09-28-2011, 03:34 PM
So I recently purchased a new derailleur hanger after issues with my previous hanger. After watching the video here on the site, I purchased the derailleur hanger alignment tool in order to proper align the hanger. I carefully attempted several times to tread the tool into the hangar threads but every time the connection was awkward and the hangar threads began to strip. Not wanting to ruin the threads in the hangar, I stopped (the derailleur still mounts properly into the hangar threads).
In the video (http://bikeride.com/derailleur-hanger-alignment/) he talks about how the hanger threads may not thread smoothly and the threads may be damaged and need to be chased by a tap which will be covered in a future tutorial (between 1:14 - 1:29). After searching the site I didn't see this tutorial. Did i somehow miss it?
If the tutorial has not yet been done - how do I go about chasing the treads with a tap?
EDIT: looks like I will need to buy this http://www.parktool.com/product/frame-tap-tap-10 (10mm x 1mm thread) and some cutting fluid. Does anyone have any experience having done this?
In the video (http://bikeride.com/derailleur-hanger-alignment/) he talks about how the hanger threads may not thread smoothly and the threads may be damaged and need to be chased by a tap which will be covered in a future tutorial (between 1:14 - 1:29). After searching the site I didn't see this tutorial. Did i somehow miss it?
If the tutorial has not yet been done - how do I go about chasing the treads with a tap?
EDIT: looks like I will need to buy this http://www.parktool.com/product/frame-tap-tap-10 (10mm x 1mm thread) and some cutting fluid. Does anyone have any experience having done this?