RAM Mounts U-Bolt Base
  • RAM Mounts U-Bolt Base - Black Aluminum
  • RAM Mounts U-Bolt Base - Chrome Aluminum
  • RAM Mounts U-Bolt Base - Stainless Steel
  • RAM Mounts U-Bolt Base - Black

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Video Review

RAM Mounts U-Bolt Base Videos

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

The RAM Mount U-Bolt 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. Both the black aluminum and stainless steel options come with a composite adapter that can narrow the rail to a minimum width of 0.5".

U-Bolt Dimensions:

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


  • Powder Coated Marine Grade Aluminum or Powder Coated Marine Grade Aluminum with Chrome Finish
  • Stainless Steel with natural finish

Ball Size:

  • 1" Rubber Ball "B" Size
4.8 / 5
Bang For The Buck
4.7 / 5
5 / 5
5 / 5
Ease Of Install
5 / 5
Fit & Finish
5 / 5
Product Style RevZilla Item # Manufacturer Product # Availability
Chrome Aluminum 869125 RAM-B-231CHU In Stock: Ships within 24 hours
Black Aluminum 869154 RAM-B-231ZU In Stock: Ships within 24 hours
Stainless Steel 1096107 RAM-B-231U In Stock: Ships within 24 hours


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4.8 / 5.0
33 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Bang For The Buck
4.7 / 5
5.0 / 5
5.0 / 5
Ease Of Install
5.0 / 5
Fit & Finish
5.0 / 5
Bang For The Buck
3 / 5
Works like a charm!
My Audace has Bluetooth which interfaces with the Moto Guzzi iPhone app to display various pieces of information about my bike. The Audace, like most cruisers, doesn't come from the factory with a phone mount. I went to a local motorcycle accessory store (sorry Revzilla, I needed it immediately...or so I thought) and they had a kit that included a Ram Mount X-Grip to hold the phone and a fork stem mount. The fork stem mount seems to work but I'm not 100% certain that it won't start moving around a little. Worse, the drag bars on my bike limit the adjustment so when the sun starts glaring off the screen it is difficult to quickly move the phone without stopping the bike.

Revzilla to the rescue! I ordered the U-Bolt base and installed it on my handlebars near the left grip. It mounts securely without any wiggling or wobbling. Even better, it allows the X-Grip to be clear of the bike so I can adjust the position of my phone all I want.

I subtracted a star because I consider it a bit pricey for a u-bolt, 2 screws, and 2 nuts. However, that is typical for Ram Mount items in general and at least the quality is there. It does come with a couple of black rubber caps to put over the end of the bolts/nuts but I'm pretty sure it won't be long until they fly off (which is no big deal, I don't think it looks bad without them). My only suggestion for potential owners is that you'd do well to invest in some Plasti Dip and rubberize the u-bolt where it makes contact with the handlebars. I haven't gotten around to it yet and my bars haven't been scratched but it's not worth the risk of marring the finish.

If this is a solution for your mounting problem then you can't go wrong with the Ram Mount U-Bolt Base.
August 22, 2015
2016 Moto Guzzi Audace
Bang For The Buck
5 / 5
Versatile mount system. I use it on both my bikes.
June 15, 2015
over 2 years ago
2012 BMW R1200RT
Bang For The Buck
5 / 5
Pallet on my bmw k1600gt
If you ride and have a cell phone, you need this product. I have this in combination with the short arm and x-holder. It's secure and never moves. It's a must have. Now for a Bluetooth lol
May 27, 2015
over 2 years ago
2013 BMW K1600GT
Bang For The Buck
4 / 5
Works as intended
This RAM mount does exactly what I want it to do (attach my phone to my handle bars) but I wish the U part was rubber coated as opposed to painted metal. It will scratch your handle bars if you don't put tape on them first. Minor gripe.
April 29, 2015
2012 Triumph Tiger 800 XC
Bang For The Buck
5 / 5
5 / 5
5 / 5
Ease Of Install
5 / 5
Fit & Finish
5 / 5
Fit the DRZ perfectly. Even a good size to fit the crossbar which has a small diameter. Feels sturdy and well built.
May 12, 2017
2 months ago
Bang For The Buck
5 / 5
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 as a rock
I love the RAM mount equipment. I can move my GPS from one bike to another quickly, easily and reliably.
April 10, 2015
Bang For The Buck
5 / 5
Mount for GPS
Cheap and easy mount for Garmin on my Triumph Explorer.
May 12, 2014
2013 Triumph Tiger Explorer
Bang For The Buck
5 / 5
Easy to install and works perfectly.
Super easy to install and super secure. I have complete confidence that this will hold my devices safely.
April 13, 2015
2013 Triumph Speed Triple R
Bang For The Buck
5 / 5
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
2000 Honda Valkyrie GL1500
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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.

