Originally Posted by
Chr0m0ly
Firstly a like to the catalog
https://www.ragandbone.ca/PDFs/Miyat...logue%2085.pdf
We know it's an '85 based on that seat tube sticker, they changed every year. In '85 Miyata measured their touring bikes in inches which makes them pretty easy to size. Looking at the head tube length I know it's larger than a 21" frame and smaller than than a 25" frame so it's a 23" frame.
23" = 58.4cm, Miyata measures seat tubes from center of the BB to top of the top tube, so center to center its a little bigger than a 57cm.
At 6'1" the "will it fit" question depends on your cycling inseam length, your fitness and flexability, and your fit preference. If you carry your hight in your torso it could be a good fit, if more of your height is in your legs, it could be too small.
If it fits, I think its worth picking up.
The OP's height is in his torso, not legs. He should have no issues with the top tube height. I'm predicting a totally normal amount of seatpost showing. As for standover I don't know if this 610 will have a "normal" BB height or if it will have a rather high one like my 25" one. But at a full two inches shorter than mine, I don't see a problem. It could be a little short on the reach but as I said before, there are literally thousands of compatible longer stems out there.