Shoei Hornet X2 Cheek Pad Set 31mm Off-Road Motorcycle Helmet Accessories - Black/One Size Cheek Pad Set for the Hornet-X2, 31mm. The number on the cheek pad is the thickness in millimeters. Thinner pads can be applied to loosen the fit, thicker pads can be applied to tighten the fit. All sizes of cheek pads will fit any size Hornet-X2.