Patented

RAM® Wedge Ball Adapter for RAM®, Attwood & Fish-on Bases - C Size

Part#: RAP-354-75U
UPC: 793442913006
$20.99

hardware included:

Assembly Hardware

wedge dimensions:

Fits tube diameters .75" - .875"

ball size:

C Size (1.5")

weight capacity:

Standard Use: 4 lbs
Heavy-Duty Use: 3 lbs

materials:

High strength composite

packaging type:

Poly Bag

Weight:

0.19 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

RAM Wedge Base Assembly Guide

Documents

On Water Catalog
Knowledge Base: Ball Sizes

QUESTIONS & ANSWERS

Have a Question?

Ask a Question

  • Will this spin in the socket base or does it lock in place to keep from spinning? How do you engage and disengage to remove from the base socket?

    The RAP-354-75U is a wedge mount that will expand to fit tubes with a diameter between .75" and .875" in diameter. By twisting the ball portion on top, the "wedge" will expand, keeping the ball adapter in place. Instruction can be found under the resources tab.
RAM® Wedge Ball Adapter for RAM®, Attwood & Fish-on Bases - C Size
$20.99

Size Guide

Ball sizes
  • A Size 0.56" ball
  • B Size 1" ball
  • C Size — this product 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
B1" (25.4 mm)2 lbsPhones, GPS units, and small tablets — the most common size
C — this product1.5" (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

C Size Double Socket Arms
See All
RAM® Double Socket Arm - C Size Medium RAM-201U $31.49
RAM® Double Socket Arm - C Size Long RAM-201U-D $57.49
RAM® Double Socket Arm - C Size Short RAM-201U-B $29.49
RAM® Double Socket Swivel & Ratchet Arm - C Size RAP-200-2U $40.99
RAM® Composite Double Socket Arm - C Size Short RAP-201U-B $17.49
RAM® Composite Double Socket Arm - C Size Medium RAP-201U $22.49
RAM® Double Socket Swivel Arm - C Size RAP-200-12U $31.99
RAM® Double Socket Arm with Metal Knob - C Size Long RAM-201MU-D $75.99
RAM® Double Socket Arm with Metal Knob - C Size Medium RAM-201MU $49.49
RAM® Flex-Arm™ with 18" Aluminum Rod and Two Single Socket Arms RAM-316-2U $65.49
RAM® Double Socket Arm with Metal Knob - C Size Short RAM-201MU-B $41.99
RAM® Double Socket Arm with RAM® Pin-Lock™ Security Knob - C Size Medium RAM-201-SU $38.49
RAM® Double Socket Arm with RAM® Pin-Lock™ 5-Pin Security Knob - C Size RAM-201-BS-KEY5U $36.99
RAM® Double Socket Arm with RAM® Pin-Lock™ Security Knob - C Size Short RAM-201-BSU $36.99
RAM® Double Socket Arm with RAM® Pin-Lock™ 5-Pin Security Knob RAM-201-S-KEY5U $39.49
RAM® Double Socket Arm with Steel Key Lock Knob - C Size Medium RAM-201LSU $62.99
RAM® Double Socket Arm with Brass Key Lock Knob - C Size Short RAM-201U-BL $65.49
RAM® Composite Double Socket Arm with 5-Pin RAM® Pin-Lock™ Security Knob RAP-201-S-KEY5U $30.49
RAM® Double Socket Arm with Brass Key Lock Knob - C Size Medium RAM-201LU $69.99
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