My catrike speed ( 2 weeks new to me) seems to making an unusual noise. When going around a corner, especially to the right but a little to the left, there is a sound coming from the brake, it sounds like the disc or the pads in the caliper are vibrating like they are loose. I checked the allignment of the pads, the bolts holding the disc on, the caliper and the wheel but all seemed fine. Is this sound normal? or does anyone have any ideas, Id appreciate it.