Thanks for the pics but I hav the 2010 and older triumph resevoir and not sure if that mount will fit with the sideways mounting tab my resevoir has
You should be able to use the larger diameter hole under the pinch bolt (a bit like deiselgeek has done with the spanner) and that sets the orientation sideways for you resevoir braket.. I think it functionally would work personally. But you might have some distance issues with the mastercylinder and the resevoir.. and as a result I think it might look odd.