Description
The RAM® U-Bolt Rail Base adds a C Size 1.5" Ball mounting point to compatible round rails and handlebars measuring .5" to 1.25" in diameter. Two included U-bolts and a composite spacer allow the base to accommodate different rail sizes without drilling.
The ball is positioned at a right angle to the rail and connects to compatible RAM C Size double socket arms for adjustable equipment placement.
Key Features
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RAM C Size 1.5" ball connection
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Fits round rails and handlebars from .5" to 1.25" in diameter
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Includes two U-bolt sizes for broader rail compatibility
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Composite spacer supports installation on smaller-diameter rails
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Rubber caps cover the exposed U-bolt ends
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Ball is positioned at a right angle to the mounting rail
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Powder-coated marine-grade aluminum construction
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Supports up to 4 lbs during standard use and 3 lbs during heavy-duty use
Use Cases & Compatibility
This U-bolt rail base is designed for compatible handlebars, tubing, and round rails on motorcycles, ATVs, side-by-sides, and similar applications. It is compatible with a variety of RAM C Size 1.5" socket arms and mounting components.
Specifications
Ball Size: C Size 1.5" Ball
Clamp Range: .5"–1.25" diameter
Material: Powder-coated marine-grade aluminum
Weight Capacity: Standard Use: 4 lbs; Heavy-Duty Use: 3 lbs
Product Weight: 0.33 lb
What’s Included
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(1) 1/4"-20 U-bolt for .5"–1" rails
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(1) 1/4"-20 U-bolt for 1"–1.25" rails
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(2) 1/4"-20 Nylock nuts
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(2) rubber caps
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(1) U-bolt spacer
Brand & Warranty
Brand: RAM Mounts
Manufacturer Part Number: RAM-231ZU
Warranty: Manufacturer’s lifetime warranty.
Gadget Mounts is an Authorized RAM Mounts Dealer.

