... 25 x 5 x 3, 32 x 5 x 3,38 x 5 x 3,40 x 5 x 3 ... ,50 x 5 x 3,50 x 7 x 4,55 x 7 x ... ,30,30.16,32.5, 34,40,41.25,45,50,60,60.32,80,100 mm etc,also be according ... 30,40, 60mm are recommendedCross Bar Pitch (center to center):38,50,76,100, 101.6mm etc,also be according to client ...