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Browse 4 questions Browse 4 questions and 55 answers
Why did you choose this?
RevZilla Store
Fits anywhere in my bike!
Cláudio B on Jun 23, 2017
Great fit for the '17 Ural patrol handlebars.
Eric M on May 31, 2017
Fits anywhere in my bike!
Cláudio B on Jun 23, 2017
Use to mount cell phone.
Calvin C on Jun 9, 2017
Great fit for the '17 Ural patrol handlebars.
Eric M on May 31, 2017
Mount Spot GPS tracker for long adventure trip.
Eric J on May 26, 2017
For the X-Grip IV
H E on May 22, 2017
Low profile design, easy to use.
Anuranjan P on May 12, 2017
Needed a good mount to hold my phablet on my bike.
Jason S on May 6, 2017
best phone mount i could've purchased for my bike. was able the ride over 80mph with 18 mph wides and no movement at all.
terry p on May 6, 2017
I have some other Ram Mount stuff and I love it.
jtsharps on May 1, 2017
Quality item, works well.
Jon P on Apr 21, 2017
Carl S on Apr 20, 2017
Allows mounting of GPS and iPhone RAM mounts on my Thruxton with 1 in handlebars. Easy to move the RAM device mount from bike to bike in my garage.
Mark H on Feb 20, 2017
to mount on my bike
Mike D on Feb 15, 2017
I bought this so I could get the kick stand down on my KTM 690 without falling over. Being only 5'4" doesn't help
Nicholas T on Feb 4, 2017
Needed to use the RAM mounts Universal Cell Phone Holder accessory.
Scott K on Jan 14, 2017
I have the rest of the base at home and RAM Mounts are the best!!
Armando Y on Dec 29, 2016
Because it's awesome.
Cal C on Oct 28, 2016
more mounting possibilities
" " on Sep 20, 2016
I wanted to use my RAM X-grip mount on multiple bikes easily
Clayton K on Aug 16, 2016
Mount my phone
David A on Aug 6, 2016
Phillip H on Jul 4, 2016
solid no moving parts
280582 G on Jul 4, 2016
Looks very solid.
Gary A on Jun 3, 2016
Needed to mount phone
Katharine L on May 30, 2016
Ram mounts are a great and inexpensive way to securely mount most accessories.
Rdcannon17 on Apr 25, 2016
Fits good, looks good, works good
Terry G on Apr 24, 2016
Need this mount to install my GPS on my motorcycle. Have always had good success with RAM mounts.
Thomas S on Apr 12, 2016
To mount on a second bike for my cell phone holder (RAM Mounts U-Bolt Kit and Universal Finger Grip Cell Phone Holder)
Bill E on Mar 31, 2016
Ram mounts are by far more stable and vibration friendly than standard GoPro mounts
Steven W on Mar 29, 2016
I have once already and I needed a second set for my other bike.
RAMIRO C on Mar 22, 2016
Felt like this would provide the most secure, rugged, mount for a SPOT Gen3 on-road/off-road experience with a BMW GSA motorcycle.
Thomas C on Feb 15, 2016
To accomodate a GPS device or Cell phone.
Dennis S on Dec 12, 2015
Its is what fit my bike.
Peter U on Sep 27, 2015
These things are awesome. They help with any gadgets!
Christopher S on Sep 15, 2015
want to use my GPS hopping this will keep it steady so it will be nice & clear with out all the vibration.
Brad S on Aug 25, 2015
Need the handlebar mount for my X-grip to better fit my cockpit layout.
Mr. H on Aug 2, 2015
because shipping was free with orders over 39.$
lloyd c on Jul 15, 2015
I have RAM mounts on my other bike. I like their products and am getting this for my new bike.
P I on Jul 12, 2015
because its a piece of the phone mount for my motorcycle
jeremiah r on Jul 11, 2015
once you buy into Ram mount it is easy to add new vehicles to your collection. I bought this one piece and the phone mount from the car moves over to the bike
shawn g on May 2, 2015
To use with a GoPro on crash guard
Alan C on Apr 17, 2015
mount gps
Mark J on Mar 23, 2015
I needed a way to hold my cell phone for GPS.
Jacob C on Feb 15, 2015
many mounting options
George J on Feb 11, 2015
To attach my phone to my handlebars.
Anthony M on Jan 28, 2015
Needed to mount my SONY Action Cam using my current RAM mounts I have on my 2014.5 KLR650.
Tracy on Oct 2, 2014
I have a Samsung Note 2 in a Otterbox and want to be able to see GPS while traveling.
Andrew R on Sep 30, 2014
I really like torture.
Sean W on Sep 16, 2014
great reviews
Angel R on Aug 16, 2014
Easy to mount on the handlebars- may change to a different model eventually but this will get it started.
Christopher M on Aug 12, 2014
Use to mount cell phone.
Calvin C on Jun 9, 2017
Mount Spot GPS tracker for long adventure trip.
Eric J on May 26, 2017
Will this mount work on a 2000 Electra glide?
A shopper on Dec 19, 2014
BEST ANSWER: measure your handlebar diameter with a soft tape measure and check the clamp diameter with Ram Mounts.
Will this fit the Garmin Nuvi 200 mount?
A shopper on Jun 24, 2014
BEST ANSWER: 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 !
What motorcycle mount is best for 1.25 bars with a garmin 2699 6" screen?
A shopper on Mar 1, 2017
BEST ANSWER: I use the U bolt for all my bikes (even for my microlight airplane). You can always bend the U bolt open if the bar is slightly too big.