24mm Sports Bike Motorcycle Fork Stem Yoke 5inch Screen GPS Satnav Mount (SKU 16141) Sports Bike Motorcycle Mount for Fork Stem Yoke holes 20.5mm-24.5mm (0.81" - 0.96") supplied with an IPX4 waterproof GPS Case. Fits most 5" screen devices (measured diagonally). Now you can use your 'CAR' GPS SatNav system on your motorbike without worrying about getting caught in the rain; IPX4 waterproof - protects from water splashes, light rain showers and damp weather. Motorcycle Fork Stem Yoke Mount Fits Stems: 20.5mm-24.5mm (0.81" - 0.96"); the 1" Ball fixing connects mount to case; light weight - made from Aluminium; attaches easily to the steering head tube of fork stems. Includes a WATERPROOF GPS SatNav protective case which will protect from rain and damp weather. Water resistant zip. The case has a clear touch sensitive lens so your SatNav can be accessed while in the case; cable access - flanged cut out provides access for your charging cable & sufficient space for cable to be inserted; foam inserts support varying sizes of GPS device; brass security screw ensures the case stays put; case unclips easily for security & storage.