Universal Motorcycle Stem Mount and TiGRA Fitclic Case for iPhone 11 (sku 51225)Universal Stem Mount and TiGRA Fitclic Case for iPhone 11 A mount that fits the opening in the top of the steering stem. Uses an O ring shaft that gets progressively tighter as it is installed. Mounts devices center of bike over the top triple clamp. 13mm expandable stem post and 6 extra O ring Post Bushings (15mm,16mm,17mm,18mm,19mm,24mm) Ideal for sport motorbikes. MountCase; Slim, pocket friendly bumper case ideal for daily use In composite