unless you specify stainless steel spokes with your order, I suspect they fitted carbon steel spokes to your wheel. If you still have the broken spokes, it's easy to see the difference in colour. Carbon steel spokes are plated to look more like aluminum. I would not have thought BH would fit c*** spokes to their bikes.That's possible, Trex. Another possibility is that the wire from which the spokes were made was the wrong grade. Several manufacturers have had batches of bikes with failing spokes. I myself have had one wheel from BMSBattery where the spokes kept breaking even though I kept it true and properly tensioned. The spokes and rim were the same as all the others I've had that didn't break even when not properly tensioned. I suspect that the Chinese spoke-makers don't have adequate quality controls to guarantee the properties of the wire they receive, and that sometimes it's too hard, causing premature fatigue failures.