RAM® Handlebar U-Bolt Mount for Garmin nuvi 52, 54, 55, 56, 57, & 58 5.69" The RAM-B-138-GA34U consists of a

The RAM-B-138-GA34U consists of a double socket arm

The RAM-A-237U

5" diameter ball attached to a VESA plate with 75mm and 100mm VESA hole patterns

The RAM-247U-4NH is a clamp base with 1

double socket arm and gun holster clip

RAM® Handlebar U-Bolt Mount for Garmin nuvi 52, 54, 55, 56, 57, & 58 5.69" The RAM-B-138-GA34U consists of aThe RAM B 149Z GA55U consists of a double socket arm, zinc coated u bolt base, diamond adapter base and custom high strength composite cradle. Designed into the mount is a 1" diameter patented rubber ball and socket system with adjustment points at the base and cradle. With a twist of the arm knob, you can move the motorcycle Rino mount to your optimum viewing position. Included in this package is hardware that will accommodate rails from 0. 50" to 1.