factory 450R pegs bolt right up and are about an inch wider than the stockers. and yes, tusk heel guards work with them.
Jacob
1999 416ex, Burgard/GTThunder/ITP/Renthal
http://www.myspace.com/jacob101292
"The person who doesn't scatter the morning dew will not comb gray hairs."
-Hunter S. Thompson
"Life should not be a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside in a cloud of smoke, thoroughly used up, totally worn out, and loudly proclaiming "Wow! What a Ride!"
-Hunter S. Thompson