I purchased these:
http://cgi.ebay.com/ebaymotors/SUPE...3355813QQptZMotorcyclesQ5fPartsQ5fAccessories
since they only have a single mounting bolt I attached them to the rear engine hanger brackets( one on each bracket). There is a hole already drilled out in the brackets in which they fill well. I added a lock washer so they wouldn't wiggle loose. I've put a little over 100 miles on with them so far and no issues.
http://cgi.ebay.com/ebaymotors/SUPE...3355813QQptZMotorcyclesQ5fPartsQ5fAccessories
since they only have a single mounting bolt I attached them to the rear engine hanger brackets( one on each bracket). There is a hole already drilled out in the brackets in which they fill well. I added a lock washer so they wouldn't wiggle loose. I've put a little over 100 miles on with them so far and no issues.