The RAM Mounts Flex Adhesive Ball Base (RAP-B-378U) is a flexible mounting solution featuring a 1-inch diameter rubber ball on a vibration-dampening flex arm with an adhesive base. Unlike rigid mounts, the flex arm absorbs road vibration while the adhesive backing allows semi-permanent installation without drilling into your motorcycle or vehicle.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | RAM Mounts |
| Model | RAP-B-378U |
| Ball Size | 1-inch diameter |
| Mounting Type | Adhesive base |
| Arm Type | Flexible vibration-dampening |
| Material | Rubber ball, composite flex arm |
| Compatible Systems | All RAM 1-inch ball mounts |
| Installation | No drilling required |
| SKU | RAP-B-378U |
Key Features
Vibration-Dampening Flex Arm: The flexible arm absorbs road vibration and shock, keeping your mounted device stable even on rough Indian roads and preventing screen blur on cameras or GPS units.
Strong Adhesive Base: Industrial-grade adhesive backing creates a secure semi-permanent bond to smooth surfaces without requiring drilling or permanent modification to your motorcycle or dashboard.
Universal RAM Compatibility: The standard 1-inch rubber ball integrates seamlessly with the entire RAM mounting ecosystem, allowing you to swap holders for phones, GPS units, action cameras, or other devices.
No-Drill Installation: Clean the surface, peel, and stick – the adhesive mount installs in minutes without tools, making it ideal for riders who want mounting solutions without permanent vehicle modifications.
Use Case Scenarios
- Dashboard or tank-mounted smartphone navigation on touring motorcycles where the flex arm prevents vibration from affecting GPS accuracy or triggering emergency crash detection
- Action camera mounting on fairings or bodywork for ride footage where the flexible base dampens high-frequency vibration that would otherwise create jello effect in videos
- Secondary GPS or device mounting on adventure bikes where adhesive installation avoids drilling into plastic panels or sensitive electronics housings
Why Choose the RAP-B-378U?
- RAM Mounts’ proprietary rubber ball-and-socket system provides infinite adjustability and secure hold tested across millions of mounts worldwide
- The flex arm specifically addresses motorcycle vibration – a critical feature absent from rigid adhesive mounts that can cause device damage or screen readability issues
- Adhesive installation preserves vehicle warranty and resale value by avoiding permanent mounting holes in bodywork or dashboards
- Works as foundation for entire RAM ecosystem – add phone holders, camera mounts, or GoPro adapters to the same base as your needs change
Pros & Considerations
Pros:
- Flex arm significantly reduces vibration transmission compared to rigid adhesive mounts, protecting device cameras and extending mount lifespan
- No drilling required makes installation reversible and ideal for leased vehicles or riders who frequently change motorcycles
- Compatible with hundreds of RAM mount accessories including X-Grip phone holders, GoPro adapters, and Garmin GPS cradles
Considerations:
- Adhesive bond strength depends on proper surface preparation – textured, curved, or porous surfaces may not provide adequate adhesion for heavy devices
- Adhesive mounting is semi-permanent and difficult to reposition once applied – test fitment carefully before final installation
Frequently Asked Questions
Q: What surfaces can the RAP-B-378U adhesive base stick to?
A: The adhesive works best on smooth, non-porous surfaces like painted metal, plastic fairings, gloss-finished dashboards, or windscreens. Clean the surface with isopropyl alcohol before application. Textured surfaces, rubber, or low-energy plastics like polyethylene may not provide sufficient bond strength for secure mounting.
Q: How much weight can the flex adhesive base support?
A: When properly installed on a clean, smooth surface, the adhesive base can support devices up to 500 grams including the weight of the RAM mount holder. Heavier devices like tablets require RAM’s heavier-duty adhesive bases or bolt-mount systems.
Q: Can I remove and reuse the adhesive mount?
A: The adhesive is designed for semi-permanent installation. You can remove it by carefully heating with a hairdryer to soften the adhesive, then peeling slowly. However, the adhesive backing cannot be reused – you’ll need a new mount for reinstallation. Removal typically does not damage painted surfaces if done carefully.
Q: Is the RAP-B-378U compatible with non-RAM mount accessories?
A: No, the 1-inch ball is proprietary to RAM’s mounting system. You need RAM-compatible holders and arms. However, RAM makes adapters for GoPro mounts, AMPS patterns, and other standards, giving you access to third-party accessories through RAM adapters.
Q: How flexible is the arm – will it stay in position during riding?
A: The flex arm is designed for vibration dampening, not articulation. It’s stiff enough to hold position during normal riding but flexes to absorb vibration and shock. For angle adjustment, use the ball-and-socket joint – once tightened, it holds position firmly even on rough roads. The flex arm prevents vibration, not intentional repositioning.
Shop the RAM Mounts Flex Adhesive Ball Base at Custom Elements with fast shipping across India. Complete your riding setup:
- Browse all mounting solutions and RAM accessories
- Shop Bluetooth communication systems for navigation integration
- Explore action cameras to pair with your new mount
The RAM Mounts Flex Adhesive Ball Base delivers vibration-free device mounting without permanent vehicle modifications, giving riders the flexibility to add navigation, cameras, or communication devices to any smooth surface on their motorcycle.

























































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