Description
The RAM-B-309-2U is a motorcycle brake or clutch reservoir base designed to mount directly to the handlebar control clamp on the left or right side of many motorcycles. It includes two B Size 1" mounting balls, giving riders an additional RAM® ball connection point for mounting compatible device holders, arms, and accessories.
This base is a practical choice when handlebar space is limited or when a cleaner, bolt-on mounting location is preferred. The center ball between the hole centers is removable, allowing the mount to be configured based on the rider’s setup and available space.
Key Features
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Mounts to many motorcycle brake or clutch reservoir/control clamp locations
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Includes two B Size 1" RAM® mounting balls
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Add-on ball design provides an additional mounting point for RAM components
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Removable ball between the hole centers allows flexible configuration
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Compatible with RAM® B Size double socket arms
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Includes stainless steel and assembly hardware for installation
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Fits hole spacing from 0.94" minimum to 1.58" maximum
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Made from marine-grade aluminum for durability
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Standard use weight capacity of 2 lbs and heavy-duty use capacity of 1 lb
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Backed by the manufacturer's lifetime warranty
Use Cases & Compatibility
The RAM-B-309-2U is designed for motorcycles with compatible brake or clutch reservoir clamp spacing. It is commonly used to create one or two B Size 1" RAM mounting points for phone holders, GPS mounts, action camera mounts, small device cradles, or other lightweight RAM-compatible accessories.
To confirm fitment, compare the hole spacing on your motorcycle’s clutch or brake reservoir clamp with the base. The mounting holes support a minimum center-to-center width of 0.94" and a maximum width of 1.58".
Specifications
Ball Size: B Size 1" Ball
Material: Marine-grade aluminum
Color: Black
Hole Spacing: Reservoir clamp hole spacing from 0.94" to 1.58" center to center
Weight Capacity: Standard Use: 2 lbs; Heavy-Duty Use: 1 lb
Included Hardware: Assembly hardware included
Product Weight: 0.35 lb
Additional Details: Mounts to left or right side motorcycle clutch/brake clamp; center ball is removable
What’s Included
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RAM motorcycle brake/clutch reservoir base with two B Size 1" balls
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Assembly hardware
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Two M6 x 55mm hex bolts
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Two 1/4"-20 x 2" hex bolts
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Two 1/4"-20 x 2.5" hex bolts
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Two 1/2" spacers
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Two 1/4" split lock washers
Brand & Warranty
Brand: RAM Mounts
Manufacturer Part Number: RAM-B-309-2U
Warranty: Manufacturer's lifetime warranty
Gadget Mounts is an Authorized RAM Mounts Dealer.

