Patented

RAM® Composite Yoke Clamp Ball Base

Part#: RAP-B-121BU
UPC: 793442907807

Kit Components

$28.99

Overview

Both strong and lightweight, the RAP-B-121BU clamping base is perfect for numerous electronic devices. Modular in design, switch out the clamps for a perfect fit no matter what the mounting surface, or add a second ball to mount another device; brilliant. Crafted to hold firm to most glare shields, yokes, or tubing, practically any aircraft can benefit from this product. Simple to use and exceptionally versatile, RAM has created another “must have” for any pilot. Once you've had a chance to use this great little device, we’re confident you'll find uses for it no matter what you fly, drive, or ride. With everything you get in this package, you may even find yourself using your new RAM Mount on a golf cart, work bench, or even exercise equipment. With RAM, there are no limits.

hardware included:

Flat Clamp Hardware Adapter

clamp range:

.625" - 1.25"

ball size:

B Size (1")

weight capacity:

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

materials:

High strength composite

packaging type:

Poly Bag

Weight:

0.29 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.

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QUESTIONS & ANSWERS

Have a Question?

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  • What is the max diameter bar this can accomodate?

    The maximum diameter that the RAP-B-121BU will accommodate is 1.25".

RAM® Composite Yoke Clamp Ball Base
$28.99

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

B Size Double Socket Arms
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