theheadbadge

Most recent activity

• Brake nut/head set problem

  in Mechanics & Fixin' • 12 years, 6 months

  

  Ah right - I've been placing a washer there, but it must be too thin to make a difference.

  Just ensure that washer has the proper curve to conform to your frame on one side, and is flat on the other. A curved washer from the hardware store won't cut it.

  -Kurt

• 80's Coming Back - Raleigh Volant

  in Mechanics & Fixin' • 12 years, 6 months

  

  It seems as if they already tried to unscrew it by creating flats in the end, so I take it they were not successful in attempting that method.

  Nevertheless, the drilling process has already created a good conical surface to center a drill bit, which may give you the opportunity to drill a portion of the rest out - without damage to the threads. Use a drill bit about 2mm smaller than the remaining threaded end of the bolt - chances are the rotational torque will break the bolt loose from its threads before you get 3/4 of the way through.

  -Kurt

• Brake nut/head set problem

  in Mechanics & Fixin' • 12 years, 6 months

  

  You need to add a spacer between the fork crown and front brake (and be sure to get one that conforms to the fork, i.e.: a washer with a curved rear surface for a curved fork crown). Look between the front fork and the back of the brake in this photo for an example:

  

  -Kurt

• The Koga / Koga Miyata thread

  in Bikes & Bits • 12 years, 6 months

  

  An early 1981 Team Miyata w/Dura-Ace 7200:

  

  -Kurt