Amazon.com: Lab Mounts Motomount R7 Steering Stem Nut (Aluminium Open 13.3 14.7mm Motorcycle Fork Stem Phone Mount Quick Grip XL Holder for Samsung Galaxy S21 Plus (sku 56852) Kewig Motorcycle Fork Stem Phone Mount, Motorcycle Phone Mount, 1S One BRCOVAN Motorcycle Fork Stem Phone Mount with Qi 15W Wireless Charger 7 Best Phone Mounts for Yamaha FJR1300: Keep Your Navigation in Sight. 13. 3 14. 7mm Motorcycle Fork Stem Phone Mount Quick Grip Holder for Samsung Galaxy S21 Plus The Quick Grip device mount is capable of holding a broad range of electronic devices. The spring loaded mechanism and the adjustable side keepers allow for a secure grip on your device. Whether it is a cell, GPS, blue tooth speaker or anything that will fit in the dimensions of the cradle, your electronics will be secure. Included is a set of two nuts and bolts Cradle Clamping Dimensions: Height Range: 5. 75 inch 8. 25 inch (approx 14cm 20. 9cm) Width Range: 2. 625 inch 3. 625 inch (approx 6. 6cm 9. 2cm) Max Depth: 0. 72 inch (approx 1. 8cm) About the Mount: This central fork stem yoke mount has been developed for use on bikes where a handlebar mounting option is not possible or desirable. Designed to fit sports, superbike, endurance and touring motorbikes using the cylindrical bore wall (steering head tube) of the fork stems. Mount Fits Stems: 13. 3mm 14. 7mm (0. 52 inch 0. 58 inch) Light weight made from Aluminium. Attaches easily to the steering head tube of fork stems. Easy to fit and completely removable.