RAM Suction Cup Base - with Diamond Base and Short Arm - (Composite) 1" Ball

RAP-B-166U-A RAM® Composite Twist-Lock™ Suction Cup – Diamond Base, Short Arm

The RAP-B-166U-A pairs an 83.8mm (3.3") Twist-Lock™ suction cup base with a short double socket arm and diamond base plate, built entirely from high-strength composite for a lightweight, no-drill mount.

Key Features

• Twist-Lock™ suction cup ideal for vehicle windscreens and other non-porous surfaces
• Short (60mm) B Size double socket arm with 1" rubber balls at each end for near-infinite adjustability
• Diamond base plate connects to most RAM® cradles
• High-strength composite construction throughout for reduced weight
• No drilling required for installation
• Backed by RAM®'s lifetime warranty on the base hardware; the suction cup itself is treated as a wear item and sits outside that cover

What's Included

• RAP-B-224-1U Twist-Lock™ suction cup base with 1" ball
• RAP-B-201U-A short composite double socket arm
• RAP-B-238U diamond base with 1" ball

Dimensions & Specifications

• Suction cup diameter: 83.8mm (3.3")
• Overall length: 137mm (5.39")
• 2-Hole AMPS: 1.912" (48.6mm)
• Diamond plate size: 61.7mm x 33.3mm (2.43" x 1.31")
• Ball size: B Size (1" rubber)
• Material: High-strength composite
• Weight: 195 grams (0.43 lbs)
• Weight capacity: 907 grams (2 lbs) standard use, 454 grams (1 lb) heavy-duty use

Care & Warranty

• Smooth, non-porous surfaces only — anything rough or textured lets air past the seal and the cup will not hold.
• Clean the surface thoroughly before you apply the cup.
• If the vehicle is left sitting in extreme heat or cold, release the cup and stow it rather than leaving it loaded.
• RAM® classes suction cups as a general wear item, so the cup is excluded from warranty cover. The base, arm and plate hardware are covered as normal.

Videos

· RAM short double socket arm overview

FAQs

How does the composite version compare to the aluminium one?
The RAP-B-166U-A uses a composite arm and diamond plate in place of the aluminium parts on the RAM-B-166U-A. It's noticeably lighter and better suited to marine and salt-air use, while the aluminium version is the tougher choice for heavy vibration or knocks.

Is the suction cup covered by the warranty?
No. RAM® treat suction cups as a general wear item, so the cup sits outside the lifetime warranty. The rest of the mount hardware is covered as normal.

What surfaces will the cup stick to?
Glass and smooth, non-porous surfaces. Textured dashboards will not hold — fit a RAM® adhesive disk to the dash first and stick the cup to that.

How fast does it ship?
If this item shows as being in stock then it will usually ship from our Auckland warehouse in 1 business day. If it says to enquire then please get in touch as we may be able to get this back in for you.