Stem Preparation: Difference between revisions
| Line 1: | Line 1: | ||
===Why=== | ===Why=== | ||
Threadless headset systems require a nice sqare face to push against for proper function. Rarely is a cast or fabricated stem faced with any usable precision. You must do this yourself. Machined stems rarely require this treatement. | Threadless headset systems require a nice sqare face to push against for proper function. This is important for well engineered systems that use the Dia-Compe patent, but absolutely critical if using a poorly designed Chris King headset. | ||
Rarely is a cast or fabricated stem faced with any usable precision. The price point just doesn't justify it. You must do this yourself. Machined stems rarely require this treatement. | |||
===How=== | ===How=== | ||
Revision as of 02:10, 5 May 2007
Why
Threadless headset systems require a nice sqare face to push against for proper function. This is important for well engineered systems that use the Dia-Compe patent, but absolutely critical if using a poorly designed Chris King headset.
Rarely is a cast or fabricated stem faced with any usable precision. The price point just doesn't justify it. You must do this yourself. Machined stems rarely require this treatement.
How
A simple madrel is made to fit a 1" collet and the 1.125" stem. I prefre to do all work with a collet if I can.
Very carefully spin the stem on the lathe. Take as little metal off as needed to get a nice face.
Always bag and lable specially made tools. Years later the tool will be clean, in good shape, and clearly marked.
