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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 3 3
RAM Mount should be the only brand you use! I have seen too many falling phones with non Ram Mount phone and GPS mounts and will never use anything other than RAM on my bikes. Easy to install and multiple options for swing arms allowing you to customize where you put your phone. Simple system but strong and when installed correctly, won't budge! October 14, 2013
Solid & Secure Cell Phone Mount Hooked up my 1999 Buell M2 with this RAM Mount set up (U-Bolt base, short arm, and the universal cell phone holder). Holds everything solid and securely despite the rumble and vibrations of the big twin! May 20, 2013
works well and looks good this RAM mount in chrome actually looks good on my 71 Moto Guzzi Ambassador, and holds my GPS perferctly May 20, 2013
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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: 1 Question, 3 Answers
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RevZilla Store asked: Why did you choose this?
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
Product Style RevZilla SKU ID Manufacturer Product # Availability
Black 869154 RAM-B-231Z In Stock: Ships within 24 hours
Chrome 869125 RAM-B-231CH Available: Usually ships in 1-2 business days