>>2021849for production bikes (as opposed to all those boutique custom names) I know that Miyata made mtbs from around 87 to the early 90s . their cromo is usually regarded as very high quality and for at least the later part of their production they made them in splined, triple butted (STB) tubing. without any hard data I can point to, I'm assuming that should be some of the lightest frames of the era just due to the tubes. could be a good place to start for comparison, anyway
