Insta360 Motorcycle U Bolt Mount TechGadget.gr Motorcycle Bike Handlebar Phone Mount Holder Waterproof Case for Bike Motorcycle Handlebar Mount for Samsung Galaxy A54 M51 S20,21,23 Sfd1ee6586e2d4e98b02702b5290c6998G.jpg. Motorbike Metal U Bolt Mount Kit & Quick Grip Holder for Samsung Galaxy S7 Cradle Clamping Dimensions: Height Range: 4. 75 inch 5. 75 inch (approx 12cm 14. 6cm) Width Range: 2. 19 inch 3. 25 inch (approx 5. 5cm 8. 2cm) Max Depth: 0. 72 inch (approx 1. 8cm) Mount; Accommodates rails from 0. 5 to 1. 25 inch in diameter (1. 2cm 3. 1cm) Two u bolts supplied: 1 x 1 inch (2. 5cm) & 1 x 1. 25 inch (3. 1cm) Zinc coated steel (not rust proof)