RAM® Handlebar U-Bolt Double Ball Mount for Garmin nuvi 1690
Ball Base Information
"RAM" Prefix Code
To provide lightweight strength and corrosion resistance, RAM is made of marine grade Aluminium with a black powder coated finish, stainless steel hardware and 'rubber balls' - 'RAM' products are stiffer and stronger than their 'RAP' variants and typically used in more rugged applications.
"RAP" Prefix Code
Many of our 'RAM' products are available in a 'RAP' - composite variant. Our composite 'RAP' products are generally designed for lighter duty applications where keeping the weight of the mount low is a priority.
RAM® BALL SIZES
The weight limits below are a guide only. All factors in a planned mounting configuration should be considered to choose the most suitable ball size.
The most common ball size applications:
B Size - Action Cameras, Phones and Small Tablets
C Size - Medium - Large Tablets in Heavier Duty Applications
D Size - Heavy and Rugged Tablets and Laptops in Commercial Applications
Please check with our technical team for advice.
![A chart of ball sizes](http://www.ram-mount.co.uk/cdn/shop/files/ball-arm-spec.jpg?v=1720434415&width=1200)
![](http://www.ram-mount.co.uk/cdn/shop/files/ball-arm-spec-vertical.jpg?v=1720613989&width=600)
Currently out of stock, maximum wait time will be 6 weeks.
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This motorcycle mount makes attaching to handlebars, tubing, or railing a breeze. Simple to install and easy to use, the possibilities become endless. The zinc coated metal u-bolt and nuts included are designed it fit motorcycle handlebars, or circular rail that are 0.50" to 1.25" in diameter. Rubber ball and socket technology allows for almost infinite adjustment and perfect viewing angles. High quality materials insure your GPS is safe, secure, and within easy reach. RAM’s patented design also dampens shock and vibration helping to extend the life of your mobile device.
hardware included
Assembly Hardware
(1) 1/4"-20 U-Bolt for .5" - 1" Rails
(1) 1/4"-20 U-Bolt for 1" - 1.25" Rails
(2) 1/4"-20 Nylock Nuts
(2) Rubber Caps
(1) U-Bolt Spacer
clamp range
.5" - 1.25" diameter
socket to socket length
3"
ball size
B Size (1")
weight capacity
Standard Use: 2 lbs
Heavy-Duty Use: 1 lb
materials
Marine-grade aluminium
High strength composite
packaging type
Poly Bag
Weight
0.31 kg