RAM® Handlebar U-Bolt Double Ball Mount - B Size Medium RAM-B-149Z-GA35U The tightening knob has been

The tightening knob has been replaced with a keyed locking knob on the double socket arm

5” drill-down round ball base featuring the universal AMPS hole pattern

RAM's rugged construction

68" round bases

RAM® Handlebar U-Bolt Double Ball Mount - B Size Medium RAM-B-149Z-GA35U The tightening knob has beenThe RAM B 149ZU consists of a zinc coated U bolt base, double socket arm, and diamond adapter base. The diamond adapter base has a hole pattern that matches the industry standard AMPS hole pattern and will connect to a large variety of RAM components. Included is hardware that will accommodate rails from . 5" to 1. 25" in diameter. A composite rail adapter can narrow the rail to a minimum width of 0. 5. Also included is a B size medium length double