Subrosa Replacement U-Brake Mounts Description: Subrosa Replacement 990 Mounts are for Subrosa and other frames with removable U-brake mounts that use a long M6x1 bolt that passes through the brake stud. If you have an older Subrosa frame or complete bike with removable mounts that is threaded for something larger than an M6 bolt, this kit will NOT fit. Includes: 2 Brake Mounts 2 M6x1 Bolts 1 Cable Guide 1 Cable Strap