Flying Horse 2-Stroke Motorize Bicycle Engine 48cc Magneto Case cover &ndash; Gas Bike 49cc Casre Cover Replacement The 48cc Magneto Case Cover replaces the magneto case cover on your 48cc or 66/80cc motorized bike engine kit, including Flying Horse, Mega Motors, Grubee, Stinger, RAW, and Power King Motors This case houses your magneto and magneto magnet, and has an engraved "48cc" to show everyone what you ride Installation is simple: just unbolt and remove your existing magneto case cover, replace and clamp the new 48cc magneto case cover to your motor- it's that simple