32 frame

[RB]

32 frame damage over the rear axle bumper I've read has been associated with several causes requiring factory installed reinforcements, typically rear collision, push starting, & often it's been said the added weight of a full fuel tank & high speed for the dire road conditions encountered over the many decades. It seems all frames I've seen have a sight bump on both side rails & was curious if in fact this is partially factory tooling...comments ?