Heart Transplant March 2, 2015 Instagram Feed by BRAD WOOD Mockup of the 2005 WR450F engine and swing arm in the 1972 Cb500. Much of the frame will be cut out and replaced to mount everything properly. bikebuild buildyourbike caferacer caferacersofinstagram cb500 cb550 cb650 cb750 cognitomoto croig custombikebuild custombuild dotheton motodemic motorcycle ride streettracker wr450f yahmaha ycb450f