My rear brake was squealing on Friday's ride home. So today in addition to installing a wireless cadence sensor, I took a look at the rear wheel. It was quite out of true, and I quickly noticed a broken spoke (head broke off at the hub). This is a wheel the LBS lent to me in July while waiting for a replacement 36 spoke Deore LX rear hub to get back in stock for a warranty replacement. I still have the spokes from the old wheel so I had plenty of spares.