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RAM Mounts U-Bolt Base
  • Black
  • Black
  • Chrome

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RAM Mounts Rail U-Bolt Base With 1" Ball Mount

The RAM-B-231 and RAM-B-231CH handlebar base contains a 1" rubber ball designed to sit at right angles to the mounting rail. Included are black cover caps to be placed over the exposed ends of the u-bolt.

U-Bolt Dimensions:

  • Black version accommodates rails from 0.5" to 1.25" in diameter
  • Chrome version accomodates rails from 0.5" to 1" in diameter


  • Powder Coated Marine Grade Aluminum or Powder Coated Marine Grade Aluminum with Chrome Finish

Ball Size:

  • 1" Rubber Ball "B" Size
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RAM Mounts U-Bolt Base 4.7 5 11 11
Cheap, Effective When I traded my 2010 FJR for a 2014 Super Tenere, I had to choose a new way to mount my GPS. Since the OEM accessory bar above the instruments vibrates too much, I choose the tried-and-true handlebar-mount solution. This product isn't especially pretty -- especially after the black finish on the nuts wears off, which it will before you finish installing it -- but for the price, it's hard to beat. February 9, 2015
solid product nothing fancy, nothing other than what is described. gets the job done, well made product. October 12, 2014
Mounts RAMs just fine on SFV650 I bought this U-Bolt Base to mount a SPOT tracker thing to my bike for a ~4k mile trip. Install was quick and easy on my 7/8" handlebars, and the mount only moved a little during my trip due to the composite adapter slipping a bit to one side. Otherwise solid. Holds stuff. All good. September 24, 2014
Good product. This mounted easily and securely on my handlebars without marring the surface. It is rock solid. I'm confident it's not going anywhere. September 12, 2014
Great mount Solid product and will be buying multiple bases for all my bikes. just transfer the arm in seconds between bikes for all around usage. September 5, 2014
It just works Simple, solid, reliable. It just works. Perhaps the best way to mount things to your bike. August 25, 2014
GPS stays put Install it and forget about it. Like everything Ram makes.......rock solid. July 14, 2014
Mount for GPS Cheap and easy mount for Garmin on my Triumph Explorer. May 12, 2014
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Have a functionality, fit, or otherwise product-specific question about the RAM Mounts U-Bolt Base? Ask it here! If you have a customer service or shipping question, please direct it to our Customer Service department.

RAM Mounts U-Bolt Base
Already Asked: 3 Questions, 21 Answers
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RevZilla Store asked: Why did you choose this?
Jacob C: I needed a way to hold my cell phone for GPS. Feb 15, 2015
George J: many mounting options Feb 11, 2015
Anthony M: To attach my phone to my handlebars. Jan 28, 2015
Tracy L: Needed to mount my SONY Action Cam using my current RAM mounts I have on my 2014.5 KLR650. Oct 2, 2014
Andrew R: I have a Samsung Note 2 in a Otterbox and want to be able to see GPS while traveling. Sep 30, 2014
Sean W: I really like torture. Sep 16, 2014
Angel R: great reviews Aug 16, 2014
Christopher M: Easy to mount on the handlebars- may change to a different model eventually but this will get it started. Aug 12, 2014
Christopher Z: Needed a mount for a camera project. Jul 13, 2014
Carmelo B: I have one for my GPS,they work great. I stand behind Ram Mounts Products May 31, 2014
James A: I have a whole ram set up on one of my motorcycles to attach my GPS. I have been happy with the mounting system. I want to attach to a second motorcycle. May 17, 2014
Thomas B: needed another ball mount May 10, 2014
Connor F: Needed it for my iphone 5 holder May 5, 2014
Charles Y: Need a place to mount my GPS Apr 22, 2014
Richard G: Currently have a mount that places the GPS higher than I like ... this mount will reduce the mounting position by at least 3". Dec 7, 2013
Jason S: I have used RAM products in the past, and the quality is great. Sep 20, 2013
Chad J: Mount gps to my bike. Works great! Aug 30, 2013
A shopper asked: Will this mount work on a 2000 Electra glide? Dec 19, 2014
Answer this · Send to friends Good question? Yes (0) No (0)
Kyle S: measure your handlebar diameter with a soft tape measure and check the clamp diameter with Ram Mounts. Feb 14, 2015
Reply to Kyle Good answer? Yes (0) No (0)
Dayle M: If it is for 1" bars, not 7/8" it will for fine. Jan 13, 2015
Reply to Dayle Good answer? Yes (0) No (0)
A shopper asked: Will this fit the Garmin Nuvi 200 mount? Jun 24, 2014
Answer this · Send to friends Good question? Yes (0) No (0)
Federico M: This is just the base and that is for a handle bar. Go to ram mounts website and it will let you know what is the right dock for your gps device. That's how I did it. Good luck ! Jun 24, 2014
Reply to Federico Good answer? Yes (0) No (0)
MANAN B: I couldn't answer that question for you. I used it to mount a cell phone/gps holder so I don't know what that Nuvi mount looks like or if it's compatible. Jun 25, 2014
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Product Style RevZilla Item # Manufacturer Product # Availability
Black 869154 RAM-B-231ZU In Stock: Ships next business day
Chrome 869125 RAM-B-231CHU In Stock: Usually ships in 1-2 business days