SKU: 75977262380

RAM Yoke Clamp Base with Diamond Plate - Composite - Short Arm

Sale price$75.78 Regular price$84.20
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Description

RAM Yoke Clamp Base with Diamond Plate - Composite - Short ArmRAP B 121 A 238U Composite Yoke Clamp Base with Short Arm and Diamond Base Plate Features * Clamp Base will work on yokes rails 15. 9 to 31. 8mm diameter * Diamond plate connects to RAM cradles containing the 2 hole AMPS pattern * Included short B size 1" RAM double socket arm with RAM ball and socket technology allows for near infinite adjust ability * Made of high strength composite for durability and reliability in the most demanding environments *

RAP-B-121-A-238U Composite Yoke Clamp Base with Short Arm and Diamond Base Plate

Features

* Clamp Base will work on yokes / rails 15.9 to 31.8mm diameter
* Diamond plate connects to RAM® cradles containing the 2 hole AMPS pattern
* Included short B size 1" RAM® double socket arm with RAM® ball and socket technology allows for near-infinite adjust-ability
* Made of high-strength composite for durability and reliability in the most demanding environments
* Backed by a lifetime warranty


Both strong and light weight, 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 mobility device or wheelchair, golf cart, work bench, or even exercise equipment. With RAM, there are no limits.

The RAP-B-121BU also accepts a second 1" removable ball. (RAP-B-121BBU)

Mated with the short arm and diamond base plate this mount will match to most RAM cradles that contain the 2-hole AMP's pattern.

Arm Dimensions:
Overall Length:
61.5mm (2.42")
Socket-To-Socket Length:
44.5mm (1.75")

Clamp Base Dimensions:
15.9 to 31.8mm (0.625" to 1.25") in diameter

Hole Pattern
2-Hole AMPS:
48.56mm / 1.912"

Ball/Socket Size
B Size (1")

Materials
High strength composite

Weight
0.249 kg (0.55 lbs.)

Weight Capacity
0.204 kg (0.45 lbs)

Components
RAP-B-238U 63 X 33mm BASE W/ BALL
RAP-B-201U-A PLASTIC DBL SOCKET ARM - SHORT
RAP-B-121BU UNIVERSAL CLAMP

YouTube:
https://www.youtube.com/watch?v=s0l6AQ5xprI

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 75977262380

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4.9 ★★★★★
Based on 19 reviews
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Product Reviews
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Verified Purchase
RAFFAELE RUSSO
Whiting, US
★★★★★ 5
Excellent socks
Size: X-Large, Color: White
Awesome love them
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 24, 2026
R
Verified Purchase
Robert D Steffes
Grantham, US
★★★★★ 5
very comfortable
Size: Large, Color: White
very cushioning and good value. These are my favorite socks.
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Reviewed in the United States on December 13, 2025
C
Verified Purchase
Chris in Houston
Louisville, US
★★★★★ 5
Finally, socks that fit and are comfortable
Size: X-Large, Color: White
I wear size 12.5 Wide shoes and have been through numerous "large" socks that shrink after the first wash and then are just too small. Local stores sell very few options in XL. Decided to give these a try and I'm glad I did. I like the height (just over the ankle joint) versus low cut or no-show, which tend to allow junk into the gaps. I like the material. It's thinner on top nd doesn't have compression areas. It's not overly thick, so if you are looking for cushion or extra support, look elsewhere. I have the same sock in a no-show in gray, but they are size L and are just a little too small, so I knew ahead what I was in for construction-wise. Those have been plenty durable, so it checks all the boxes. I'll be ordering some XLs in black and will keep on the lookout for gray.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 3, 2021
A
Verified Purchase
Amazon Customer
Belleville, US
★★★★★ 5
Nice fit & holds shape
Size: Large, Color: White
Wear well. Hold up in use. Maintain a shape after multiple uses.
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Reviewed in the United States on November 20, 2025
T
Verified Purchase
techfan
Belleville, US
★★★★★ 4
Great socks / a bit expensive
Size: Large, Color: Black
These may be the Goldilocks of the socks I've tried. They have nearly the same quality as the MUCH pricier Darn Tough Vertex Ultralight Cushion Cool Max socks (also reviewed). They have better quality, and a higher price, than a similar pair of PUMA socks (also reviewed). Pros: Very well made, with no loose stitching, comfortable forefoot and heel cushioning, good ventilation via top mesh, good arch compression, minimal logos and mostly solid color. Cons: Price is a bit on the high side, but better than the Darn Tough socks. I could honestly have made a good case for any of these three (ASICS, PUMA, or Darn Tough), which explains their collective high ratings. I did the top 3 reviews first. When I get a chance, I'll go back and review the average and terrible :) If money is no object, get the Darn Tough Vertex. If you're price sensitive, and willing to compromise a bit on quality, go with the PUMAs, which is what I did. Otherwise, these ASICS are near the same quality as the Darn Tough, but less expensive. Tough decisions :)
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Reviewed in the United States on May 9, 2017

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