That's how I remember my 650. I only had a 32" bar on it (with 1/2"). IIRC, Dave has a 42 or 48" for his gear drive Macs (650, 660, and a 1-60 series).
I have a 42" hardnose for my 840, but it won't be ready to go for this year. Don't know what ratio is in it yet.
I have a 42" bar for my 2/1 Super XP-1130, but it's not gonna be ready this year either. Just too busy. Would like to find 54-60"ish bars for the 840 and 1130 for the future.
This is a 'building year' (LOL). Hope to have some time over the next year + to get through some of the projects.....