I recently purchased a pair of risers from twisted throttle
http://www.twistedthrottle.com/trade/productview/332/82/I lowered my 77 550 2" through the trees in the front & 2" shocks in the rear. Doing this rendered my old bars useless, intil I purchased these risers. I flipped my bars and they seem to work out great and it was much cheaper than clip ons.