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RAM Mounts RAM-B-252U 11mm Bolt Head Adapter Ball Base with B Size 1" Ball

  • Based on 404 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Tuesday, Nov 26
Order within 23 hours and 34 minutes
Available payment plans shown during checkout

Style: Flat, 11mm Hole


Features

  • Features an 11mm hole designed to attach to the mirror frame of motorcycles
  • Included B size 1" RAM rubber ball allows for connection to any B size RAM double socket arm; ball and socket technology allows for near-infinite adjustability
  • Made of power-coated, marine-grade aluminum for durability and reliability in the most demanding marine environments
  • Backed by a lifetime warranty

Brand: RAM MOUNTS


Color: Black


Mounting Type: Handlebar


Special Feature: Cold Resistant, Heat Resistant, Rust Resistant


Material: Aluminum


Item Dimensions LxWxH: 1 x 2 x 2 inches


Vehicle Service Type: Motorcycle


Model: RAM-B-252U


Item Weight: 0.1 Pounds


Manufacturer: ‎RAM Mounts


Brand: ‎RAM MOUNTS


Model: ‎RAM-B-252U


Item Weight: ‎1.6 ounces


Product Dimensions: ‎1 x 2 x 2 inches


Country of Origin: ‎USA


Item model number: ‎RAM-B-252U


Is Discontinued By Manufacturer: ‎No


Manufacturer Part Number: ‎RAM-B-252U


Special Features: ‎Cold Resistant, Heat Resistant, Rust Resistant


Date First Available: January 20, 2008


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Nov 26

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Exactly what I needed
Style: Flat, 11mm Hole
I used this on my mirror stem to mount a RAM mount that I modified to mount my EZpass tag. Perfect fit, worked out great.
Reviewed in the United States on March 22, 2023 by Robert McLaughlin

  • Great
Style: Flat, 11mm Hole
Pair this with a RAM Mounts Short Arm and the Tackform Motorcycle Phone Mount - 1" Ball Connection and you have the perfect phone setup.
Reviewed in the United States on January 20, 2023 by S. Billings

  • Best mounts in the business
Style: Flat, 11mm Hole
Best mounts in the business. I use them for all my AIM installs
Reviewed in the United States on September 27, 2022 by Scott A.

  • Awesome
Style: Flat, 11mm Hole
Used this to mount a quadlock to my brake reservoir . I have a gpr stabilizer over my stem nut on my r6 so this comes in super handy
Reviewed in the United States on March 7, 2022 by Ryan e.

  • Good value
Style: Flat, 11mm Hole
Works well
Reviewed in the United States on April 17, 2022 by DONNA B

  • Cant take a lot of pressure from bolt, but once installed, works great.
Style: Flat, 11mm Hole
This mount has the flat piece made from cast aluminum, and is very sensitive to having a bolt torqued down on it hard. As long as some LocTite is used to secure the bolt, then there is no need to apply a lot of pressure on the RAM Mount, risking it breaking. The ball is a standard 1" RAM ball that adapts to other RAM mounts and works perfectly as advertised. The soft cover on the ball allows an extension to grip it securely, and having my phone mounted on my motorcycle wasn't a cause for concern, even at highway speeds. Phone had little to no shaking during riding, and now I have GPS on my motorcycle! I installed this on a 2015 Yamaha FZ-07, using one of the bolts that secure the Speedometer/Tachometer display to it's bracket. Other locations might yield different results. ... show more
Reviewed in the United States on September 22, 2015 by Marco D

  • Does what it is supposed to
Style: Flat, 11mm Hole
Ended up mounting it upside down off my left mirror to get my phone closer to the handlebars but all in all it worked out. Make sure you tighten up snug to avoid movement in the phone/camera mount.
Reviewed in the United States on July 17, 2021 by BMW BMW

  • Perfect Ultra Gauge mount!
Style: Flat, 11mm Hole
I used this to mount an Ultra Gauge on the A-pillar handle of my 1997 Toyota Land Cruiser (along with a Solve Function 3D printed holder, and short RAM arm) It was a perfect fit!
Reviewed in the United States on August 18, 2021 by Pitch

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