Ultimate Addons Fork Stem Yoke Attachment

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Ultimate Addons Fork Stem Yoke Attachment - Fork Stem Size 17.5mm - 20.5mm

This Aluminium fork stem attachment is supplied with a 25mm (1") ball connector which is compatible with the Ultimate Addons adapters which allow many of Ultimate Addons 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 vehicle 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 vehicle please remove the cap and measure the internal diameter before ordering (may have a cap covering the fork stem).


  • Ideal vehicle mount attachment for fork stem / yoke stem bore hole
  • Suitable for most Sports / Endurance and Touring Motorbikes
  • 4 sizes available [13mm, 15mm, 17mm, 20mm]
  • Simple to install, just needs an Allen Key to fit!
  • 1" Ball connector allows Ultimate Addons Mounting holders to be attached.
  • Strong robust design with solid connection
  • Ideal for attaching GPS and Smartphones to a vehicle with limited mounting space
  • Neat & compact design, looks great on your vehicle
  • Made with Aluminium
  • Compatible with a range of Ultimate Addons dedicated holders and cases
  • Ultimate Addons Brand
  • CE Approved
  • 12 Month Warranty

What's Included

1x Fork Stem vehicle mounting attachment with 25mm / 1 inch ball


(Please measure your fork stem on your motorcycle and select the required size).

13.3mm - 14.7mm
15mm - 17.2mm
17.5mm - 20.5mm
20.5mm - 24.5mm


25mm Adaptor needed for this mount.