Drum Workshop Bass Drum Spur Pair Chrome Factory Replacement Part. These are standard replacement spurs for Collector’s Series, Performance Series bass drums and others. The top and bottom mounting holes are on 2 7/16 in. centers.   The front and back mounting holes are on 1 11/16 in. centers. Check your mounting hole dimensions against those above to make sure they’re a proper fit. This complete spur pair includes gaskets and all mounting screws.   Dale’s Drum Shop is an authorized DW dealer. Contact us anytime with your questions about the gear we offer.  A Drummer will respond to you promptly.