RAM Mount Fork Stem Base Mount
The RAM Mount Fork Stem Base Mount (product # RAM-B-342U) is the coolest mounting device we’ve seen since the first cup holder found it’s way onto a set of handlebars. If you’ve got clip-on bars, this is the product you and your smartphone, GPS, and GoPro have been waiting for. Installation is a breeze, the fit is clean and secure, and the price is right. The Stem Base Mount comes with a 1 inch ball and will work with 1 inch RAM Mount accessories like the RAM Mount X-Grip phone/GPS holder.
The Stem Base Mount will fit most bikes, and works on stems with inner diameters of 12-20mm, 28mm, and .5-1.10 inch.
Note: certain stems with measurements other than those listed above will require adding electrical tape to the area of the plug that is the largest diameter until it fits snugly in the stem.