerer of the fork passes is called the head tube. Hereof, how do you measure headset size? You need to measure it in two places. The outside diameter (OD) of the top section (where the stem clamps around, as in the above pic) and the outside diameter of the very bottom bit where the steerer goes into the fork crown (where the headset crown race sits, as in the pic below).How do you remove a bearing cup?If you replacing the bearing, you can usually ease cup removal by welding a large bead around the inside of the raceway. As the weld cools, it shrinks and removes the cup outer diameter, or OD, making it easier to remove, but not reusable.

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