Description
The RAM Handlebar U-Bolt Base with B Size 1" Ball is a rugged mounting base designed to attach to handlebars and round rails from 0.5" to 1" in diameter. It provides a secure RAM B Size ball connection point for building a custom mounting setup.
This base is commonly used on motorcycles, bicycles, ATVs, UTVs, boats, carts, and equipment rails where a strong clamp-style mounting point is needed without drilling into the surface.
Key Features
- Handlebar and rail U-bolt base with RAM B Size 1" rubber ball
- Fits round rails and handlebars from 0.5" to 1" in diameter
- Compatible with RAM B Size socket arms and other 1" ball mounting components
- Includes U-bolt spacer, Nylock nuts, and rubber caps for exposed U-bolt ends
- Powder-coated marine-grade aluminum base with zinc-coated metal U-bolt hardware
- Manufacturer-rated weight capacity: 2 lbs standard use, 1 lb heavy-duty use
Use Cases & Compatibility
This RAM U-bolt base is commonly used for mounting phones, GPS units, cameras, small tablets, marine electronics, and other compatible devices on handlebars or round rails. It is a popular base for motorcycles, bikes, powersports vehicles, boats, utility carts, and equipment installations.
The integrated B Size 1" ball works with RAM B Size socket arms, holders, cradles, and adapter components. This is a base component only and requires a compatible socket arm and device holder or adapter to complete a mounting system.
Specifications
Ball Size: B Size 1" Ball
Material: Marine-grade aluminum
Color: Black
Clamp Range: 0.5" - 1" diameter
Weight Capacity: Standard Use: 2 lbs; Heavy-Duty Use: 1 lb
Included Hardware: (1) 1/4"-20 U-bolt for 0.5" - 1" rails, (2) 1/4"-20 Nylock nuts, (2) rubber caps, (1) U-bolt spacer
Product Weight: 0.22 lb
Additional Details: U-bolt base is designed to sit at right angles to the mounting rail; rubber caps help cover exposed U-bolt ends
What’s Included
- RAM Handlebar U-Bolt Base with B Size 1" ball
- (1) 1/4"-20 U-bolt for 0.5" - 1" rails
- (2) 1/4"-20 Nylock nuts
- (2) Rubber caps
- (1) U-bolt spacer
Brand & Warranty
Brand: RAM Mounts
Manufacturer Part Number: RAM-B-231U
Warranty: Manufacturer's lifetime warranty
Gadget Mounts is an Authorized RAM Mounts Dealer.

