C3yoyodesign P.wave Material : Aluminum Weight(g): 67.9 Width(mm): 45.21 Diameter(mm): 56.39 Gap width(mm): 4.32 Bearing Size (Inside x Outside x Width): .250 x .500 x .187 in (Centertrac Bearing) Stock Response System: C3yoyodesign Silicone pads Style : 1A, 3A, 5A