Re: Bike Bobber
So the brake flange cup is finished and the brake arm is ready to shape. I'm using the slit and weld method to bend the brake arm into a nice smooth 3 1/4 in. arc. Why 3 1/4 ins.? Because I'm installing a 40t rear sprocket that is... 6 1/2 ins. in diameter. It is little things like this that can make the components of your bike mesh together.
To start I made a simple template out of poster board to follow when bending the arm. As you can see unless you do this everyday it can be difficult to gauge the width and frequency of the saw cuts. So I've made some more work for myself, but it will all work out in the end. After tacking it together on one side I welded the inside diameter first. This will help stabilize the piece when I finish weld the side I tacked.