Ram Mount 1" B Ball Twist-Lock Suction Cup Base
Best suction mount for securing devices to glass and smooth surfaces.
Secure your devices with the Ram Mount 1" B Ball Twist-Lock Suction Cup Base. This robust mounting solution features a powerful twist-lock mechanism for a reliable hold on smooth, non-porous surfaces. It includes a 3.3-inch diameter suction cup and the standard 1-inch B size rubber ball, ensuring broad compatibility with RAM Mount accessories. Designed for universal applications, it offers exceptional grip, especially on glass and non-porous plastics, making it an ideal foundation for custom mounting setups.
$24.49
Owner Satisfaction
4.7
/ 5
Category Rank
43
/ 351
#43 in GPS Mounts
Price vs Category Average
-51%
Below average
Ball Size
1
/ B Size " Rubber Ball
Who it's for
- Off-roaders needing reliable stability on bumpy terrain
- Modular users building a custom device mounting ecosystem
- Commuters requiring quick setup for rental or shared vehicles
Who should skip it
- Drivers with textured dashboards or porous mounting surfaces
- Adventurers traveling through extreme climates or high altitudes
- Safety-conscious motorists sensitive to windshield blind spots
Performance breakdown
Suction Strength
The twist-lock mechanism creates a vacuum seal that rarely budges.
Surface Versatility
Requires perfectly smooth, non-porous surfaces to maintain a reliable hold.
Ecosystem Compatibility
The standard B-size ball integrates seamlessly with the entire RAM lineup.
Build Durability
Rugged construction stands up to heavy daily use and vibration.
Installation Ease
Simple twist-to-lock action makes mounting and repositioning quick and intuitive.
Vibration Dampening
Rubber ball design effectively absorbs road shock for steady device viewing.
Key Specs
Ball Size
B Size 1" Rubber Ball
Suction Cup Diameter
3.3 inches
Mount Type
Suction Cup Base
Attachment Method
Twist Lock
Ball Joint Size
1.0 inches
Recommended Surface Type
glass or non-porous plastic surface
Features
- Powerful twist-lock suction for secure mounting
- Includes standard 1" B size rubber ball
- 3.3" diameter suction cup base
- Provides an extra strong, secure hold
- Designed for universal fit applications
- Best performance on glass surfaces
- Connects to RAM-B-238U diamond base
What customers say
Users consistently praise the Ram Mount Twist-Lock Suction Cup Base for its exceptional security and reliability in temporary mounting applications. The defining feature, the twist-lock mechanism, creates a very strong vacuum seal, especially on smooth surfaces like windshields. Reviewers confirm this mount holds firm even through high vibration from off-roading or boating, making it a trusted choice for securing expensive electronics like GPS units and tablets. While the quality and durability are highly regarded, some users note that achieving a reliable seal on textured or slightly curved surfaces can be challenging. Despite the premium price, the overwhelming consensus is that this base offers superior strength and performance, proving to be a worthwhile investment for demanding users.
Know before you buy
This mount is designed specifically for smooth, non-porous surfaces like glass or polished plastics. It will not maintain a secure seal on textured dashboards, fabric, or porous materials.
Yes, it features the industry-standard 1-inch B size rubber ball. This allows it to integrate seamlessly with any RAM Mount arm or device holder that uses the same B-size ball system.
Clean both the mounting surface and the suction cup with a mild cleaner or alcohol wipe to remove dust and oils before applying. Once positioned, engage the twist-lock mechanism to create a vacuum seal.
The 3.3-inch suction cup provides a strong hold, but its capacity depends on the length of the arm and the weight of your device. It is ideal for smartphones, small GPS units, and lightweight tablets, provided the arm length is kept relatively short to minimize leverage.
While the twist-lock mechanism is highly reliable, suction cups can lose their seal over extended periods due to temperature fluctuations or debris buildup. It is good practice to occasionally release, clean, and re-apply the mount to maintain maximum suction strength.
Still have a question?
Ask Hayley anything about this product before you decide.