RAM Round Plate with Ball

RAM® Round Plate Ball Base — Universal Fit, Solid Foundation

The RAM® round plate ball base is a clean, reliable mounting solution for riders who want maximum compatibility and rock-solid adjustability. Designed around the universal AMPS hole pattern, it bolts directly to a wide range of RAM® device holders, GPS cradles, and accessories.

A 2.5” aluminum round plate paired with a 1” B-size rubber ball gives you a vibration-damping base that works seamlessly with any RAM® double socket arm — allowing precise positioning and secure locking, even on rough terrain.

Built from powder-coated, marine-grade aluminum, it’s made to withstand vibration, weather, and hard miles without compromise.

Why It Works

• Universal AMPS hole pattern for broad device compatibility
• Integrated B-size (1”) RAM® rubber ball
• Near-infinite adjustability with RAM® double socket arms
• Vibration-damping design protects sensitive electronics
• Durable, low-profile mounting solution

Tech Specs

• Plate diameter: 2.5 in (63.5 mm)
• Hole patterns:
  • 4-hole AMPS: 1.181” × 1.496”
  • 3-hole, 120° pattern: 1.812” diameter
• Ball size: B size (1”)
• Weight capacity: 2 lb (0.9 kg)
• Material: Powder-coated, marine-grade aluminum
• Weight: 0.15 lb (68 g)