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RAM Mounts Cradle Adapter
  • RAM Mounts Cradle Adapter - Diamond AMPS Hole Pattern
  • RAM Mounts Cradle Adapter - Round AMPS Hole Pattern
  • RAM Mounts Cradle Adapter

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RAM Mounts Cradle Adapter

The RAM-B-202 consists of a 1" diameter rubber ball connected to a flat 2.5" diameter round base. This mount has pre-drilled holes, including the universal AMPS hole pattern.

The RAM-B-238 consists of a 1" diameter rubber ball connected at right angles to a 2.43" x 1.31" diamond base. The base has 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 RAM-B-347U consists of a 1" diameter rubber ball connected at right angles to a 2" x 1.7" square base. The base has four pre-drilled holes at each corner, making the universal 1.5 x 1.188 (hole spacing) AMPS hole pattern.  This base is designed to hold the following devices:

  • Garmin® zumo™ 400
  • Garmin® zumo™ 450
  • Garmin® zumo™ 500
  • Garmin® zumo™ 550
  • Garmin® zumo™ 660
  • TomTom Rider 2
  • TomTom Urban Rider


  • Powder Coated Marine Grade Aluminum

Ball Size:

  • 1" Rubber Ball "B" Size 

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RAM Mounts Cradle Adapter 5 5 5 5
Sturdy, reliable and sound ball. What I immediately saw once I opened the bag was that the diamond base was METALLIC! The ball is covered in a high quality plastic that makes the adjustability of the whole mount precise and sound. Very happy with my purchase of these RAM piece for my Montana GPS mount on my F800GS. November 10, 2014
getting my gps ready item to get gps ready to mount almost done good quality July 28, 2014
stable attachment with all the mix-n-match from RAM, I wasn't sure this would fit. but was pleasantly surprised at both the flexible attachment location and the stability once mounted. August 19, 2013
Good Quality. I put this RAM ball on my left handle bar bolted with the Grip mounting bolts. I use it for my Cell Pone cradle. Works great. February 4, 2013
Ram mount has always been great This is my sixth or seventh ram mount product. It's made very well and fit my accessories without any issues. I highly recommend this product. January 28, 2013
1-5 of 5
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Have a functionality, fit, or otherwise product-specific question about the RAM Mounts Cradle Adapter? Ask it here! If you have a customer service or shipping question, please direct it to our Customer Service department.

RAM Mounts Cradle Adapter
Already Asked: 3 Questions, 22 Answers
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RevZilla Store asked: Why did you choose this?
Fábio Luiz C: I would like to use this ram mout in the product RAM Mounts Apple iPhone 6 Holder to use in my honda VFR 1200f. Sep 27, 2015
W I: I needed adapters with AMPS hole pattern to mount a couple of RAM accessories. Aug 30, 2015
J U: To mount my cell phone adapter. This rig means business. Aug 14, 2015
Todd S: Same as above Aug 13, 2015
Chris T: This works perfectly for mounting the finger grip. Apr 25, 2015
Alan C: For a Sirius Radio mount Apr 17, 2015
John S: To hold finer grip holder to 6" universal arm. Apr 15, 2015
Jonathan R: Mount on back of phone holder Apr 6, 2015
charlie s: I chose this because it is required to use the RAM mounts. Apr 3, 2015
Chad H: It goes with the GPS holder that I ordered. Mar 28, 2015
Jon T: To mount up my phone so I can text and ride at the same time ;) Mar 20, 2015
Sverre A: I chose the square one to attach my RAM Universal Finger Grip to my moto. Mar 1, 2015
Colin S: This will install on the pre-drilled holes of my AltRider luggage rack. Dec 16, 2014
KEIKO C: Ram mounts are always great quality, wanted this one to share the bracket with the x-mount and a Montana GPS mount.

Oct 21, 2014
Peter R: Needed for the Nuvi 700 series holder to attach. Sep 27, 2014
Sean W: Because you didn't have the one I wanted, which is the 1"x2" base. Sep 16, 2014
Eric F: to mount my iPhone to my Harley Mar 25, 2014
L E: Necessary for the GPS mount I purchased. Feb 23, 2014
Wilson L: Fits back of Garmin Oregon mount cradle. Sep 24, 2013
William U asked: Does it come with mounting screws? I need to mount it to a phone cradle. Sep 25, 2015
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Mike D: No it does not come with the screws.
My cradle had the screws in the package
Sep 25, 2015
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Ron M: Should have stainless screws with it. Sep 26, 2015
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Chih H asked: Does the square mount perfectly fit the 2014 Kawasaki Ninja 650? Dec 6, 2014
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Dayle M: Measure the mounting hole distance, or just buy one and re-drill as required. Jan 13, 2015
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Product Style RevZilla Item # Manufacturer Product # Availability
Black / Round AMPS Hole Pattern 869146 RAM-B-202U In Stock: Ships within 24 hours
Black / Diamond AMPS Hole Pattern 869137 RAM-B-238U In Stock: Ships within 24 hours
Black / Square AMPS Hole Pattern 897419 RAM-B-347U In Stock: Ships within 24 hours