Motorcycle Fork Stem Yoke iPhone 4 Powered Mount Kit. Fits 13.3mm - 14.7mm (sku 13947) Complete waterproof motorcycle mount kit for the Apple iPhone 4. IPX4 suitable for rain showers and damp weather. Designed to fit sports, superbike, endurance and touring motorbikes using the cylindrical bore wall (steering head tube) of the fork stems. Fits holes 13.3mm - 14.7mm (0.52" - 0.58") Includes the iPhone 4 Tough Case with sensitive touch lens, camera, light sensor & function button access. Includes waterproof fused 6-24v direct to battery charging cable with LED indicator & weather caps What's included 1 x 13.3mm-14.7mm Fork Stem Mount, 1 x iphone 4 Tough Case & 1 x Hardwire cable.