Brompton Phone Mount (Minimalist for M -type )Frustrated with existing options for a Brompton Phone mount we worked on a better alternative with a specialist 3d printer overseas. These OCH Brompton Quad Lock phone mounts are fantastic in that they combine a streamlined and superlight weight mount that attaches onto the existing stem bolt, and then has a Quad Lock compatible lever head. The end result is much lighter than the Brompton Quadlock mount and much less bulky and significantly cheaper