Is there a way to tell the difference between a Tange chrome-moly and a Tange mangalloy fork?
I've recently acquired a cannondale touring frame/fork, and, from the serial number code, I can see it was made in 1984, meaning it's either an '84 or '85 model. I'm trying to figure out (from curiosity, it doesn't really matter) the model number. If it's an 84, it is either an ST-500 or an ST-300 (which as I'm reading the catalog was identical, but just the frameset). If it's an 85, it's either an ST-400 or an ST-500, which only differed in fork and components mounted (which doesn't affect me as I only have frame/fork).
The frame is red of some hue or other and both were offered in red (ST-400 was fire engine red, but it all looks red to me). The only markings on the fork itself that I can see is where it says Tange 4F, Made in Japan.
The person I bought it from called it an '84 ST-400, but I can't see that they sold an ST-400 in 1984, but it could be a frame they made in 1984, but was a 1985 model. Or he misspoke and it's an ST-500.
In the end, it doesn't really matter, I'm just curious. Either way, it's a nice-looking frame that I hope to build into a decent rider for my wife. It won't be taken out on any tours, so the fact that it's going to have caliper brakes rather than cantilevers won't matter (and, in fact, should make the switch to 700c wheels easier).