I have an eastern bmx bike, not sure what year or what model. im thinking its either an AOS, Jane, or maybe even an Element. it has the seat tube cutout but no other cutouts. has the wavy chainstay, the tt size is 21" (could be 20.75" but fairly sure i measured 21") the brake mounts are welded on, has the holes for removable gyro tabs, the brake cable connectors or for a single cable setup (my brothers ace of spades has the old 3 cable mount) the dropouts arent hollow ended like a grim reaper, etc. for some reason eastern doesnt have a serial lookup online. if anyone has any way to find out exactly what it is, let me know