RAM MOUNTS X-Grip Large Phone Mount — Tough-Claw clamp base, heavy-duty rail mount, vibration-resistant

RAM MOUNTS X-Grip Large Phone Mount with Tough-Claw Clamp Base is a heavy-duty phone holder that secures large smartphones to rails, tubes, and irregular bars between 0.625" and 1.14" diameter.

This mount combines RAM's X-Grip spring-loaded cradle with a compact Tough-Claw clamp base to deliver a secure, low-profile solution for mounting phones on boats, ATVs, bikes, work vehicles, and custom rigs. Built from reinforced composite materials and stainless steel hardware, it resists vibration, moisture, and heavy use while keeping charging ports visible and accessible. The package includes optional tethering for extra security when riding over rough terrain.

How does the clamp attach to different rails and surfaces?

The Tough-Claw clamp is engineered to fasten quickly and securely to round, square, and oddly shaped rails as well as flat surfaces up to 1.14" thick. Molded rubber contact pads prevent slipping and protect the mounting surface from scratches, while the clamp's range fits many common handrails and tubing sizes.

• Rail/tube clamp diameter: 0.625" to 1.14"
• Flat surface clamp capacity: up to 1.14" thickness
• Rubber pads for grip and surface protection
• Tool-assisted tightening for a dependable hold

Will this hold my large phone securely without covering ports?

The X-Grip uses a spring-loaded 'X' frame with protective rubber caps that grip the phone at its corners, leaving the screen and ports exposed for charging, audio, or button access. The open design accommodates devices up to 4.5" wide and up to 0.875" deep, making it suitable for most modern large phones and many cases.

• Phone width range: 1.75" to 4.5"
• Maximum phone depth: 0.875"
• Corner grip design keeps ports visible and usable
• Optional tether included for extra retention during extreme use

Is the mount durable enough for outdoor and commercial use?

Yes — the assembly combines high-strength composite components with stainless steel fasteners to resist corrosion and fatigue in harsh conditions. RAM MOUNTS backs the product with a lifetime warranty, highlighting its design for long-term rugged deployment on boats, work trucks, and off-road vehicles.

• High-strength composite construction resists impacts
• Stainless steel hardware for corrosion resistance
• Designed to withstand vibration and road shock
• Lifetime warranty for peace of mind

How easy is it to install and adjust while out in the field?

Installation is straightforward: clamp the Tough-Claw onto the rail or surface, tighten the hardware, then attach the X-Grip cradle. Adjustments are made with common tools and the modular RAM ball-and-socket system allows quick angle and orientation changes for optimal viewing.

• Quick clamp attachment to rails and flat surfaces
• Modular design supports angle adjustments and repositioning
• Common hand tools required for final tightening
• Compact footprint keeps the phone close to the mount

Who is this for: This RAM MOUNTS X-Grip Large Phone Mount is ideal for outdoor enthusiasts, marine users, tradespeople, delivery drivers, and anyone who needs a dependable phone mount on irregular rails or flat surfaces. If you carry a large smartphone and need a corrosion-resistant, adjustable mount that keeps ports accessible and survives rough conditions, this unit was built for that purpose.