RAM® X Grip® Mount Kit Vibe Safe™ U Bolt Medium (RAM-B-149Z-UN7-462) by RAM Mounts

Every great setup starts with the right foundation. The RAM® X Grip® Mount Kit Vibe Safe™ U Bolt Medium (RAM-B-149Z-UN7-462) is a complete, ready-to-install mounting system: device holder, double socket arm and base in one box. Whether you are logging highway miles or crawling a rocky trail, it keeps your gear exactly where you set it.

At Witchdoctors we stock genuine RAM Mounts parts with the same part numbers RAM uses, so you can build a new setup, replace a worn piece or expand the system you already own with confidence.

Why Choose the RAM® X Grip® Mount Kit Vibe Safe™ U Bolt Medium

Buying a complete kit takes the guesswork out of matching parts. Every component in the box is sized to RAM’s 1" B-size ball standard, so the holder, arm and base thread together the first time without adapters. It is the fastest route from “my phone slides around in my pocket” to turn-by-turn navigation, music control and ride tracking right in your line of sight.

The device holder in this listing is the X-Grip® holder for phones about 1.875" to 3.25" wide and up to 0.875" thick (RAM’s published range; measure with your case on).

It uses a U-bolt handlebar rail base for bars roughly 0.5" to 1.25" in diameter.

Key Features and Benefits

• Four-leg spring-loaded X-Grip® design grips the corners without hiding the screen behind foam or plastic
• Vibe-Safe™ damping adapter helps absorb high-frequency engine and trail vibration before it reaches the device
• Base: U-bolt handlebar rail base for bars roughly 0.5" to 1.25" in diameter
• Complete system: holder, double socket arm and base included
• 1" B-size rubber ball-and-socket joints for near-unlimited angle adjustment
• Rubber balls absorb shock and help reduce road and trail vibration
• Single-knob tightening locks the whole arm in place in seconds
• Swap the holder later without replacing the base or arm
• Compatible with the full range of RAM B-size bases, arms and accessories

Specifications

• Brand: RAM Mounts
• Part number: RAM-B-149Z-UN7-462
• Product type: complete phone mount kit
• Ball size: B size (1" diameter rubber ball)
• Device fit: X-Grip® holder for phones about 1.875" to 3.25" wide and up to 0.875" thick (RAM’s published range; measure with your case on)
• Base: U-bolt handlebar rail base for bars roughly 0.5" to 1.25" in diameter
• Warranty: RAM limited lifetime warranty on the mount and components (devices are not covered)
• Origin: listed as Made in the USA

How the RAM Ball-and-Socket System Works

Every RAM mount is built from three interchangeable parts: a base that attaches to your vehicle, a double socket arm, and a holder or accessory for your device. Each base and holder ends in a rubber ball, and the arm’s sockets clamp around those balls when you turn the center knob. The rubber gives the joint grip, lets you set almost any angle, and helps soak up shock and vibration.

Parts only connect within the same ball size, so it pays to know the system:

• A size: 0.75" ball for lightweight devices
• B size: 1" ball, the most popular size for phones, GPS units, cameras and cup holders
• C size: 1.5" ball for tablets and heavier equipment
• D size: 2.25" ball for laptops and heavy-duty loads

This part uses the B-size 1" ball, so it works with all RAM B-size bases, arms and holders.

Materials and Build Quality

RAM builds its mounts from high-strength composite, powder-coated marine-grade aluminum and stainless steel hardware, depending on the part. Composite parts (usually marked with a RAP prefix) are light, strong and rust-proof. Aluminum parts are powder-coated to resist corrosion. Stainless hardware won’t rust in rain, mud, road salt or salt spray, so the mount keeps working season after season.

Fitment and Compatibility

The RAM® X Grip® Mount Kit Vibe Safe™ U Bolt Medium is a universal-fit RAM part. It isn’t tied to a model year. Fit depends on the mounting point, such as bar or tube diameter, reservoir screw spacing, thread size or surface type, and for holders on the size of your device.

• ATVs, UTVs and side-by-sides
• Boats, trucks, tractors, mowers and equipment wherever the base can attach

Model years: all years, provided the mounting point matches the specifications above. Not sure of your bar size? Use our Roll Cage / Handlebar Measurement Guide before you order.

