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RAM® Half Rail Clamp Ball Base for 1"-1.25" Rails

RAM® Half Rail Clamp Ball Base for 1"-1.25" Rails - Main image
$31.44 $42.49 In stock

Category: Components

The RAM-220U is a half rail clamp base with a 1.5" rubber ball, designed to connect to rails from 1" to 1.25" in diameter. It is part of the RAM Mounts Components line and uses the C Size 1.5" ball system.

  • Half rail clamp base with 1.5" rubber ball
  • Fits rails from 1" to 1.25" in diameter
  • C Size 1.5" ball system, holds up to 4 lbs
  • SKU: RAM-220U
  • Brand: RAM Mounts
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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.8 / 5 · 5 reviews)

Carter E. ★★★★★

The rubber ball locks in tight with zero wobble once you tighten the knob, even on my aluminum railing. Took under five minutes to mount and it’s been rock solid through a week of rough water.

Lucy L. ★★★★★

I've got thick 1.25" bars on my boat and this ball base grabs them solidly, no wobble even in chop. The rubber ball is exactly the right size to pair with my existing C-size cradle, so swapping devices takes seconds. Exactly what I needed for a clean install without cutting into the rail.

Riley F. ★★★★★

The rubber ball swivels just enough to position my phone perfectly without loosening, even when the lake gets choppy. I've used it on both a 1" and a 1.25" rail, and the clamp grips both securely. Took about two minutes to install.

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