RAM® RAM-B-231Z-2U Rail & Bar Base – B Size

The RAM-B-231Z-2U is designed for a clean, secure, and versatile installation on UTVs and ATVs. Engineered to suit most common rail and bar sizes, this compact base features a concealed strap clamp that eliminates exposed sharp edges while helping prevent loosening in rough conditions.

The kit includes both a strap clamp and a zinc-coated metal U-bolt, allowing you to choose the best mounting method for your setup or relocate the mount to another position if needed. Protective black caps neatly cover the exposed ends of the U-bolt for a tidy, finished appearance.

Equipped with a 25 mm (B size) RAM® rubber ball, the base connects seamlessly to any B size RAM® double socket arm. The proven ball-and-socket design provides near-infinite adjustability, making it easy to position your device exactly where you want it.

Manufactured from powder-coated, marine-grade aluminium and high-strength composite materials, the RAM-B-231Z-2U is built to handle demanding off-road and outdoor environments. As with all genuine RAM® components, it is backed by a lifetime warranty.

Key Features

• Clean, low-profile rail and bar mounting solution for UTVs and ATVs
• Concealed strap clamp for a safer, neater installation
• Includes both strap clamp and U-bolt mounting options
• B size (25 mm / 1") RAM® rubber ball
• Near-infinite adjustability when paired with a RAM® double socket arm

Included Hardware

• (1) Strap clamp adapter
• (2) 1/4"-20 x 1" machine screws
• (2) 1/4"-20 Nylock nuts
• (1) Zinc worm-drive strap clamp
• (1) 6" rubber strip
• (1) 1/4"-20 U-bolt for 12.7 mm – 25 mm rails
• (1) 1/4"-20 U-bolt for 25 mm – 32 mm rails
• (2) Rubber caps
• (1) U-bolt spacer

Clamp Range

• U-bolt: 12.7 mm – 32 mm diameter
• Strap clamp: approx. 40 mm – 80 mm diameter

Specifications

• Ball size: B Size (25 mm / 1")

Load Rating

• Standard use: up to approx. 0.9 kg
• Heavy-duty use: up to approx. 0.45 kg

Materials & Additional Information

• Materials: Marine-grade aluminium, high-strength composite
• Packaging type: Poly bag
• Total weight: approx. 0.25 kg