RAM® Universal Ball Mount V Clamp Base 1" 2" (RAM-B-108B) by RAM Mounts

Seattle-based RAM Mounts has spent decades building mounts that survive vibration, weather and abuse. The RAM® Universal Ball Mount V Clamp Base 1" 2" (RAM-B-108B) carries that reputation forward: it is a bar-clamping base with a 1" B-size ball, sized to specific tube diameters for a secure, low-profile mount, designed for ATV and UTV drivers who need their equipment secure and within reach.

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® Universal Ball Mount V Clamp Base 1" 2"

Rail and handlebar bases clamp around a tube with a U-bolt, strap or torque-style clamp. They are the most common foundation for a phone or GPS mount on handlebars, mirror stems, roll cages and racks, and they keep the mount compact and close to the bar.

Key Features and Benefits

• Clamps to handlebars, roll bars and rails within the listed diameter range
• 1" B-size rubber ball for RAM arms and holders
• Low-profile design keeps the device close to the bar
• Corrosion-resistant hardware for all-weather use
• Foundation for any RAM B-size phone, GPS, camera or cup holder

Specifications

• Brand: RAM Mounts
• Part number: RAM-B-108B
• Product type: handlebar / rail base
• Ball size: B size (1" diameter rubber ball)
• Warranty: RAM limited lifetime warranty on the mount and components (devices are not covered)
• Origin: listed as Made in the USA

From the Manufacturer

• Marine-grade aluminum with a black powder-coat finish, 1" rubber ball, Mirror post base fits any open mirror mount hole on motorcycles with relocated mirrors, Mounting hardware included

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® Universal Ball Mount V Clamp Base 1" 2" 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. Measure your bar or rail diameter and confirm it falls within this base’s range.
2. Position the base where it will not interfere with controls, cables or the steering sweep.
3. Tighten the clamp hardware evenly.
4. Attach a RAM double socket arm and holder.

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

Where the RAM® Universal Ball Mount V Clamp Base 1" 2" 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® Double Socket Arm Short 2" for 1" Ball Base (RAM-B-201-A)
• RAM® Phone Holder Quick Grip™ Ball (RAM-HOL-PD3-238A)
• RAM® Self-Leveling Cup Drink Holder with 1 inch Ball and Cozy (RAM-B-132BU)
• RAM® Vibe Safe Adapter (RAP-462NPT)

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

Helpful Guides From the Witchdoctors Blog

• How to Inspect ATV Handlebar Safety: Steer with Confidence
• The Ultimate UTV & ATV GPS Systems Buyer’s Guide
• The Mechanic's Handbook: A Guide to Popular Fasteners and Tools Used on Motorcycles and UTVs

Frequently Asked Questions

How do I measure my handlebar?

Measure the outside diameter of the bar where the base will sit. Many cruiser bars are 1" or 1-1/4"; many off-road bars taper. See our handlebar measuring guide linked below.

Will it fit tapered or fat bars?

Only if the diameter at the mounting point is within the listed range.

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® Universal Ball Mount V Clamp Base 1" 2" 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:

• Paiute ATV Trail (central Utah): 250 miles of marked trail linking to 2,000+ more
• Windrock Park (Oliver Springs, Tennessee): 300+ miles of mountain trails

Order Your RAM® Universal Ball Mount V Clamp Base 1" 2" Today

Stop juggling your phone and gear and mount it the way the pros do. Add the RAM® Universal Ball Mount V Clamp Base 1" 2" (RAM-B-108B) 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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Returns

If your order arrives and it is not right, we will we'll fix it. We promise!

Doesn't fit or just not happy with it? You can return any new, unopened, unused or unaltered item within 30 days of delivery receipt of your item. We will issue a refund to your original payment method.

See our full Return Policy for all of the pertinent details.