RAM® Handlebar U-Bolt Double Ball Mount with AMPS Hole Pattern

Part#: RAM-B-149Z-347U
UPC: 793442933240

Compatibility

Garmin

dezl OTR1000 GPSMAP 276Cx zumo 390LM zumo 396 LMT-S zumo 400 zumo 450 zumo 500 zumo 550 zumo 590 zumo 595LM zumo 660 zumo 665 zumo XT zumo XT2

Magellan

TRX7 TRX7 CS

Road

Tech Zumo 590 Tech Zumo 660 Tech Zumo 665

TomTom

Rider 2 Urban Rider

Trail

Tech Voyager Pro

Kit Components

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$46.99

Overview

The RAM-B-149Z-347U consists of a zinc coated u-bolt base, double socket arm and square adapter base that contains the universal AMPS hole pattern. Included in this package is hardware that will accommodate rails from 0.50" to 1.25" in diameter. The base includes black cover caps to be placed over the exposed ends of the u-bolt. The included composite rail adapter can narrow the rail to a minimum width of 0.5". The square adapter base contains four pre-drilled holes at each corner, making the universal 1.5 x 1.188 (hole spacing) AMPS hole pattern. he mount is designed with a RAM 1" diameter patented rubber ball and socket system that has adjustment points at both ends of the double socket arm; this allowing for almost infinite adjustment and perfect viewing angles.

hardware included:

(1) 1/4"-20 U-Bolt for .5" - 1" Rails
(1) 1/4"-20 U-Bolt for 1" - 1.25" Rails
(2) 1/4"-20 Nyloc Nuts
(2) Rubber Caps
(1) U-Bolt Spacer

clamp range:

.5" - 1.25" diameter

socket to socket length:

3"

hole pattern:

4-Hole AMPS: 1.181" x 1.496"

ball size:

B Size (1")

weight capacity:

Standard Use: 2 lbs
Heavy-Duty Use: 1 lb

materials:

Marine-grade aluminum

packaging type:

Poly Bag

Weight:

0.62 lb

Return Policy:

All products purchased from RAM® can be returned within 30 days with no restocking fee (return shipping not provided). See full return policy here.

Print

Instructions

Documents

QUESTIONS & ANSWERS

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  • Will this item support a Lowarce HDS 5 Gen2 that would be mounted to the handlebar of a Polaris Sportsman 550

    The mounting plate on this kit is for Garmin, Magellan and Tomtom devices. For the Lowrance HDS series we recommend the marine mounting plate RAM-111BU, double socket arm RAM-201U and base for the Polaris RAM-235U.

RAM® Handlebar U-Bolt Double Ball Mount with AMPS Hole Pattern
$46.99

Size Guide

Ball sizes
  • A Size 0.56" ball
  • B Size — this product 1" ball
  • C Size 1.5" ball
  • D Size 2.25" ball
  • E Size 3.38" ball

Every RAM® mount is built around a rubber ball and socket system. The ball size sets how much weight the mount can carry. Match it to your device for smooth adjustment with a rock-solid hold.

RAM Mounts ball size specifications and typical uses
Size Ball Diameter Max Load* Best For
A0.56" (14.3 mm)0.5 lbAction cameras and other ultra-light devices
B — this product1" (25.4 mm)2 lbsPhones, GPS units, and small tablets — the most common size
C1.5" (38.1 mm)4 lbsLarge tablets, fish finders, and rougher rides
D2.25" (57.2 mm)6 lbsRugged tablets, laptops, and heavy equipment
E3.38" (85.9 mm)15 lbsLarge displays and demanding aviation or industrial use

*Approximate capacity for a standard ball with a mid-length arm. Shorter arms and steel-reinforced posts increase real-world capacity.

Reading part numbers

The letter after RAM tells you the ball size: RAM-B-166 uses a 1" B ball, while RAM-D-201 uses a 2.25" D ball. C size parts are the exception and carry no letter, so RAM-201U is a C size arm.

Add-on & Accessories

Locking Knobs
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