Rear sprocket Sept 21, 2013 13:28:45 GMT -5 Quote Select PostDeselect PostLink to PostMemberGive GiftBack to Top Post by youngblood35 on Sept 21, 2013 13:28:45 GMT -5 What is the bolt pattern in terms of inches for the 520 rear sprocket on the Xcel modifieds? Is it 6.438 inch or 5.25 inch. Thanks