17.5mm - 20.5mm iPhone 5 Sports Motorcycle Fork Stem Yoke Tough Case Mount (sku 16199) Sports motorcycle yoke mount with dedicated Apple iPhone 5, 5S tough case (not suitable for iPhone 5C); central fork stem hole fitting for holes 17.5-20.5mm / 0.68"-0.81". Designed to fit sports, superbike, endurance and touring motorbikes using the cylindrical bore wall (steering head tube) of the fork stems. The tough case is a Polycarbonate hard shell holder with dedicated anti-shock silicon liner; includes a detachable lanyard & internal screen protector. IPX4 standard waterproof Case offers protection from water splashes / light rain showers, dust & dirt. This robust protective case has been designed to withstand daily use. Case contains bespoke silicon liner which contours the phone perfectly, cushioning it against knocks or bumps and reducing shock if dropped. Sensitive front lens ensures your phone can be accessed easily to make and receive call and use camera. The Mount features the 1" Ball fixing; light weight - made from Aluminium; attaches easily to the steering head tube of fork stems; easy to fit and completely removable; 3-prong adaptor joins mount to case.