I think 30 Lbs off the actual bike might be hard to do. But Cat Delete, Air Box Delete, Smaller, or No Rear/Front Fenders, Small LED lights, Straight Pipes (if you can live with the noise) all would help. Fill the tires with Helium? Make sure you take a good dump before you go riding? Not sure on the OPs weight sitaution, but I am in the camp of loosing body weight is the best way, and lots of upside on the health front for many of us. Plus I do not think reducing the mass by a few percentage points makes that much difference for street/road riding. However, a true Bobber is a striped to the bones bike, IMHO. I will be doing a Cat Delete, an Air Box Delete and reducing the size of the lights by going to high intensity LEDs. Once done I will add up the mass/weight numbers and post them.