ive had them in my tires now for over 3000 mi no problems as far as romans concerns about the valve stem leakage you need to spend the couple bucks and have the screened valve stems put in the wheels. they sell them on the dynabead web site
08 zx14se Brocks CT Duals, Brocks street map, Driven 16/43 sprockets,EK ZZZ Chain,MRA Windscreen, Roaring Toyz Diamond Cut Grips Pingel Elec shifter, Hyper-Pro RSC Damper, BlackChrome Wheels, Sargent Seat,Factory Pro Velocity Stacks,PCIII USB,Bonneville Pro, TPX Radar/Laser Detector, TPX Laser Jammer, Goodridge Shadow series braided lines front and rear, Rifleman 1/5 turn throttle, Fusion LED Stage IV Kit, DDM HID's 10,000k