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RAM Mounts Stem Base
  • RAM Mounts Stem Base - Black
  • RAM Mounts Stem Base - Black
  • RAM Mounts Stem Base - Black
  • RAM Mounts Stem Base - Black

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RAM Mounts Stem Base With 1" Ball

The RAM-B-342 fork stem mount is one of the cleanest ways to mount small electronics on your motorcycle. Simply slide the assembly into the hole of the stem and tighten the machine screw to create a tight fit. This part is designed to fit into the cylindrical bore wall of fork stems and will work with stems that measure from 12 -20mm and 28mm or 0.5” – 1.10” at the following intervals:

Metric       Standard
12mm          0.5”
14mm          0.55”
16mm          0.63”
18mm          0.71”
20mm          0.79”
28mm          1.10”


  • Powder Coated Marine Grade Aluminum

Ball Size:

  • 1" Rubber Ball "B" Size


Product Style RevZilla Item # Manufacturer Product # Availability
Black 869159 RAM-B-342U In Stock: Ships within 24 hours


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If your order arrives and it is not right, we will we'll fix it, NO NONSENSE, we promise.

Doesn't fit or just not happy with it? You can return any new, unused and unaltered item within 30 business days of delivery receipt of your item. We will issue a full refund to your original payment method.

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RAM Mounts Stem Base 4.3 5 23 23
Does not fit correctly on my Street Triple Impossible to fit the product on a 2014 Triumph Street Triple unless you remove the handlebars first which isn't an option. Even tried a different approach to the install by pushing the plug from the bottom of the stem hole but that did not work either, it was always loose. Get the U-Bolt instead. May 19, 2016
Good IF If you are like me and didn't measure your fork stem opening first then this product didn't work, if you measure first the stem hole and make sure the thing will fit then this product will be great. I had to take the top part and shave it to make it fit my CBR1000RR stem opening because the hole was just barely smaller than the top part of the rubber part that is big. I feel like the way I shaved it, to make it fit it will work for me but it was my fault I didn't read the measurements. March 9, 2016
A must have! The install is pretty simple and the thing does exactly what it is supposed to do. I have mine paired with the X grip and it holds securely with no issues. My phone seems very secure at highway speed (+75 mph). If you want to use your phone for GPS or thing else that would require it to mounted close to your dash this is the way to go! January 19, 2016
Would definitely purchase again Purchased for my 03 cbr600rr after riding my buddies r6 with one installed. After a little bit of trial and error I got it secured. It's a must have for your bike. Any bike I get in the future will get one installed without hesitation. December 14, 2015
Great little product I really have enjoyed this mount so far. Makes for a great pairing with my Sena 20s since you can see who is calling and get directions changed quickly. Installation was fairly easy and quick October 27, 2015
Exactly what I needed. This was a great purchase. I was looking for something that I could put onto my bike to allow me to use my iPhone5 while riding. I have a Bluetooth helmet so it is really convenient being able to see what my gps is telling me what to do. I can now use Siri because I can just hold the button without digging through my pocket. This holds really well into the stem of my gixxer too, I can pull pretty hard and it won't budge. July 25, 2015
Great base It took a little bit to get it in and expanded right so it was snug but one in its not going anywhere! June 26, 2015
Amazing product I have tons of people ask me what's holding my phone, and I always tell them about this product. Like other reviewers, it spins forever, but it definitely does not pull out. It's a very secure fit and it holds my Samsung Galaxy S5 extremely well. I can also turn the mount I have sideways to hold my GPS. Once you have the mount, you can swap adapters to make it hold whatever you want held. Great product! June 13, 2015
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