Re: Bike Bobber
Attaching the Cup to the Arm
First I eyeballed and cut two slit's on opposite sides of the arm and bent it to create a crookneck to go around the rear sprocket. I than tacked the cup and arm together and made a test fit... so fare so good. Next I made two crude gusset's to help support the arm on the cup and welded them in place on both top and bottom.