The Ultimate Addons tough phone cases come with an optional 3 prong adapter attachment solution. Their are a few options shown below where you can mount the 3 prong to 25mm ball , examples like RAM etc. Male or Female 3 prong to 25mm ball etc
Here are just a few options.
The 25mm ball solution can be extended with the below extender attachments.
This image shows an example of a tough waterproof phone case mounted to the 3 prong fork stem adapter. Similar to the mounts above, if you would like help how best to mount to your motorcycle please do contact us and we will aim to help the best we can.