Varying sizes of genuine kinetic bike bearings.
P03: 1-1/8" (30.15 x 41 x 6.5) 45/45 deg
P03H7: 1-1/8" (30.15 x 41 x 7) 45/45 deg
P08H7: 1-1/8" (30.15 x 41.8 x 7) 45/45 deg
P16: 1-1/2" (40 x 52 x 7) 45/45 deg
P16H8: 1-1/2" (40 x 52 x 8) 45/45 deg
P21: 1-3/8" (37 x 49 x 7) 45/45 deg
P25K: 1-1/2" (40 x 52 x 6.5) 36/45 deg
ACB3636150S: 1-1/2" (40 x 51 x 6.5) 36/36 deg
P09K: 1" (27.15 x 38 x 6.5) 36/45 deg
ACB3344H6: 1-1/4" (33 x 44 x 6) 36/45 deg