RAM® U-Bolt Ball Base for Rear View Mirrors

Name: RAM® U-Bolt Ball Base for Rear View Mirrors
Brand: RAM Mounts
SKU: RAM-B-231Z-RVMU
Price: 11.96 USD
Availability: InStock
Rating: 5.0 (5 reviews)

RAM® U-Bolt Ball Base for Rear View Mirrors - Main image

RAM® U-Bolt Ball Base for Rear View Mirrors - View 2

RAM® U-Bolt Ball Base for Rear View Mirrors - View 3

$11.96 ~~$18.99~~ In stock

Category: Components

The RAM-B-231Z-RVMU consists of a 1" rubber ball designed to sit at right angles to the mounting rail and zinc coated metal u-bolt. The base includes black cover caps to be placed over the exposed ends of the u-bolt. The included composite rail adapter can narrow the rail to a minimum width of 0.5". The mirror base will attach to all RAM 1" diameter ball compatible arms.

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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

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 (5.0 / 5 · 5 reviews)

Aurora ★★★★★ Oct 23, 2026

I was worried the rubber ball wouldn't hold my device steady, but it grips the mounting arm firmly with no wobble even on rough roads. The included black cover caps neatly hide the exposed bolt ends, giving it a clean, finished look.

Matthew ★★★★★ Oct 22, 2026

The zinc-coated U-bolt feels solidly built, and the black cover caps give it a clean, finished look. I mounted it on my rear view mirror in about five minutes with no issues.

Ava M. ★★★★★ Oct 21, 2026

The rubber ball sits perfectly at a right angle to the rail, which made positioning my device incredibly easy. The black cover caps are a thoughtful touch, keeping the exposed u-bolt ends neat and tidy. This base feels rock-solid once tightened.