Motorcycle Cylinder Head Base Gasket Kits For 950 990 Adventure Supermotard Superenduro Superduke Wide compatibility covering LC8 series including 950 Adventure, 950 Supermotard, 950 Superenduro, 990 Superduke 990 SMT large displacement V twin motorcycles for end engine overhaul Complete set contains cylinder head gasket, cylinder base gasket matched sealing shims; all cut strictly per OEM casting contour with aligned bolt holes cooling oil channels Multi-layer reinforced composite construction withstands extreme engine temperature, heavy off-road vibration long-distance touring torque load Forms stable airtight liquid-tight seal to combustion blow-by, leakage coolant mixing, avoids overheating power drop issues Uniform compression retention gasket deformation blowout; replacement kit for track repair, off-road rebuild regular end