FAQ & Support

Find answers to common questions about RAM® Mounts systems, compatibility, and specifications.

I have an existing system – what do I need?

Arms

• Shorter arm (1”): RAM-B-201U-A
• Longer arm (1”): RAM-B-201U-C
• Standard arm (1”): RAM-B-201U
• Shorter arm (1.5”): RAM-201U-B
• Longer arm (1.5”): RAM-201U-D
• Standard arm (1.5”): RAM-201U
• Shorter arm (2.25”): RAM-D-201U-C
• Standard arm (2.25”): RAM-D-201U

Bases

• Flat surface (1”): RAM-B-202U
• Handlebar / rail (1”): RAM-B-231ZU
• Glass surface (1”): RAM-B-224-1U
• Aircraft yoke (1”): RAM-B-121BU
• Flat surface (1.5”): RAM-202U
• Handlebar / rail (1.5”): RAM-231U
• Glass surface (1.5”): RAP-365-224-1U
• Flat surface (2.25”): RAM-D-202U
• Alternative flat base (2.25”): RAM-D-254U
• Rail (2.25”): RAM-D-271U-12

The item I want is listed as “Order item”

On our website, we only show available stock. In some cases, individual components may be available instead of pre-assembled kits, or vice versa. If you need help finding the correct configuration, please contact us.

Support Video

Ball Sizes

Arm Lengths

Weight Capacity

B size (1" / 2.54 cm) – up to 0.9 kg (2 lbs)
C size (1.5" / 3.81 cm) – up to 1.8 kg (4 lbs)
D size (2.25" / 5.71 cm) – up to 2.7 kg (6 lbs)
E size (3.38" / 8.58 cm) – up to 6.8 kg (15 lbs)

What weights are recommended for the different ball sizes?

A size: 0.56" / 14 mm – up to 0.25 kg (0.5 lbs)

B size: 1" / 25 mm – up to 1 kg (2 lbs), 0.5 kg in heavy-duty applications
Up to 2.3 kg (5 lbs) in low vibration environments

C size: 1.5" / 38 mm – up to 2 kg (4 lbs), 1.5 kg heavy-duty
Up to 4.5 kg (10 lbs) in low vibration environments

D size: 2.25" / 57 mm – up to 3 kg (6 lbs), 2.3 kg heavy-duty
Up to 6.8 kg (15 lbs) in low vibration environments

E size: 3.38" / 86 mm – up to 7 kg (15 lbs), 4.5 kg heavy-duty
Up to 13.6 kg (30 lbs) in low vibration environments

Important: These values are guidelines. Mounting angle, vibration, and environment will affect performance. Always test your setup.

Examples:
Marine: use lower limits on fast boats, higher on stable vessels.
Forklifts: use lower limits due to shocks and vibration.
Motorcycles: stay at or below lower limits, especially for cameras.

Cosmetic Imperfections

Due to the manufacturing and molding process used for RAM® Mounts components, minor cosmetic imperfections may occasionally appear on certain parts of a product.

The most common area is the aluminum neck directly beneath the rubber ball, where small marks, exposed aluminum, or minor coating imperfections can occur as part of the molding and clamping process during production.

These cosmetic variations are considered normal manufacturing characteristics and do not affect the product’s functionality, strength, durability, or overall performance.

Product Marking

Manufacturer

National Products Inc.
Seattle, USA

E-mail: support@rammount.com
Phone: 1-800-497-7479

Tests & Certifications

View certifications on manufacturer’s website