Yoke 20 Nut Motorbike Mount & Dedicated Cradle for Garmin Alpha devices (sku 49982)Yoke 20 Nut Motorbike Mount & Dedicated Cradle for Garmin Alpha devices Mount; Clips into the integrated spine connection on a wide range of Garmin GPS and satellite communication handheld devices Compatible Garmin: Alpha 100 Yoke Nut Base Fits: Size 25mm Thread Pitch 1. 00mm Socket Size 36mm Colour Black Height 50mm Fitting tighten to manufactures torque setting Example of possible suitable bikes: Note: This is not a fully conclusive list fitting