Re: Bike Bobber
With the wide side of the arm milled flat I ground the inside and outside of the arc on a belt sander. When ever this type of fabrication is done there is bound to be some pits and pin holes in the metal. Pits are easy to fill and blend in, but pin holes are like ice bergs in that most of the hole is under the surface. You can spend a lot of time and resources welding and grinding chasing them around, or you can simply grind them out with a carbide bit and a dremel, fill them in once and be done with it. If you plan on painting than pits and pin holes can be filled in with body filler and or primer. However I'm having the brake arm powder coated so the metal finishing is critical to ensure a smooth uniformed powder coat surface.