Hi all, I built a small e-bike out of Schwinn Stingray Chopper, it goes over 30 mph, weighs a ton, plus I'm 230+ lb. The rear brakes are pretty large, plus I added front brakes, however, I'd like more stopping power. Are there better brake pads available. I am occasional rider, so I am not sure I want to invest in hydraulic disk brakes just yet. Thanks.