[markdt]

These bars do this because they are drilled . Before drilling in any structural member always weld on another piece of steeel first( even a washer will do) then drill. I have seen motocross and street bike frames and bars thatcracked because they were drilled into and not re-enforced . On bars everytime you turn them at a standstill itputs a tremendous amount of pressure on the riser bolts and bars . Before you buy any bars check to see if they have been re-enforced or not, especialy Apes .When I did mine I welded on a 3/4 x1 inch 1/8th plate and then drilled through it to make a rectangular opening for my wires.You can'tsee it because it is underneath the bars and the speedo hides it .Better yet buy bars that have hollow riser bolts and run the wires there...Mark... ...