...and it has only ~1000 miles on it. I've tightened it a few times (both sides). Should I just replace it? It's a Shimano, square taper 68x11?, on a Bianchi Bergamo (hybrid). The drive (right) side seems to be coming loose most often, which threads in reverse (lefty tighty). Could there just be too much friction within it, putting torque on the drive side threads as I pedal? Thanks in advance!