BRCOVAN Aluminum Alloy Mount Base with 1'' TPU Ball for Motorcycle Brake/Clutch Reservoir Compatible with RAM Mounts B Size 1'' Ball Double Socket Arm & Bike Motorcycle Phone Holder

You get extra screws, so it'll fit pretty much. Any japanese or american bike spacers, hand washers and metric. I'm using it on a silver wing six hundred.

I purchase this for my 92 Goldwing 1500se trike. It worked perfectly with the screws and very sturdy with my iPhone . Definitely would buy again.

This is another perfect addition to my RAM mounting systems. It's well made, heavy duty, and easy to use.Putting this onto the Brake or Clutch reservoir easily expands mounting options.Fast Delivery too!

Perfect for my bike Except the ball part is too big for my holder. Great Idea.

It fits/works as expected. Mounts easily with slotted bolt holes.

Used this on my 1996 Kawasaki Ninja 600R. There were no other points to mount it and the classic hole spot was too small for a fork stem mount. This mounts easily and the inclusion of metric and imperial bolts is a great touch. The connection to the brake reservoir is solid and the metal feels extremely sturdy. There was plenty of room in the adjustment holes to make it fit so the install was super easy. Works with pretty much any ball mount phone holder too.

Worked as it should.

The holder is solid and looks great. My issue is that spacers diameter is greater than the bolt head. All of my metric bikes have the socket head capscrew recessed into the mounting clamp. I had to turn them down to fit them on the bike.