This is the RAM Handlebar Mount kit for the Apple iPhone 3G series, including the 3G S. The kit includes the cradle, the diamond base, a medium arm and the U-bolt handlebar mount. This kit will mount to handlebars up to 1" in diameter. Larger U-bolts are available for different handlebar diameters.
This kit provides great flexibility in mounting your iPhone. You can mount it at any angle, it won't slip and it disconnects quickly. The rubber ball mounting system absorbs vibration and doesn't buzz or wiggle when tightened securely.