Hi, hope some one can help.

I am trying to set up a Suntour Roller Cam brake for the rear of a Mantis Valkyrie. Trouble is, it appears that only a U-brake or a WTB Toggle Cam will work (desperately looking for a Toggle Cam by the way.)

There are two brake cable guides on either side of the seat post…using only one of them fails to work.

Does anyone have any experience with this set up? The only thing I can think of is to drill another hole in the “cam puller,” and run a cable to each.

Last question, does anyone know were to find brake bosses to fit a roller cam for a IRD rigid fork (the brake boss has to thread through the clamp so as to attach itself to the fork blades).

Thanks, and grateful for the help.