This is the tool I use http://www.servicehonda.com/parts.php?partnumber=07702-0020001&getpart=1&getprice=Submit It has a thumbwheel like and adjustable wrench, so it will fit any size ring nut. Very useful, albeit a bit pricey (but just once). Bill Denton Yardley, PA wkdenton at verizon.net Lazarus Cycleworks, LLC Breathing New Life into Old Bikes