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RAM Mounts U-Bolt Base

Item: P231055

The RAM Mount U-Bolt Handlebar Base is a no nonsense way of attaching one of RAM Mount's 1" rubber balls to your handlebars. Read More

$15.99 - $32.99
Price depends on product options. Make a selection to update price.
Rebate Available! View Details
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Product Details

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
Product Style RevZilla Item # MFR. Product # Availability
Product Style Black Aluminum RevZilla Item #869154 MFR. Product #RAM-B-231ZU AvailabilityIn Stock: Ships within 24 hours
Product Style Chrome Aluminum RevZilla Item #869125 MFR. Product #RAM-B-231CHU AvailabilityOnly 2 Left: Ships within 24 hours
Product Style Stainless Steel RevZilla Item #1096107 MFR. Product #RAM-B-231U AvailabilityIn Stock: Ships within 24 hours


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Product Description
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Shipping & Returns

Reviews & Questions

4.8 / 5.0
35 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Bang For The Buck
4.7 / 5
5.0 / 5
4.6 / 5
Ease Of Install
4.8 / 5
Fit & Finish
4.4 / 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
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
1 year ago
Bang For The Buck
5 / 5
Versatile mount system. I use it on both my bikes.
June 15, 2015
over 3 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 3 years ago
2013 BMW K1600GT
Bang For The Buck
5 / 5
Item works as you would expect.
This item mounts to handle bars easily and when properly tightened provides a stable platform for all RAM mount items.
July 26, 2016
over 2 years ago
2013 Honda CRF250L
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
4 / 5
5 / 5
4 / 5
Ease Of Install
4 / 5
Fit & Finish
4 / 5
Great concept and system, quality not perfect
I purchased the u-bolt base, short arm, and large phone X-Grip to mount my iPhone 6S plus in a Mophie battery case to the handlebars of my BMW R Nine T Pure. My chief complaint is about the quality of the u-bolt base. The base comes with two sizes of u-bolt. I used the larger one to mount the RAM system to the 1-1/8 section of the handlebars next to the riser. The base really should come with a thin rubber sheet to allow for better grip. I had a thin neoprene sheet that I cut to surround the handlebar. Worse yet was the fact that the slots in the base were too narrow to allow the base to skip over the u-bolt. I had to get out a narrow file to enlarge the slots. After all was said and done, the system is fine and secure but I think RAM could pay attention to their quality a bit better.
August 21, 2018
3 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
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 4 questions Browse 4 questions and 55 answers
Why did you choose this?
RevZilla Store
To securely mount my smartphone to my bike. I use it as my GPS AND dashcam while riding.
Greg P on Oct 9, 2017
needed to secure cell frone
Randy S on Aug 31, 2017
To securely mount my smartphone to my bike. I use it as my GPS AND dashcam while riding.
Greg P on Oct 9, 2017
Needed for my bicycle.
Tim S on Sep 8, 2017
needed to secure cell frone
Randy S on Aug 31, 2017
EDDY S on Aug 17, 2017
works well
Steven B on Aug 10, 2017
Mount my cell phone
T O on Jul 27, 2017
Revzilla recommended it!
Kevin M on Jul 17, 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.
Jesse T 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
Needed for my bicycle.
Tim S on Sep 8, 2017
EDDY S on Aug 17, 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.
35 Customer Reviews
35 5/5
3 Questions & 5 Answers
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