I don't give a rats ass how hot a Harley gets since I don't own one but I do know that a RT3 gets too hot on the right side when in traffic here in Vegas any time its 100 degrees or more. My pipes are wrapped behind the heat shields and that helps some. No problem with heat if the bike is moving along but sitting in traffic its hot. I love the guys comment about choosing a bike with a monster engine, what do you expect. I agree with him, its gonna put out more heat than most, just the way it is. My v8 bikes put out less heat than the Rocket in traffic but they have larger radiators. The V8 Chopper is usually 170 degrees and the Boss Hoss runs 180 degrees.