Your basket is Empty

April 03, 2020

What is AMPS 4 hole?

AMPS is a mounting standard adopted by the main stand alone motorcycle GPS Navigation Device Manufacturers that allows the compatibility of other manufacturers motorcycle GPS Devices with attachment hardware you might already own.


AMP 4 Hole mounting plate

AMP 4 hole mountng plate


AMPS 4 hole Compatible equipment:

  1. Garmin zumo motorcycle GPS cradles
  2. Garmin Montana Rugged Mount & Cable
  3. Garmin Montana Handlebar Mount
  4. Garmin InReach AMPS Powered Mount
  5. TomTom Rider motorcycle GPS cradles
  6. All RAM Mounts Device Specific Cradles

Likewise at Ultimateaddons we believe you shouldn’t have to spend more money than you already have to, should you already have existing attachment systems for Navigation equipment on your motorcycle. Many of our customers wish to upgrade their motorcycle GPS systems to a iPhone or Samsung Galaxy based package but are already happy with the mounting location of their existing standalone motorcycle GPS cradles. We have two styles available in our V1 and V2 models.

Ultimateaddons AMPS 4 Hole adapter


AMPS 4 hole adapter V1 Ultimateaddons waterproof motorcycle smartphone case

AMPS 4 Hole adapter V1


We listen carefully to our customers feedback so we have developed our own existing AMPS 4 hole mounting adapter that allows you to easily convert your existing GPS motorcycle attachment to carry an Ultimateaddons waterproof, dustproof and shockproof smartphone case for iPhone or Samsung Galaxy!


AMPS 4 hole adapter V2 Ultimateaddons waterproof motorcycle smartphone case


AMPS 4 Hole adapter V2



25mm to AMPS 4 hole layout adapter

25mm 1 inch ball to AMP 4 Ultimateaddons motorcycle smartphone case

25mm to AMPS 4 hole layout adapter


Already have a 25mm or 1 inch ball mounting attachment on your motorcycle? This adapter allows you to use your existing attachment system and converts the 25mm ball attachment AMPS 4 hole.


3 Prong Amps adapter plate for Tomtom Rider v5 40 400 450

Garmin AMP 4 hole adapter Ultimateaddons waterproof smartphone case

3 Prong AMPS adapter plate for Tomtom Rider v5 40 400 450



In the reverse instance should you purchase a bike with an Ultimateaddons waterproof, dustproof and shockproof smartphone attachment system we also have an AMPS 4 Hole plate that will attach directly to the AMPS 4 hole locations on the back of your Garmin or TomTom so you can make full use of our quick release 3 prong system as well as share duties with an Ultimateaddons Tough smartphone case.


If you are interested in our Waterproof, Dustproof and Shockproof motorcycle smartphone cases for both Samsung Galaxy and Apple iPhone please follow the links below to your specific smartphone model.

 Apple Samsung
iPhone 11 Pro Max Galaxy S10 / S10+
iPhone 11 Galaxy S9 / S9+
iPhone XR Galaxy S8 / S8+
iPhone XS Max Galaxy Note Series
iPhone XS / X Galaxy S7
iPhone 6 7 8


Leave a comment

Comments will be approved before showing up.

Also in News

Ultimateaddons Universal Tough Case
How to Choose the Perfect Size Ultimateaddons Universal Tough Case

April 07, 2022

Our Universal Tough Cases are perfect for anyone who often changes phone or is looking for a reliable, long lasting phone case for mounting to a motorcycle. This helpful how-to guide will help you pick the best size case for your phone to keep it protected while out riding. Make sure you find the perfect fit for your phone before ordering for best experience using our products.
Read More
Top Tips to Keep New Riders Safe on the Road
Top Tips to Keep New Riders Safe on the Road

January 17, 2022

Whether you’ve just passed your  CBT or you’ve been riding the roads for years, every biker will have their own variants of advice to keep you safe whilst out on your bike. Firstly it should go without saying that having the correct safety gear (helmet, jacket, gloves & boots) is an absolute must when heading out on two wheels.
Read More
Riding the NC500 in one day
Riding the NC500 in one day

October 27, 2021 1 Comment

We are lucky enough to live on the route of the NC500 and as a result we have ridden parts of the route many times. However, one thing that has eluded us is the mighty feat of completing the entire 500 mile route over the course of one day. It's a journey that takes you across the breadth of the Scottish Highlands through many of the most beautiful and windswept areas the UK has to offer. 
Read More