Ultimateaddons Motorcycle Fork Stem Yoke Attachment
Fork Stem Yoke Attachment
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The Ultimateaddons® Motorcycle fork stem mounting attachment is an easy and tidy solution to mount to a range of Motorcycles where space on the handlebars is limited. It has been designed to fit the majority of sports, superbikes, endurance and touring Motorcycles, allowing Phones, GPS's, Mobile Phones & Cameras.

SKU : STEM13-15

RRP : £21.99
30 Day no quibble full money back Guarantee
12 months warranty


This Aluminium fork stem attachment is supplied with a 25mm (1") ball connector which is compatible with the Ultimateaddons® adapters which allow many of Ultimateaddons® dedicated holders and waterproof case to be attached. This 1" ball connector is also compatible with many other branded mounting attachments, including RAM/SW-Motech and many more.

This fork stem Motorcycle attachment is easy to fit. Simply slide the attachment into the hole of the stem and tighten the two clamping bushes and then screw with an Allen key to create a tight fit. This part is designed to fit into the steering head tube of fork stems and will work with various stem sizes. This mount is not suitable for every Motorcycle please remove the cap and measure the internal diameter before ordering (may have a cap covering the fork stem,)


  • Ideal Motorcycle mount attachment for fork stem / yoke stem bore hole
  • Suitable for most Sports / Endurance and Touring Motorbikes
  • 5 sizes available - 10-13.2mm / 13.3-14.7mm / 15.0-17.2mm / 17.5-20.5mm / 20.5-24.5mm
  • Simple to install, just needs an Allen Key to fit!
  • 1" Ball connector allows Ultimateaddons® Mounting holders to be attached.
  • Strong robust design with solid connection
  • Ideal for attaching GPS and Smartphones to a Motorcycle with limited mounting space
  • Neat & compact design, looks great on your Motorcycle
  • Made with Aluminium
  • Compatible with a range of Ultimateaddons® dedicated holders and cases
  • Ultimateaddons® Brand
  • CE Approved
  • 12 Month Warranty

What's Included

1x Fork Stem Motorcycle mounting attachment with 25mm / 1 inch ball
(Please measure your fork stem on your motorcycle and select the required size).

About Ultimateaddons

We design in house to a high standard
30 day no quibble full money back Guarantee
12 months warranty
We control quality and production

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We design and manufacture to high standards and are confident with all of our product ranges. We are confident that you will be 100% satisfied with your Ultimateaddons® products.

13.3-14.7mm Fork Stem - STEM13-15
15.0-17.2mm Fork Stem - STEM15-17
17.5-20.5mm Fork Stem - STEM17-20
20.5-24.5mm Fork Stem - STEM20-25
10-13.2mm Fork Stem - STEM10-13