Installation

1. Clean the mounting area and confirm the base fits your bar, reservoir, stem or rail.
2. Fit the base and tighten the hardware evenly; do not over-tighten on painted or chromed parts.
3. Slide one end of the double socket arm over the base ball and the other over the holder ball.
4. Position the device, then tighten the arm knob by hand until the joints lock.
5. Install your phone, attach the tether if included, and check that controls, gauges and mirrors are not blocked.

Most installs take under 15 minutes with basic hand tools. Recheck knob tension and fasteners after your first ride.

Where the RAM® X Grip® Mount Kit Vibe Safe™ U Bolt Medium Works Best

• Trail maps and GPS tracks on ATV and UTV rides
• Ride-tracking, comms and camera apps on group trail days
• Work use on farm, ranch and job-site machines

Protecting Your Phone From Vibration

High-amplitude vibration, especially from powerful motorcycle engines, can damage the optical image stabilization and autofocus systems in some smartphone cameras. Apple publishes guidance warning iPhone owners about this. To reduce the risk, keep arms short, use rubber-ball joints like RAM’s, and consider adding a RAM Vibe-Safe™ dampener. RAM notes that reducing vibration does not guarantee full protection, so use your judgment on very high-vibration machines.

Care and Maintenance

• Clean with mild soap and water. Avoid harsh solvents that can dry out the rubber balls.
• Check knob tension and base fasteners periodically, especially on off-road machines.
• Replace worn X-Grip post caps or tethers to keep full grip.
• Inspect rubber balls for cracking after long sun exposure, and replace the part if needed.

Complete Your RAM Setup

Build out or upgrade your mount with these compatible RAM parts:

• RAM® Vibe Safe Adapter (RAP-462NPT)
• RAM® Pin-Lock Security Knob (RAP-S-KNOB3)
• RAM® Level Cup Xl (RAM-B-174A-417U)
• RAM® QI2 15W Wireless Charger (RAM-GDS-CHARGE-W2M)

Browse the full range in our RAM Phone and Device Mounts collection.

Helpful Guides From the Witchdoctors Blog

• The Ultimate UTV & ATV GPS Systems Buyer’s Guide
• Ultimate Guide on How to Protect UTV & ATV Electronics from Water Damage
• The Mechanic's Handbook: A Guide to Popular Fasteners and Tools Used on Motorcycles and UTVs

Frequently Asked Questions

Do I need to buy anything else?

No. A complete kit includes the holder, arm and base. Optional add-ons such as a Vibe-Safe dampener, replacement post caps or a security knob are available separately.

Can I move the kit between vehicles?

Yes. Buy a second base for your other bike, ATV or UTV and move the arm and holder between them in seconds.

Is it waterproof?

RAM mounts are built for all-weather use and the hardware resists corrosion. Unless a holder is specifically rated waterproof, your device still needs its own protection from rain and dust.

Will it damage my handlebars or paint?

Rubber-padded contact points and correct hardware torque prevent damage. Do not over-tighten clamps on chrome or painted parts.

What warranty does RAM offer?

RAM Mounts backs its mounts and components with a limited lifetime warranty. Mounted devices are not covered.

Is the RAM® X Grip® Mount Kit Vibe Safe™ U Bolt Medium compatible with my other RAM parts?

Yes. It uses RAM’s 1" B-size ball, so it works with any RAM B-size arm, base or holder.

Where to Ride

Put your new RAM mount to work on one of these rides:

• Windrock Park (Oliver Springs, Tennessee): 300+ miles of mountain trails
• Byrd's Adventure Center (Ozark, Arkansas): about 30 miles of marked loop trails

Order Your RAM® X Grip® Mount Kit Vibe Safe™ U Bolt Medium Today

Stop juggling your phone and gear and mount it the way the pros do. Add the RAM® X Grip® Mount Kit Vibe Safe™ U Bolt Medium (RAM-B-149Z-UN7-462) to your cart today. Witchdoctors ships genuine RAM Mounts parts fast, and our team of riders is ready to help you build the right setup. Questions about fitment? Contact us and we’ll help you choose.

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