RAM-B-231ZU - U-Bolt Rail Base - B Series (1" Ball) - Zinc

RAM-B-231ZU – RAM® Zinc U-Bolt Rail Base with 1" Ball

The RAM-B-231ZU is a zinc-coated U-bolt rail base with a 1" RAM B-size rubber ball. It clamps round rails and handlebars from 12.7mm to 31.8mm (0.5" to 1.25"), which covers nearly every common motorcycle and bicycle bar, and gives you a RAM ball to build a mount from. It's the base that sits under many of our complete U-bolt mounts.

Key Features

• Zinc-coated steel U-bolt fits the great majority of motorcycle and bicycle bars
• 1" RAM B-size rubber ball sits at right angles to the rail
• Fits round rails 12.7mm to 31.8mm (0.5" to 1.25"); composite adapter narrows to 12.7mm (0.5")
• Includes both U-bolt sizes plus rubber end caps
• Powder-coated marine-grade aluminium body, RAM lifetime warranty

Works With

The 1" ball connects to any RAM B-size double socket arm or single-socket cradle. Want the stainless version for marine use? See the RAM-B-231U.

Dimensions & Specifications

• U-bolt clamping range: 12.7mm to 31.8mm (0.5" to 1.25")
• Ball size: 1" rubber ball, RAM B-size
• Material: powder-coated marine-grade aluminium
• Weight: 127g (0.28 lb)
• Load rating: up to 907g (2 lb) standard use; 454g (1 lb) for heavy-duty or high-vibration use

What's Included

• RAM-B-231ZU zinc-coated U-bolt rail base with 1" ball
• One 1/4"-20 U-bolt for 0.5"-1" rails and one for 1"-1.25" rails
• Two 1/4"-20 nylock nuts, two rubber caps, one U-bolt spacer

FAQs

Do I need an arm as well?
Usually yes. This is a base only. Add a RAM B-size double socket arm to connect it to your cradle, or fit a single-socket cradle straight onto the ball.

How fast does it ship?
If it's shown in stock here, it ships from our Auckland warehouse, normally within one business day. If it's shown as out of stock, get in touch and we may be able to get it in for you.

Videos

• RAM U-bolt base assembly overview