SKU: 38188488420

RAM Motorcycle Mirror Post Base with Medium Arm and Diamond Base Plate

Sale price$74.88 Regular price$83.20
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Description

RAM Motorcycle Mirror Post Base with Medium Arm and Diamond Base PlateRAM B 180U RAM Double Ball Mount with 9mm Angled Bolt Head Adapter Features * Base has a 9mm hole designed to attach to the mirror frame of motorcycles * B size RAM double socket arm has ball and socket technology which allows for near infinite adjust ability * Diamond base plate features the 2 hole AMPs pattern and will connect directly to many lighter RAM cradles * Made of powder coated, marine grade aluminum for durability and reliability in the

RAM-B-180U RAM® Double Ball Mount with 9mm Angled Bolt Head Adapter

Features

* Base has a 9mm hole designed to attach to the mirror frame of motorcycles
* B size RAM® double socket arm has ball and socket technology which allows for near-infinite adjust-ability
* Diamond base plate features the 2 hole AMPs pattern and will connect directly to many lighter RAM cradles
* Made of powder-coated, marine-grade aluminum for durability and reliability in the most demanding environments
* Backed by a lifetime warranty


The RAM-B-180U consists of a 1" diameter ball base with 9mm hole, double socket arm and diamond base adapter. This mount is often used on motorcycles, attaching to the mirror frame, most commonly found on BMW motorcycles. The 2.43" x 1.31" diamond base contains two holes 1.912" from center to center, matches the industry standard AMPS hole pattern and will connect to a large variety of RAM Mount and third party cradles.


The 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.


The motorcycle base consists of a 1" diameter ball and base with 9mm hole. This part is often used on motorcycles for attaching to the mirror frame however it can be used to attach a mount to almost anything that uses a 9mm bolt.

This mount is a perfect match for BMW bikes.


Material:
Powder Coated Marine Grade Aluminium


Hole Pattern:
2-Hole AMPs:
1.912” (48.5mm)


Arm Dimensions:
Overall Length:
94mm (3.69")
Socket-To-Socket Length:
76mm (3")


Ball Size:
1" Rubber Ball "B" Size


Weight Capacity
Standard Use:
907 grams (2 lbs)
Heavy-Duty Use:
454 grams (1 lb)

Weight

204 grams / 0.45 lbs 



Components:
RAM-B-272U MOTORCYCLE BASE WITH 9MM HOLE
RAM-B-238U 62 X 33mm DIAMOND BASE 
RAM-B-201U DOUBLE SOCKET ARM 

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: 38188488420

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4.3 ★★★★★
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L
Verified Purchase
Langle
Belleville, US
★★★★★ 5
Beautiful and very steady office chair
Color: Brown, Color: Brown
Beautiful, Ergonomic, and very steady for this good quality leather office chair. The side armrests and the back support are very comfortable to seat. The assembly instruction and illustrated photos are quite simple to follow which make ease of assembly. I got the brown color leather which matches perfectly with my desk. Overall , I am very please with this office chair
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 18, 2026
S
Verified Purchase
Santiago
Battle Creek, US
★★★★★ 5
Excellent materials
Number of Items: 2
Incredible craft with this chair. For the price point it could definitely be over double the current price. Comfortable, easy to assemble and excellent materials.
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Reviewed in the United States on June 8, 2026
B
Verified Purchase
blqwlf
Massapequa, US
★★★★★ 5
A good value for the money.
Number of Items: 1
Chair was very easy to assemble. It is a lightweight chair but not cheap. I find it comfortable and the controls work well. Extra bolts are provided which is a great feature. I find the adjustable back support excellent, the head rest moves a little to easily, but it is easy to adjust while sitting.
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Reviewed in the United States on March 26, 2026
J
Verified Purchase
JJ
Draper, US
★★★★★ 4
Overall good chair for a good price
Number of Items: 1
Comfortable chair, but there's a very slight lean. I haven't yet managed to track down what's causing it, but as I slowly spin around, I find myself tilting slightly forward, then left, then back, then right... I've removed the casters and then removed/reinstalled the "ring" of legs, so the next place to check is the connection between the post and seat.
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Reviewed in the United States on February 27, 2026
P
Verified Purchase
Patrick Gunn
Chelsea, US
★★★★★ 5
well made for price
Number of Items: 1
well made and comfortable chair
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 6, 2026

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